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This is by far the most realistic electricity mod for Minecraft. It's called Create Power Grid, and it's got
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everything from high voltage to miniature circuit boards that you can build your own logic circuits on. What really sets this mod apart from others
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is that it simulates things like voltage and current as they exist in real life. So, as someone who studied electronics
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in college, I'll do my best to explain how everything works. The mod is relatively new, but it's still very
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functional. The basics all seem to work and there are also a lot of pers. Even some of the advanced features like punch
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cards and circuit boards which are a lot of fun to use also work really well. So, if you want to learn how electricity
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works or if you want a fun way to power your factory or light up your base, then I think that this is a good mod for you. In this video, I'll be covering all of
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the basics and some advanced features as well. I'll show you how to generate power, how to control lights, motors, and more. And I'll also show you how to
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use some of the more advanced features like punch cards, and how to make your own miniaturized circuits. All right, so first things first, how do we generate
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power? Well, we do that with this generator setup right here. And you can see it's quite involved if you compare it to some other mods like New Age or
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the Factory Must Grow. So, we have the rotation coming in and we've got all these wires and components. But don't be
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afraid. It's actually quite simple. So, how it works is we just put in our rotation into this generator clutch
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right here. So, this is just a regular clutch basically, except it works uh for this mod. And it has two modes,
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generator and motor. I don't know what the motor mode does, so I just leave it on generator. and you can flick this
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lever and it will stop spinning just like any other clutch in crate mod. It'll slow down gradually until it
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eventually stops. We'll leave this off so that we can spin our rotors. So, the next thing we do is send our rotation to
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this generator commutator. And you'll notice that there's these two connection points here that will light up when I mouse over them. And this is where we
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connect our wires. So, everything in this mod uses two wires because electricity in real life has both a positive side and a negative side. And
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we need to complete the circuit. So, absolutely everything has two connections. And this is a very
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important thing in this mod. And that rotation continues on to these induction rotors. And these spin in between these
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coils. So there's a bit more to it. We have to connect with a device connector here. And then once we do that, we have
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to send the electricity into these resistors here which allow us to control the current and control the voltage that
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comes out. So here I have a voltmeter and if I just turn this resistor right here. So this is a rayostat and it can
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control the base resistance with a slider. Well, we can change the voltage. So here we have 27 volts. If I just spin
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this the other way, what's going to happen is that the voltage will change. It'll go up to 246. And we'll see the total current also changes. So 1.88
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amps. If we turn it, it's going to go to 1.3 amps. You'll notice there's a negative sign in front. That's just the
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direction because electricity has a direction. Right now, it doesn't really matter. It just means that um if I
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connected this wire here instead of here, well, the sign would be inverted. So this is just a measurement. It's not
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that there's actually a negative current and it's measured relative to which points we connect our wires to. So, let me show you how to build this. First, we
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need our rotation and then our generator clutch. Then, we place a commutator. And now, we're going to place the rotor. So,
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you can place up to seven rotors. I'll just place three because I don't want it to be too big. And then for the
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windings, what we do is we place some shafts like this. So, they have to be perpendicular to the rotors. And then,
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just like making a conveyor, we place a copper coil like this. And it will make a winding. The more windings you have,
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the more power you can generate. So, I'm going to put windings on all four sides.
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And then I'll connect the windings with the generator housing. Now that this is built, I'm going to place a device
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connector here. And what this does is it allows you to connect to a device. So, not all devices have their own contact
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points on them. Some of them you need to put a device connector on to be able to access. So, then I will connect that
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with a wire. And you'll see that it's not able to connect because this block is in the way. So what I'll do is I'll
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place a wire connector here and I'll first connect my point here to the wire connector and then I'll connect it to
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the device connector. And if you follow the design that's in the ponder, I'll place a rayostat here and I'll place a
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power resistor here. And what the raostat does is it will allow us to control the resistance here. So this is
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a variable resistor. It's at 100 ohms. And this is a power resistor that's only at 0.1 ohms. And what this does is it
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just prevents us from having a complete short circuit. So I'll connect it like this. I'll go to this connector and then
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from this connector, the tap, I'll bring it over here. And then from here, we can use this in our devices. What I'm going
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to do is I'm going to place a current gauge. And current gauges are always placed in series with the signal that
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you want to measure because they have an internal resistance of zero. And if you place them in parallel, well, they would short out your circuit. So now I'll go
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ahead and connect this back here. And we will complete the circuit. So we actually have current running through here. Though we have a very small amount
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because our rotation is not very high. Before I change the rotation, I'm going to place a voltmeter here. So, this is a
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voltage gauge and I'll place this in parallel with these two terminals here.
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All right. So, one very important point is that your direction of rotation does matter. So, here I have it set on the
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upper row and that is able to generate power and you'll see some sparks flying here. So, I didn't have it set up
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correctly before and I was getting very little voltage but now I'm getting 500 volts and 2.67 amps. So, how do I
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control the voltage? Well, I'll do that with these resistances. So, I'll just turn this a little bit and we're going to see what's going to happen to the
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voltage. So, if I go look here, oh, I have 535 volts. If I turn it all the way, what's going to happen?
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Well, now we have ah what happened here? Well, this voltage was maybe too low.
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This might have been too low and must have caused a short circuit. So, something blew up. Uh, yeah. So, our
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coils here blew up. So, that's one thing to worry about. So, what I'm going to do is I'm going to increase the resistance here. I'm going to go up to 1 ohm. So,
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an ohm is what we use to measure resistance. I'm going to go back in here and I'm going to rebuild the coil.
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And you see all this wire burnt up. So, at least the wire from here to here and from here to here. So, this should not
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blow up now because I've set a higher resistance here. That's not true. It did
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burn up. Okay. So, I'm going to turn this back down because we don't want it to blow up anymore. So this is one of
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the things that you need to watch out for. Everything has a rating. For example, if I look at this wire, it has
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a maximum current of 70 amps. Uh if you see things start to blow up, the main rule is just decrease the current or the
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voltage. You can increase the resistance too. Uh which is what happens here. Cuz so what's happening is I I think I'm
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decreasing the resistance and it is causing more current to flow. So is that true? When I turn this uh that way,
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yeah, the current is going up and so is the voltage. So, let's not take it too far. Let's not go more than halfway. Um,
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of course, you can change the values here. Actually, if I put this up to 400, then I can turn it all the way. I think
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should be able to turn it all the way. Yeah. So, now I have quite a bit.
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[laughter] Things don't explode right away either. So, I guess they heat up and then they blow up or you have a
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certain amount of time before they blow up. Anyways, let's just fix this and we'll stop messing around too much with
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it. I think I should turn this one up too because um
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when this is all the way to the right, it must be at zero resistance. So, so regardless what the base resistance is 0
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0. Um so, let's just fix these coils and then we'll not mess around with it too
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much. The name of the game is don't have too much voltage or too much current because you will blow things up. Now,
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let's leave it here. These are still at zero. Why is that? Why is that? They should be connected.
