 Hello guys, no, I was just, I got some of these little transistors in these 2M3904s because I want to make a little bit of a home transmitter. But then I was just like fapping around and I had a little bit of a problem with one of my little slavery sites. Let's say it's little, it's quite big. If you've seen my other videos, you'll see them. A couple of slave exciters that I've built. And because I had a little bit of trouble with it, I forgot the workings of it again. I thought I'd built a little tiny, a little tiny one. This is based around the 2M2222 transistor, really commonly available. You get about 100 of them for about 100 pennies from China. And yeah, this one's off below 9 volts. It's actually set up at 200 milliamps, 8 volts. The power supply. As you can see, positive comes in here, fits on this rug as we resist that to the base of the transistor. On the other side of that resistor, we're going round into the primary. Sorry, the secondary coil. And after that, go into the negative, but it's switched the other way round. It's the protection diode. So the positive is actually going into negative and the positive is going to this connection here. Or should I say, positive is going to the negative rail to your negative connection. And the negative is going to this connection here to the base. From the emitter, we're coming straight on to the negative rail again. And from the collector side, we're going to one side of the primary. And the other side of the primary just hits us on the positive rail before the resistor. Now, the great thing about using the LED instead of a straight forward diode is the LED is a light emitting diode. It will light up when the circuit is correct. So it's a good indication that the circuit is working or not. So don't expect too much from this. I think that this, these little transistors, if I remember correctly about 200 millivolts, something like that, they can give you a bit of a surge. 500 millivolts, I can't remember. Probably should look it up really. But I'm not going to do it too much welly anyway. And like I said, I've restricted my power supply to 200 milliliters just to keep it on the safe side. I don't expect to see any breakout at this. I will push it a little bit. I've got a big old bag of these transistors, but just for now, it's just to show this little circuit works. I'm just going to flip on the power supply. As you can see, the LED lights up. You won't see any breakout from the top here. Because it is just not that powerful to do it. I can feel that. I don't know if you can turn that light off. You might just be able to see. Smallest little bit. You can see it definitely dim in there. Yeah, it's the smallest little tiniest bit. Just enough to give a little tiny bit. But I have got, here's what you've got. Right here it is. I've got a little bib. I mean, that's not terribly bright. It's not. I think this is a 20 watt bulb or something. I'm not quite sure. But it just goes to show. You know, even with the... I don't know how many turns on this coil. There's a couple of hundreds. A couple of hundreds. Maybe two and a half hundred something. And there's four on the primary. I've not even tried to tune this. I've literally just chucked this together. Powered it up to see if I've got a thing the right way around. Lucky for me I did. And yeah. Very basic, simplest. There's no capacitor on this or anything. If I wanted to get a little bit extra from it, I'd probably put a capacitor there. But then we'll need to start trying to call this transistor or use something else. Before, I've only ever used the TIP or TIP35C. On them before. So... Yeah. The most simplest basic. 2M, 222. 2. A little tiny slerox higher coil. There's absolutely no tuning whatsoever. So I don't know if I need an extra turn on there. To get all the extra resonance out of this. Because as you can see... I mean, my other one I can go into a different room. Well, I said there's about a meter. A little bit more than a meter. I don't have anything else to show it lights up in here. I'm not actually prepared to do this one. I'm gonna put it on top of there. Get it to balance. Yay! There we go. Like I said, the power supply over there, I don't even see it. But it's most definitely... Can't get that to stay up. Yeah, it's gonna stay up all the way down. Yeah, it's going down by itself. Which one, not the table though. Which one, not the light off. Yeah, six minute video. Way too long for this silly little thing. There you go. If I turn that up to 9V, let's just give it 9V for a few seconds. Does that make any real difference? Not really, but I expect that the transistor might be a bit warm now. Is it? Let's see. Ouch, yes that is. I'm gonna knock that down to 7V and then turn the power up. Thanks for watching guys, bye.