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Are there some coils that are broken? Well, this should be working. Oh, is this too
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high, though? Ah, this was too high. I wish I could give you a more complete
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explanation, but for now, use these resistors and don't make the resistance go so low. And play around with it so
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that you get a current and a voltage uh that's right for you. So, you probably want something around 120 volts. I guess
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you can get that just by increasing the voltage a little. Oh, probably it's better to change using the rotation. So,
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if you change the rotation, yeah, changing the rotation is probably a better way of getting the voltage that
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you want. Though, just know that it's not linear. Um, if you change the uh rotation, like I'm at 144 and I have
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133. If I put this to half, if I go down to 72, it's not going to be half of that. It's going to be a really small
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number because yeah, it's going down all the way. I think it's not even enough to
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get any voltage out of. So, you have to have a certain threshold. Um, but once you're above that threshold, well, you
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can just move it around and uh see what output you get for the given input rotation. And of course, your current
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will also change because current is a function of voltage and resistance. So, we saw that we can measure voltage and current. There's also this plotter right
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here that's pretty cool. And this will measure voltage over time. So, you have a record of the voltage that's in your
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system. So, you hook it up the same way as your voltage gauge. And if I change the RPM here, well, the voltage on my
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system is going to change. And we can see that with a thick line right here. So, you can change the speed on this,
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and this will change how fast the paper scrolls. So, if you want to have a longer time that's recorded, well, you
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can just change the RPM, but you're not going to see the changes as quickly. If I turn this up to a faster speed where
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you're going to see that the changes are more readily apparent. So, I'm going to change this here, and we're going to see
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that it's going to drop down to zero pretty quickly. All right. Right. So, we've seen how to generate electricity.
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Now, let's have a look at what we can actually do with the electricity. So, we're going to have a look at a bunch of things. We're going to have a look at
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lights, motors, new industrial processes, and more. So, let's start off right here. So, here I've got a creative
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voltage source, and I'm going to use these because it's just easier to use for demonstration purposes. So, I've got
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120 volts, and I've got a light bulb. So, there's different types of light bulbs. We have the regular light bulb,
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the low voltage, and the grow light. So, the low voltage bulb is good for 12 volts. The standard one is for 120 volts
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and the growth lamp is for 240 volts. And the growth lamp will actually help your crops grow faster. So to set up a
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light bulb, you have to first place a light fixture and then place the light bulb. Then on either side, you right click and you connect it to both the
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positive and the negative ends and the light bulb will light up. So you can right click to remove the light bulb and then you can place another light bulb on
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it. Now if I place a light bulb, such as the low voltage light bulb, well, it's going to explode like that and you're going to have to change it. So, you can
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do that just by right-clicking with a proper light bulb and you can place it there. So, when you're setting up your circuits, you have to be careful that
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you're setting them up the right way. So, here I have two light bulbs and they're being fed 120 volts, but they're not turning on. So, they're standard
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light bulbs. And why is that? Well, that's because they're in series. The electricity is going through both. So,
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120 volts going through two light bulbs is not enough because each light bulb will not get the full 120 volts. They'll
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only get half each because there's two of them. the voltage going in series will be divided between both light bulbs. So each light bulb will only be
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getting 60 volts. So if I go here and I increase this to 240 volts while the light bulbs will turn on because each
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one is receiving 120 volts. So I'm going to check the voltages with my multimeter and you'll see what I mean. So here it
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says -19 which is basically 120. So there's some losses in the wires. So the
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wires do have resistance and that means that the voltage will not be exactly
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split between both lights. some of it will be lost on the wires. So, for example, if I go here, well, there's a
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little voltage drop here. So, we call it a voltage drop when the voltage uh goes across a resistance because everything
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is a resistor. A wire, a light bulb, they're all resistors. And this one does have a higher voltage across it for some
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reason. So, I'm not sure why, but they're both very close. They're both 120 each. And if we go here, well, we'll see. Well, if I go here and here, well,
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that's about 120 volts. So, one thing about circuits to remember when you're analyzing them is that here, here, and
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here, they're all the same point. So, even though there's a wire between them, the the wire is pretty negligible unless
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you're doing things over very long distances. So, just know that if you connect something here to here, it's the
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equivalent of connecting something here to here or even here to here. So, all
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these should give us the same value. um if they don't that's because of the uh difference in voltage in the wire which
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is pretty negligible in our case. So while we're here let's have a look at Ohm's law. This is a useful formula that
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describes the relationship between voltage, current and resistance. And it's just something useful to know when
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you're looking at circuits whether you're designing or troubleshooting them. The mod gives us three different kinds of motor. We have the plain old
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electric motor, we have a constant speed motor, and we have a servo motor. So how the regular electric motor works is that
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its RPM will vary based on its voltage. So at 250 volts we have 239 RPM. And if
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I drop this down to let's say 125 to half the voltage, the RPM is going to drop by a lot more than that. So it's
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not a linear relationship. And the same is true for the stress units. Now we have the constant speed motor. And this
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works differently. So we can feed it a voltage, but we set the speed up top. So if we set it to 256, well, we'll get 256
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RPM. And we're getting 45,000 stress units. If I change the voltage down here, let's say I bring it to half.
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Well, what's going to happen? Well, the RPM is going to stay the same, but the stress units are going to change. Up
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next, we have the servo motor. So, the servo motor, you can see it has three prongs, and it does something
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interesting. You control its position, not its speed. So, you have to feed it a certain voltage. So, if we go here and
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we press shift, we can see that the maximum voltage is 45. And that is the
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voltage across these two terminals. That's the positive and the negative. So, right now, I'm giving it 45 volts.
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And here we have the control voltage. So, what the control voltage does is you control the position that it turns to.
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So, here I have a bearing set up and I have some blocks on top. If I change this voltage here, well, we're going to
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see this turn and it's going to go to the position that is assigned to 4 volts. So, if I go and I bring this down
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to 3 volts, it's going to turn one quarter around because you can set the four different cardinal directions,
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north, south, east, and west. And if I reverse the polarity, it's going to go around the opposite way to get to that
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position. So, the control signal is 0 to 5. And really it's minus5 to positive five because of the polarity which
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controls the direction. So those are the motors. Now let's go have a look at some of the industrial blocks that the mod gives us. In regular create we have the
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encased fan that we feed with rotation. While in power grid we have the electric fan. So the electric fan simply gets
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connected to a voltage source and it will work the exact same way. So that means if I place a campfire and I place
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a raw pork chop, well it'll cook it the exact same way as if it were with the regular old encased fan. But what if we
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don't want to use fire? Well, we have the heating coil. So, this will work like a fire or like lava. So, you can
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smelt blocks and cook items using this. So, it works the same way. You connect the coils here to a power source. So,
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given enough voltage, the heating coil will get hot enough and you can even smelt blocks with it. So, this can be used both to cook food and smelt blocks.
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And you can do it all without lava or fire. So, up next we have the basin heater. And this works exactly like a
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blaze burner except you don't need a blaze. And this block is a little bit different than the others because you need to place a device connector on it.
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And what that looks like is it's just a block that you place on other blocks. So I can place another one here. And this allows you to put the connections where
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you want. So here the heater has its own prongs. This does not have its own prongs, but it's all right. You just place the device connector and you
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connect the wires to it just like you would with any other block. To show you that they're the same, I'm going to make some brass. I'm going to put some zinc
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and some copper here. And then I'll do the same here with a basin heater. So a bit of copper and some zinc. and we're
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gonna see that it's going to mix and we're gonna get some brass out of this. So, if we look inside, we can see that there's six brass ingots. So, this is a
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useful way to get brass without needing to get a blaze burner. And the next item that we're going to look at is the electromagnet. So, the electromagnet is
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necessary if you want to make magnets. And you get the magnets by magnetizing iron ingots. So, what are magnets good
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for? Well, they're used for making electric motors. So, if I look at the crafting recipe, we see that we need two magnets for every electric motor. So,
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the next item that we're going to look at is the alarm bell. So if you have a look at it, we're going to see that it requires 20 volts. So this is the
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maximum voltage that it actually needs. So the sound of the bell will actually vary based on the voltage that we give to it. So if I give it 12 volts and I
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flick the switch, well, we're going to hear the sound. But if we increase it, it's going to get higher and higher
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pitched until at 20 volts it sounds like this. And if we try to go a bit higher,
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well, we're going to kind of overload the bell. And eventually, well, it's just going to go crazy until eventually it'll start to smoke. And if we leave it
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there too long, it'll blow up. So maybe if I just increase this a little bit, you'll see what I mean. There we go.
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Things when they get too much voltage for too long, they will start to smoke and then blow up. Though some will immediately blow up if you give them too
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much voltage too soon. So we're going to have a look at punch cards in just a bit. And these are things that allow you to automate your electrical signals. But
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first, let's have a look at switches because I realized that I just showed you a switch, but I didn't explain how they work. So a switch just interrupts a
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circuit and then closes the circuit. So, we say a circuit is interrupted or open if there's no signal going through. And
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we say it's closed when there's actually signal going through. So, if I flick the switch so that it's towards the green,
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that closes the circuit and allows the signal to go through. And if I put it to the red, that opens the circuit and
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stops the voltage from passing. So, there's three different levels of switch. We have the LV switch or low voltage switch that actually allows you
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to go up to 320 volts. There's the medium voltage switch that lets you go to 640 and the high voltage switch that
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doesn't have a maximum voltage but it does have a maximum current. And there's also buttons which work like switches
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except only for a short period of time. So while we're on the topic of switches, let's have a look at how you might wire
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up some lights in your house. So here I've got a power source and you'll see well you've got all these wires sticking
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everywhere. But you can actually place wires in this form. So when you're placing wires there's two ways you can
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do it. You can either place directly from one point to another and it'll put a hanging wire or you can place them
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along a surface like this and you can go up walls and you can have really fine control. And when you place them like
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this, you can actually place a block over them and they'll still work. They'll continue to work. So this light
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is still on even though I've covered up the wires feeding it. Wires that are placed hanging though will be removed if
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you place a block in their way. So you see that wire broke, but this big one here didn't break. So I can put blocks
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here and it won't break. Well, this is a cord. And the difference between a wire and a cord is that the cord has both
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wires connected inside of it. So to use the cord, you need to use a wall socket. So I can place a wall socket here and I
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can put it somewhere else. And using the power cord, I can just click on one side and then right click on the other. And if I want to remove it, well, I can use
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the wire cutters. And you can use the wire cutters to cut any wires or cords that are hanging. Or if they're on the
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ground, you can just right click and you can remove them one block at a time. So another useful block is the cord
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junction. So the cord junction is just a place where you can connect two different cords to. So for example, if I take a copper cord and I put it on a
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connector, well that'll be one side. And then I can click there and you'll see that there's the red wire and the blue
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wire. That's because the cord, even though it has both wires in one, you still need to connect the wires yourself
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to both the positive and the negative side. And you can connect them to these junctions where you can connect other
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cords off of. So I can place this Well, let's say if I had another socket here, I could do that. And I could just
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connect it right there. And you can also connect multiple cords off of each cord junction, though you can only have one
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chord per socket. So, back to the switches. So, there's a medium switch. And if we look, we'll see that the medium switch goes up to 640 volts.
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Well, how do we get 640 volts if the batteries only go up to 250? So, here I've got some batteries. They're at 250
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and it doesn't go any higher. Well, the answer is that you connect them in series. So, voltages will add up in
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series. So, if you want to get a higher voltage, you just connect a bunch of batteries together. And you do that by connecting the positive of one battery
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to the negative of the other. Just make sure you don't put any wire between these two terminals. Otherwise, you'll get a short circuit and your wire will
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burn up. So you'll see we have two batteries at 250 volts and we have a total measured voltage of 500 volt. So
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if I just increase this to say 100, well, we're going to have a total voltage of 600 volts. Now since the
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total voltage of the switch is 640, let's go up to 640 and even exceed that and see what happens. So if I put this
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up to 140, well, we're right at the limit of this switch. If I go a bit higher, well, it's going to be okay. If
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I go all the way up, uh, now the resistor will start to smoke. So, the resistor is actually the point of failure and not the switch. So, things
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just like in real life, they have a rated voltage, but you can often exceed that rated voltage or rated power or
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current by just a little bit, but don't try to get too greedy and exceed it by too much because then things will blow
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up. So, you see this resistor started to smoke because it's at 500 ohms. And let's say we give it close to 700 volts.
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Well, what's going to happen is that we're approaching the maximum power of the resistor. So, the resistor is at 500
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ohms and we're giving it, let's say, 700 volts. Well, that's close to,400 watts going through it. And this is only rated
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for 1,000 W. And if I increase the resistance to, let's say, 1,000 ohms, well, that means that the current is
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only going to be 750 milliamps or 0.75 amps. So 750 milliamps * 750 volt is
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about 560 W which is well below the maximum rate of power of the power resistor. So now we saw the low voltage
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switch the medium voltage switch. So now let's have a look at the high voltage switch. So the high voltage switch actually requires some rotation to get
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it to move. So you just put on a valve handle or a crank and you can crouch and you can close the circuit. So the high
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voltage switch is good up to 39.2 amps. So what does that look like in practice? Well, here I've got 1,200 volts and I
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have a resistor here. So, right now we're not getting that much current, only 6 amps. So, for us to get up to
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39.2 amps, what does that mean? Well, current is voltage over resistance. So,
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V over R. So, basically, we want to know 39.2 = 1,250 overX. So, solving for X,
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that gives us about 32 ohms. So, if I reduce the resistance all the way down to 30, what's going to happen isn't
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going to be the switch is going to blow, but rather the resistor. So, this can handle a lot more power in practice and
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in most cases than the power resistor. So, if I place the creative resistor that doesn't have any limits uh in terms
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of how much power it can handle, we'll see that we can actually blow the high voltage switch if we reduce this voltage
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down to below 30. So, I'm going to put it down to 30. And we might see it smoke. Maybe not. What about 20? Aha. So
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around 20 ohms, it'll start to smoke and blow. So 20 ohms if we have 1250 volts
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gives us a current of around 62.5 amps, which is a lot more than the maximum current of 39.2 amps that the high
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voltage switch can handle. Oh, and that's funny. If you blow the high voltage switch, part of it still remains, and you can't place the switch
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anymore. You have to break that and then place the switch again. So that was the high voltage switch. Now let's go have a look at some of the advanced features
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and see some of the really fun things that we can do with create power grid. All right, so now let's have a look at
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the punch card and the punch card reader. So don't be intimidated by the whole punch card system. It's actually
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quite simple. So first you have the punch card reader and you just give it rotation and you feed it a punch card.
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So to set up the punch card, you just rightclick it and then click where you want to punch a hole. And what this will
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do is it will control what signal is sent to the eight outputs of the punch card reader. So the punch card reader
23:01
has eight outputs. So if I put a hole here and here in one and two, well then on the first tick, it's going to send a
23:07
signal to these two. And then on the second tick, it's only going to send it to three. So let's say I want to also
23:12
send a signal to output two on the second tick. Well, I can just punch this hole here. So if I punch this whole row
23:18
for the first four ticks, output two is going to have signal. And I can do that with any of the outputs just by clicking. And I can click again to close
23:25
that hole. And then when I'm done, I just press the check mark. So here I've set up a punch card that'll send a signal to a different output on each
23:31
take. So let's see what this looks like. All I have to do is right click the punch card here and the signal will start. So you see a signal is being sent
23:38
to a different light on each take. And when the sequence on the punch card is finished, the punch card will come out here and you just rightclick and you get
23:44
it back. So the faster you give the rotation, the faster the punch card will execute. So if I set it to 256, well
23:51
it's going to execute really quickly. On the front are the eight inputs and they're numbered 1 2 3 and four on this
23:56
side and five six seven eight on this side. And in the middle here is the common. So what I've done is I've set
24:01
the positive terminal to the common. So how I have it set up now means that the current will come out of the positive.
24:07
It'll go into the common and then based on what's on the punch card. Well, it'll send out that positive signal here and
24:13
then the current will go through to the negative of the power source. So that's the punch card system. And the idea is
24:19
that it lets you automate your electrical signals. So really, I like to think of it as something like a sequence gear shift, but instead of automating
24:25
rotation sequences, you're automating electrical signal sequences. So the mod also has a couple of weapons. We have
24:31
the electrobaton and the electro zapper. And there's also the portable battery. So if you're in survival and you have
24:37
the portable battery equipped, so you just equip it like armor. And if you have a charge in there, there won't be
24:42
any durability loss when you use the item. So the electro baton is a melee weapon and the electro zapper is a
24:48
ranged weapon. So, the electro baton will actually stun enemies when you hit them. So, I've hit the creeper and it's not moving. It has slowness applied to
24:55
it for two seconds. And it doesn't deal a lot of damage. It only has 1.4 attack damage. But the electro zapper has eight
25:01
attack damage. So, with the electro zapper, I can just shoot them. And it actually has a bit of splash damage, so
25:06
it's hitting both of them at the same time. And I can deal quite a bit of damage with the electro zapper. So, the electro zapper is a lot of fun. And the
25:13
electro baton, well, it just lets you stun enemies. So, there you have it. two fun weapons that are added by this mod.
25:18
Okay, so now let's have a look at my second favorite feature in this mod. This is the circuit design table and it lets you make circuits. So here I've got
25:25
a circuit on it already. So if I click on it, we actually have these blueprints. This is a schematic and we
25:30
can play around with it. So we can place things like relays onto the circuit board and we can rightclick to get rid
25:36
of them. We also place wire connectors because these will interact with our blocks in the world. So, this is a
25:41
miniaturized circuit that we can connect to from outside and you can do a lot of really cool things. The possibilities
25:47
are really endless. So, you can even place traces and there's two different layers. So, I can place it here, but
25:52
you'll see there's some grayed out ones. That's because there's two layers. So, you can actually have them cross over
25:57
each other. And if they're on different layers, they won't interfere with each other. So, if I want to get rid of a layer, I just go to delete selection,
26:05
select this, and click again. And that'll delete the trace. If I want to delete a component, I right click on it.
26:10
If I left click on a component, I can give it a name. So here I've named this connection VCC. And that's a term that
26:16
we give to where you put the voltage. And if we go here, well, I've named one ground. So this is where you give your power. And then this will be where you
26:23
put your signals in one and two. So I have two outs, out and out negative. So this is actually an AND gate. So I made
26:30
a logic gate out of relays. And this will actually have a positive output and an inverted output. So it's actually an
26:36
ANDgate and a NANDgate in one. So what you can do next is you can click on save
26:41
changes and you can actually save this to a folder. So here I'll name it ANDgate. This is probably the 12th one
26:47
I've made. So I'll save the file. No, I already have a 12th one. Is it the 13th? There we go. It's the 13th version of my
26:53
ANDgate because I had a lot of troubleshooting. So now if I want to bring this into the real world, I just click on the check mark and it makes an
27:00
empty schematic. So I have the empty schematic. It's not really empty because it has my circuit on it. And if I do
27:05
shift rightclick, it'll turn into a circuit board. And then I can place that into the world. So here's one that I've
27:11
placed previously. And you can see that I've wired it up. So if I break this connection, you'll see that I can wire
27:16
it just the same as I would anything else. So this is an AND gate. So what does that mean? Well, it'll let the
27:22
current through when both signals are true. When both signals are on, when
27:28
input one and input two are on. So if I turn them both off, this light at the output will be off. If only one of them
27:34
is on, well, the light's still going to be off. And if the other one's on, the light is off. But if they're both on,
27:40
then the light will turn on. And if I place another light, we'll see that this one will be the inverse of this one. One
27:46
on, one off, one on, one off, and both off. And this light is on, and this one
27:52
is off. So I have an ANDgate combined with a NAND gate. And with NAND gates, you can make anything. So a NAND gate is
27:58
a universal logic gate. And you might have heard things like NAND RAM or something else like that. Well, that's
28:04
because they're made with NAND gates because NAND gates are so versatile. You can make any kind of logic circuit with
28:10
only NAND gates. So, with a NAND gate, we can also do some other cool things. So, what I've actually done here is I've
28:16
made a flip-flop. I've made memory. So, the prices of RAM are through the roof. So, I decided I'd make a little bit of
28:21
memory in Minecraft. This is one bit and it is two nan gates with the output of
28:28
one going into the input of the other and the same thing for the other one. And this gives us an SR flip-flop. S for
28:35
set, R for reset. So right now I have both signals on and I have this light up
28:41
here. This is QBR. So exclamation Q means the inverse of Q. So in logic circuits we typically use Q to denote an
28:48
output. I'm not sure why, but that's just the convention. So if I give it a signal here, the light here is going to
28:54
turn on. So does that mean that the light just turns on based on which lever is toggled? Well, no. Because if I just
29:01
turn this off, the light will stay on. That means it remembers that this switch was toggled. So we're actually using
29:07
inverse logic, which just means a high signal is treated like a low signal. So for S to be considered high, it's
29:12
actually when the input is low. But that's just how we typically represent a set reset flip-flop. It's a little bit
29:18
complicated and it might be more than most of the people watching are gonna ever do with this add-on, but I just
29:24
thought it was neat and I really wanted to make a flip-flop and I'm glad I was able to do that. So, I'm going to continue showing you how the flip-flop
29:30
works. So, if I set the R signal low, well, now this light is going to turn on. So, I've reset the signal. So, Q is
29:37
no longer high. I've reset it back to zero. And if I change the value here, if I turn it to a low state, well, the
29:44
light will be on because it remembers. So, now they're both low. And the only thing that changes which light is on is
29:50
which one was last set to high. So with the set reset flip-flop, there is one thing to remember. If both signals are
29:56
high, you get an invalid output. So it's important to never set both of your inputs to a high value. So that's the
30:03
set reset flip-flop or SR flip-flop. They're called flip-flops because they flip flop between a high and a low
30:09
signal, a one and a zero. So, like I said, this is a bit of an advanced thing that you can do with this add-on, but I
30:15
just had a ton of fun making this. I'm so happy I was able to make a set reset flip-flop in Minecraft. I never really
30:20
played around with redstone because redstone logic is kind of weird, but since I studied this in school, I was able to fairly easily set up a flip-flop
30:27
using what I knew about logic gates. And while we're on the topic of logic gates, you can also interface your redstone
30:32
with your circuits. So, here I'm using something called a redstone relay, and I've put it on a circuit board. And if I put a switch next to it, it'll activate
30:39
that relay. So here I've set up a very simple and logic gate. And if I set both these levers to true, well then the
30:46
light will turn on because the current will go through. So here I just set up a 12volt battery in one side out the other
30:52
side. And these relays when they receive redstone signal, they allow the current through. And if we want to convert back
30:57
to redstone on the other side, all we have to do is place a comparator next to a voltage gauge and we'll get a redstone
31:03
output coming out the other side. So, this is an easy way to set up redstone logic using electricity because the way
31:10
that redstone logic works is pretty cumbersome in my opinion. So, this is a great way to simplify that and make
31:17
things that are more complex that you probably wouldn't be able to make otherwise or that would take up a lot more space. So, I really like what we're
31:25
given in this add-on and I can't wait to see what kind of crazy things people make. I bet you someone's going to be able to make a computer out of this.
31:31
I've already made logic gates and flip-flops. So, I made memory and logic, and with memory, you can make registers,
31:37
and with registers and logic, you can make CPUs. So, there you go. It's technically possible to make a computer
31:44
using what this mod gives us in a way that I think is more efficient than what you can do in just base Minecraft. So,
31:50
we've seen a bunch of things that we can do with Create Power Grid, but there's still a lot more to see, including my
31:55
personal favorite, the cathode rate tube. But before we go and look at more of those things, I'm going to show you some of the compatibilities that create
32:02
power grid has with other add-ons. So though create power grid uses electricity, it's also compatible with
32:09
other mods that use forge energy. So let's have a quick look at how create power grid interacts with three other
32:15
create mod add-ons that add electricity. All right, so first thing we're going to look at is the electric motor from
32:20
create crafts and addition. So for all of these, so for all of these we need to use the device connector. So, normally
32:26
you would use this small connector from Crafts and Editions if you're using the regular forge energy from that mod. But
32:32
instead of using that, we use the device connector and we connect it to a power source with two wires just like we would
32:38
with anything else in create power grid. So, right now I'm sending 30 volts to this electric motor and it's using 60
32:45
forge energy per tick and that seems to be exactly enough to keep it spinning. So, there's no forge energy accumulating
32:51
yet. It never really runs out. So, if we go to the back, we'll see that it's at 32 RPM. So, 30 volts seems to be enough
32:58
to supply 60 forge energy per tick. So, I'm not sure if that's the exact
33:03
conversion. We also see here that it's taking 2 amps. So, maybe the volts time
33:09
amps, so that's 6 watts that it would give us. So, maybe the conversion is based on the watts. So, maybe 6 watts
33:16
equals 60 forge energy. I'm not quite sure, but that's what it seems to be. So here we have a basic motor from create
33:22
new age and just like crafts and additions this also uses forge energy. So you can see that it says using 15
33:29
forge energy per tick. The forge energy is shown by a lightning bolt. So if we go here we'll see that the battery is
33:34
producing 8 volts and we're about stable. So that 8 volts seems to be
33:40
enough to supply 15 forge energy per tick. So maybe it's a bit less than half
33:45
the voltage. So it's not moving at all. It's actually exactly stuck at 294 forge
33:50
energy. It's using 15 per tick and it's spinning constantly and it's taking 8
33:56
volts at.19 amps. So maybe here, maybe if I put this at 32, maybe that's
34:02
actually what's needed to keep this stable. So maybe the 32 is good for 60 forge
34:10
energy. Well, no, it seems to be a bit more. So in any case, it seems that you need to give maybe half the amount of
34:17
voltage as forge energy that it takes. I think I'm not quite sure that's how it works. Maybe it's multiplied by the
34:24
current. So that's about.16 watts. Oh yes, maybe.16 is close to 110th of 15
34:32
forge energy. I'm not sure. So now let's move on to this motor from the factory must grow. So the factory must grow has
34:38
its own electricity system. So it doesn't use forge energy. It does have volts and amps, but it represents things
34:45
a little bit differently. So, it only uses one wire instead of the two from power grids. So, its electricity
34:50
simulation is a less realistic version of power grids, but we can still control it uh with the power grid electricity,
34:56
which is pretty cool. So, there's no indication of forge energy here because it doesn't use forge energy, yet we're
35:01
still able to make it spin. So, if we just increase the voltage, well, then the RPM is going to be higher. So, there
35:07
you go. So that's how you interface with the different motors from the different electricity add-ons for create mod using
35:12
the power source from create power grid. All right, so now let's go back to some of the advanced features from create
35:18
power grid. So next we're going to look at the transformer. So what is a transformer? Well, it's a tool for
35:24
changing the voltage. So here I have 100 volts and on the other side I have wow I
35:29
have a,000 volts. So how did I do that? Well, I did that with the transformer. And how it works is it works by the
35:35
ratio of windings from one side to the other. So in real life, a transformer works with AC. So that's alternating
35:42
current. That's the current that comes out of your walls. What comes out of batteries is direct current. That's DC.
35:47
So that will not work with transformers. In this mod, everything seems to be AC. I'm not quite sure. But for now, it just
35:53
looks like everything [music] works with the transformer. It looks like we're getting AC out of here if we're able to
35:58
change the voltage. So I'll show you how this works. So, I'll go ahead and destroy this and show you how to set this up. So, I just place a transformer
36:05
core and then right click with a wrench. And then what I do is I take some wire and I will right click on one of the
36:10
terminals and then right click and hold on the transformer. And I'm just going to have one turn on this side. So, I'll
36:17
do one turn and then that will set the primary coils to one turn. And then I will click on this connector here and
36:24
that will set this winding. Then I repeat again for this side. I right click and right click and hold and I'm
36:30
going to go and do 10 turns and that sets a 1:10 ratio. And then I'm going to click here and now we've completed our
36:36
transformer. So I'll just wire this up and then we'll see what the output voltage is going to be. So if I look
36:42
here the voltage is basically 1,000 volts. So how it works is the secondary over primary ratio is what determines
36:49
the voltage. So I did 10 on this side, one on this side. So 10 over 1 is 10 *
36:55
100 gives me 1,000. So you can set up different voltages based on the ratio of
37:00
the secondary to the primary windings. You can also make larger transformers. So I can set up four like this and then
37:06
rightclick and have a bigger one. It might only be aesthetic. I'm not sure. There doesn't seem to be any sort of
37:11
information about how many watts or volts that the transformer core can use. So for now I just believe that it's only
37:18
aesthetic. All right. So up next we have batteries. So batteries will store electricity and they operate around 12
37:25
volts. So, if we go and look here, we see the maximum voltage is 12.7 volts. Right now, I'm charging this one. I'm
37:30
charging it with 14 volts because in real life, you charge your batteries with a higher voltage than what they're
37:36
rated at. Um, right now on this voltmeter, we have 12.7. Okay, that's weird because I have 14 going in. So,
37:44
there must be a drop across this resistor. Um, I'm just going to if I turn this up, what happens if I go to
37:49
like 18 volts? Well, okay, a bit more will go through. So basically just put a slightly higher voltage than the
37:56
battery. Does the battery have an internal resistance? Well, no. It doesn't say anything about that. So I'm
38:02
not sure why this is showing only 13.8. Ah, but if I take my multimeter, we can
38:08
check. So if I go and look here, ah, yeah, 4.2. Yeah. So if I have 18 and
38:14
then I have 13 here, so that's 4.2. That's pretty close to 18. So there must
38:20
be like an additional drop across here. 4 point oh 4.7. Okay, that makes sense.
38:26
Yeah, 4.72. And then ah that's close enough. So basically whatever isn't across here is across this resistor. And
38:33
I have this resistor here because I think I might make a short circuit if I don't put that resistor here. Let's do a
38:38
test. Let me put this down to 13 volts and try to connect it directly. Just go
38:45
ahead and do this. So basically you want to put the positive to the positive and the negative to the negative when you're
38:51
charging a battery. Um so that resistor was not required because this must have
38:56
some internal resistance that's high enough to not make any sort of short circuit. And in real life when you
39:02
charge a battery you can just plug the wires directly to the terminals, right? Because when you jump a car that's what
39:07
you do. So that makes sense. So I guess we don't have to worry about shorting things out in this case. So right now I
39:13
have 12.7 volts and that's cuz I have 13 here. Here, I'm going to put this to zero and we're going to see what
39:18
happens. So, we're going to run. Why did that go? Why did that explode?
39:26
That's weird. All right, so let's charge up the battery for a little bit. I'm not quite sure how long it takes or if there's a
39:32
way to see what the actual charge of the battery is. Okay, so let's just wait a while and then we're going to disconnect
39:38
this power source. All right, so I'm going to drop this down. What if I drop this down part way, like 8 volts? Oh,
39:45
well, I still have some voltage across here. If I drop it down to zero. Aha.
39:50
So, the battery is supplying a constant 12.5 volts. Um, oh, and it's going
39:57
through this resistor. So, this is, I guess, fairly high resistance. Like, if I put it lower,
40:04
we're probably going to see it drain faster. Yeah. So, now it's 12.49.
40:10
And maybe it's not so much that it's draining, but because Oh, because I'm
40:16
pulling a higher current, it's probably only able to supply uh a certain voltage
40:22
because the battery has a power. Okay. 12.7 volts. Uh so the current is 1.5
40:30
amps 12. Well, that's underneath the maximum
40:36
current. If I put this back up,
40:42
the voltage is going to go back to 1.42 1 12.3
40:50
12.4. Okay, so I guess a higher resistance will give out will mean that there's a
40:58
higher voltage. I mean, that makes sense because batteries are actually um when
41:03
they're not connected, they actually put out a higher voltage. So, if I put this all the way up, it's going to be a higher voltage. It's probably going to
41:08
be 12.7. Well, no, it's only 12.4, but maybe that's because the battery is a
41:13
little bit discharged. So, the output of the battery will vary a little bit depending on the load you put on it, on
41:20
the resistance you put here. So, if I drop this down, well, it's not going to explode. I go to zero.
41:30
Well, if I go to zero. Oh, yeah. Well, that makes sense because I guess I'm shorting it out. I'm guessing this
41:36
doesn't have an internal resistance. That's the only thing that really makes sense. All right. So, that seems to be batteries. Um, I don't know how to see
41:43
what the charge inside is. So, just don't short it out. I mean, that's a general rule. I thought this would have
41:50
an internal res. No, because voltage sources do not have Yeah. So, voltage
41:56
sources have no internal resistance. Okay, that makes sense. Yet, if you plug
42:02
two car batteries together, you don't get a short. I don't understand things. Um, like I said, I study digital
42:09
circuits. Power is a whole other thing. I mean, I guess this is just basic concepts. Now that I think of it, it
42:15
makes sense, but I don't really get why if you have two batteries, they don't make a short even though they have no
42:21
internal resistance. At least that's how they're modeled. Anyway, don't worry about that too much. Um, just know that
42:28
when you're playing with batteries and you're charging them with a voltage source, you need a resistor. Otherwise, you're going to have a short circuit.
42:34
And you can also stack batteries together like this, just like a fluid tank. And you can go all the way up to a 3x3. So, I can do 3x3 and then just
42:42
stack them up here. So, up next, we have the Variac. So, you might be thinking, wait, Variac, it looks an awful lot like
42:48
the Raostat. So, what's the difference? Well, the Variac is also used to split voltage, but the way it works is a
42:54
little bit different than the Rayostat. So the railostat is a variable resistor yet. The variac doesn't have any
43:00
resistance settings. So in real life, this works a lot like a transformer. It has coils and it's able to separate the
43:06
voltages based on how you adjust the coils. So right here I have one output
43:12
that's about 90 volts and then 63 volts here. So I have a 100vt source and then
43:18
across this resistor we've got 10 volts. Okay, so this is the total voltage across the variac. Then when we adjust
43:25
this, we can go all the way down. So here we have 20 volts. And if I turn this all the way, we're going to have zero volts here or close to it. And then
43:32
we can adjust this. And what's cool about the Variac is that there doesn't seem to be a maximum voltage or current
43:39
that you can give it. It seems to be able to take anything you throw at it. And I think that's because of how it works in real life. I guess I guess it's
43:46
coils. And the coils are well, they're doing they're not they're not
43:51
dissipating heat like a resistor. I guess probably they're just doing some coil. Okay, so when you have coils, you
43:57
have to think there's electromagnetism. So when you have an alternating current going through a coil or an inductor, an
44:05
inductor is a coil. Um, and when you put two inductors parallel, it actually makes a transformer. If you look at circuits and you see them at a 90°
44:12
angle, it's so that there's no um so that they don't behave like a transformer. So coils make magnetic
44:18
fields and then I guess that doesn't dissipate heat or as much heat and so you get a way of playing with voltages
44:24
without the downsides of resistors which is really you're just like burning off electricity. You're just wasting it.
44:31
You're making a heater basically um and then taking the voltage across the other
44:36
resistor. But with like something like a raostat you're kind of just wasting some electricity and it's not very um it's
44:42
not very efficient. So enough about that. There's a lot of theory there. You don't really need to know that to know
44:48
how to use this mod, but it does give you an idea of how things should work based on how they they do work. So, I do
44:55
like that about this mod. So, moving on, we have the contactor. And all this is it's just another switch, but it's
45:01
electrically controlled. So, you just give it an input here on uh this device contactor, and then you wire it up on
45:08
the sides here. And what's cool is you can put multiple together, and they will all link themselves up. So right here I
45:13
only have an input signal into the first one. But when I give it signal here or if I take away signal well it'll control
45:20
both of them. So both lights are on even though only this contacttor is receiving electricity. And the contacttor has a
45:26
rated voltage of 24 volts. And what that means is that the input voltage has to be 24. So just one quick note here. I
45:33
have it at 26 volts. Now why did I do that? Well, because even though it's rated at 24, if I put it at 24 and I
45:40
activate that, well, the lights aren't going to turn on. And why is that? Well, because there's a tiny amount of voltage that's lost in the wires. So, this one I
45:47
found to be particularly sensitive. So, a lot of the other components, if you're so long as you're around to or close to
45:53
its rated voltage, it'll work. But, this one's very finicky. So, here I put it at 25 and that's enough voltage to actually
45:59
light it up. So, if I put it back to 24 and turn it off and flick it back on, it's not going to work. So with my
46:05
multimeter, I can go check to see that there's only 23.6 volts. So that 33
46:12
volts that's missing is enough to make this not work. And that's because uh that voltage is dissipated mostly
46:18
through here because wires they do have resistance. All right. So up next we have a carbon pile coil. So what is this
46:24
thing? Well, this is a resistor that will change its resistance based on the amount of input current. So, first you
46:31
place the block and then you have to place blocks of coal on it to build up the coil. Just make sure that when
46:36
you're placing the blocks of coal, you don't place them here. You place them off to the side a little bit, otherwise you won't be able to place them. So,
46:42
this is the trim, and this lets you change a little bit how much uh it's going to change its resistance. So, you
46:47
can just leave it at zero, or if you want more resistance, you can go up. If you want less, you can go down here on the negative side. So, we'll just leave
46:52
it at zero. So, right now, the minimum resistance is 80 ohms, and I have four blocks tall. So, I guess it's 20 ohms
46:59
per block. And now I have an input signal here. So I have this power source. What happens if I give it some
47:05
voltage? So 1 volt. Oh, it's going to go up a little bit. Interesting. So if I go to 10 volts, what is going to happen?
47:11
Well, it's still at 0.2 amps. And the resistance is up to 879 ohms. So that's a lot higher. So by increasing voltage,
47:17
you end up also increasing current. So if I crank this all the way, if I crank this higher, it'll go up to a few
47:23
thousand. 250. Well, it explodes. and it explodes because it has a maximum power
47:29
dissipation of 100 watts and we went too high. So, I'll just connect this back up. We'll go down to uh 10 volts more or
47:37
less. We'll wire this up one more time. H. Okay. So, it doesn't register these.
47:42
So, if you lose the bottom part, you got to place the blocks of coal again. All right. So, I'm going to put how high can
47:47
this go? So, that's as high as it can go. One, two, three, four, five. you can go up to five high in which case it has
47:54
a minimum resistance of 100 ohms and it looks like that uh resistance is applied
48:00
through here. So why am I doing this? Why am I using measuring current um when
48:07
I want to know resistance? Well, this is 100 volts going through,99 ohms. My
48:12
current here is about 90 milliamps and for 1,99 ohms and 100 volts that sounds about
48:19
right. Before we look at the cathode ray tube, there is one more thing. Um, this is the high voltage breaker. So, this is
48:26
just a way of using redstone to allow current to flow. So, there's a crank here and there's a lever. So, right now
48:33
we've got a power source, a light bulb. This is conducting. There's two connectors here. If I flick this lever,
48:39
oh, nothing's going to happen. If I flick it back on, aha, well, this will turn off. And I guess if I flick it
48:44
again, it's going to turn back on. Well, no. Because I have to give it some rotation. I kind of have to charge it
48:50
up. So, you remember in Jurassic Park when Dr. Ellie Satler is rebooting the power and she's got to pump that thing.
48:56
Well, this is basically the same thing. I'm charging it. So, it says status open. Charged. Open. It's not
49:02
conducting. Charged means that it's ready. So, now if I flick this lever
49:07
again, well, I will make the connection. And there you go. That's the high voltage breaker. You have to charge it,
49:12
I guess, because maybe it's so high voltage there's sparks and then you want to make sure your connection gets made
49:18
quickly. So, you need something that moves fast. Not quite sure. Like I said, I was not a power engineer. I did not
49:24
study power electronics, but I think that's what's going on here. So, there you go. That was a high voltage breaker. Now, let's look at the cathode ray tube.
49:31
Okay, so cathode ray tube is the CRT in a CRT TV. So, old TVs had cathode ray
49:37
tubes. If you've seen, I guess, like old sonars or old oscilloscopes, they all have CRTs in them. And basically what
49:43
you're doing is you're shooting a bunch of electrons down a vacuum tube. So there's a vacuum in there and then
49:50
you're using magnets on the sides to aim that beam. And that's how a TV works. So
49:55
like the old TVs, they would just there'd be like, okay, you know why they're scan lines? Because you're
50:01
that's the beam and it's being aimed at different parts of the screen and it's leaving an imprint. So in power grid um
50:09
you need to make a lot of connections. Anything that's red basically I gave it a red wire and everything that's blue
50:14
such as the commons or the cathode itself I colored those. And you can do that just by using any kind of dye. So I
50:20
can grab let's say some green dye and let me not put it on here. Let me put it uh let me go ahead and put it here. So
50:26
you can just color any wire really easily with any kind of dye. So this is
50:31
a complex setup. So, I will be putting a world download of this on my Patreon.
50:37
So, I'll try to be as clear as possible, but if there's anything that you want to see for yourself, figure out how exactly
50:42
it's wired up. I'll put that world download there that you will have access to on my Patreon. So, let's see how this
50:48
works. So, first we're going to look at the ponder. So, first step is always look at the ponder. So, it is indeed
50:54
complex. There's a lot of connectors on it. So, the 12 volts between the heater
50:59
and the cathode, um, all tubes need to be heated up. Next, you have the 1000 volts between the anode and the cathode.
51:06
And I guess that's what allows it to shoot the electron beam. And then you can use uh the deflection coils to
51:12
deflect uh the beam and draw something on it. And you can also put a negative voltage on the grid, which will make it
51:18
uh less bright. So, a lower voltage will decrease the brightness. Um, in my setup, I just have it uh at the full
51:24
brightness all the time. So you do need quite a bit of voltage and I've done that by using a bunch of batteries in
51:30
series. So one note about the X and Y deflection. This is probably the most complex part uh because you need to have
51:38
both a negative and a positive voltage. So yeah, if you just give it positive, it's only going to go on one side and
51:44
you can't like you'll be able to go right but you won't be able to go left or you'll be able to go up but not down
51:49
or or in the bottom half of the screen or the left half of the screen. So what I had to do was I had to put the ground
51:56
um in between these two resistors. So I have a 40 volt source. So if we look here, okay, well the deflection voltage
52:02
is 20 volts. So I have a 40 volt battery. Why do I have that? Well, because it's 40, it's 20. It's plus 20
52:09
and minus 20. Okay. So how does 40 volts turn into plus and minus 20? Well,
52:16
because I put the ground in between these two resistors. So 1 ohm, 1 ohm. That means is I'm going to have 20 volts
52:22
on this side, 20 volts on this side. Let's take out the multimeter and have a look. Yeah, 20 volts. And then here,
52:27
what do I have? Well, I have 20 volts to all this wire. Okay, so that's the deflection common. That's the ground of
52:34
the deflection. So a ground is a reference point. So if I say the reference point is 20 volts, that means
52:41
20 volts is actually 0 volt. Okay? Then 0 volt is actually minus 20 volt and 40
52:48
volt is 20 volt. So, I've set that up on either side. So, I have the same voltage divider set up. So, I have 20 volts
52:54
across here, 20 volts across here. Exactly the same thing, and I've set up some variacs to um be able to control
53:03
that voltage. So, I've set up everything. I have a lint controller right here. So, I've got that in my inventory. Let me just grab that. And
53:10
using that, I'll be able to draw on here. So, just with the arrows, I'm able to control the beam and move it around.
53:17
So if I leave it in one spot for longer, it gets brighter and then as time goes on, the image slowly fades away. So
53:24
right now I'm not able to draw like a real image, but I can move it around. So it kind of looks like, you know, when
53:30
you see those old radars, there's just a beam going around and then everything behind it slowly fades. It's it's the
53:37
same kind of thing. Same thing, I guess, with an old oscilloscope. Um, so anyways, I can play around with it. And
53:42
I've also used the um punch card reader over here to set up a sequence uh
53:48
that'll give us a bit of a short animation. So let's have a look at it. So let me just grab the punch card. I'm
53:54
running at 16 RPM and I've set the signal here to control these redstone links. And I use the trick that I showed
54:00
you earlier uh with the comparators connected to the voltage gauges. So we're just going to give this the punch
54:06
card and we're going to have a look at what's happening here. So, basically, I'm just using it to send a signal
54:12
around. I've uh programmed a sequence of turns on the variac. So, you can see
54:17
them turning and that's changing where the beam is going and it's drawing us these lines. It's nothing fancy, but it
54:23
shows you how it works. So, I mean, could you really draw a complex image on here? I guess you could, but you'd have
54:32
to move the varia really quickly or I'm using Varia. Maybe someone else is going
54:37
to think of another way to do it. Yeah. So, for now, we just have pretty basic signals. Let's say you wanted to draw a
54:42
smiley face. Well, you'd have to put the beams of light for the two eyes for a while and then you need to like move it
54:47
quickly so that it didn't make a trail or makes a very faint trail and then draw the the smile. Uh, yeah, that'd be
54:53
kind of tough, but it's probably doable. I bet you it's doable. Um, anything more complex than that, I'm not sure. You
54:58
could probably draw some shapes. Like I I could basically draw a square. A circle would be tough, but you could
55:05
probably do it. I'm not quite sure if you could do it. Yeah, you probably could do it. going to be hard. Um, you might need multiple punch cards though.
55:12
Probably couldn't fit it all in one punch card. Oh, yeah. That's just me trying to think of what you could do with this. I think this is really cool
55:17
because in school I remember learning about cathode ray tubes in probably science class in high school and then in
55:24
college while I studied electronics, but CRTs were already obsolete and you're not going to build a TV in school. Um,
55:30
or maybe you did back in the day, but in my day, well, they were already obsolete. So, these are just used for
55:36
playing Nintendo right now. Um, if you want to play retro games, you should have a CRT because they're um, well, the
55:41
image just looks better. Anyway, there you go. That's the cathode ray tube. This has been create power grid, a
55:47
really cool mod that has realistic electricity. So, I hope that this isn't
55:52
too intimidating for you guys because it is realistic and electricity is hard. Electronics is not an easy subject. for
55:59
simple things like light bulbs and switches and setting up motors, I think it's going to be quite straightforward
56:04
because it's it's pretty intuitive how it works. Now, when you try to get into things like, okay, you got to worry
56:11
about, okay, there's some voltage across here, so you know, I'm giving it a certain voltage and then less voltage is
56:16
making it across. That can be a bit confusing. But I think if you just sit with it and okay try to reason your way
56:24
through it, I think you can actually figure out more than you think you're capable of. So if you enjoyed watching
56:29
this video and you'd like to see more, then please consider subscribing and activating notifications. And I also have a Patreon if you'd like to support
56:35
me there. Thank you for watching.