 Okay, I've been playing around a little bit with this two-stage amplifier circuit. I've done some slight modifications. I've not changed particularly the two stages here, but what I have done is, from the output, I've put a little driver transistor to drive these NPN and PMP transistors. Now, that there, even though it suggested that there's a resistor in the little circuit that I was looking at, all I did was I saw this circuit just from this simple stage here, and then I thought I could add another stage to it, and I put a 10-microfaric capacitor between them, and that made it sort of like no good, and so then I put a smaller capacitor there, and that made it good on the output. So then I saw this other way you could do this complimentary add-on, and I got that game, but I didn't have this little driver circuit here, and then I saw another part where you could add the driver, so I thought, okay, I'll see if I can just add these things together and get it to work. It's all, there's no practicality here. It's all just to experiment, to play around with, try to understand how the biasing works, and even though I don't, I can't fully describe it for fear of making mistakes. Give me another week, and so I won't describe exactly how it all works, like, you know, if I adjust this here, what happens to the BIAS, I can tell you, I mean, I could, I can give like a brief thing, but I just don't want to make the mistakes and sort of be judged on my mistakes, so this is just an experiment. It's just to play around with the circuit. It's just to get a bit more familiarity with, you know, building the circuits and pressing around, and that's what I've got, that's what I did, and we do get output. Now, I'm running this from my, it's got 10.5 volts there, which is getting into my little boost converter, three-thirds at the right time of day, where if I wanted 12 and a half volts out of my solar panel batteries, I could get them. I would be able to get them really, really, I mean, because you can see that there's 13.4 volts there, but by the time I go through the regulators to control the current and control the voltage, I lose a little bit of power. It's using 60 milliamps, not because it's, the circuit's using loads, it's just that, because I'm boosting the circuit, it's got to get the power from somewhere, it takes it in current and use it for this boost converter here, and I'm just monitoring it here. I was monitoring it there with this, but the problem with this thing is, although having this sort of dial is good, it sticks, so when you're adjusting your voltage, while what's happening yesterday was I was adjusting the voltage, it wasn't really doing a lot, giving this a bit of a tap, because it was up in 929 plus volts, and that's no good when you're trying to do your circuit, so there it is. Now, I've used the variable parts here, just so I could try and get the bias incorrect between the positive and the collector on here, and oh, sorry, is that to the emitter? No, it should be to the collector. Yeah, it is to the collector, and then I've also, no, sorry, sorry, my stand corrected, it's to the base, I should have looked at the circuit, it's actually there that it goes to the base, and I've also used the variable part here between the, what is basically between these two emitters and to the base of this driver circuit, this driver transistor, and that is here. Now these are absolutely terrible, these parts played around with them for ages last night, and that's why I've changed over to this, and I've changed over to that little one down there, which is a 200 ohm part. I don't know if that really needs to be there, but in the circuit that I was looking at, it has a variable part there, and so I've got it set and I've put just one ohm, it was really that you could have nothing, and it's still fine, but I've just got that there, so really that's just, I don't think it's really needed, but it was on the circuits, or the partial circuit is just out of a book and it's just showing you bits, it's not actually giving the whole thing. So yeah, this is what I've got on the output, and if I adjust, I'm not going to try and do this one because the wires are so loose here, it will just come apart. If I just describe what's here first, on the yellow is what's coming in from here, and the one underneath it is set to one volt and it just shows the difference between the input and the first stage, the pinky purpley coloured one, the next one down, that's set at five volts, you can see that, see what the voltages are there, and then the one underneath, I don't know why it sort of bellies out down the bottom, I don't know if that's the right terminology, I'll just make it up, and it's got like a very slight sort of clip on the top, that's just because I'm just pushing it right to the edge. But there's the differences in voltages, like I said, this circuit doesn't have any real practical application, I suppose the first two parts can be for headphone, the next part really, it's not even in phase correctly, if you look at the first three waveforms, they're out of phase with each other by 180 degrees, which is correct, but the next one sort of like, it's got a time shift on it as well, it's not being in phase, or out of phase, well I suppose it is out of phase, but it's just got that time shifting going on, I'm not quite sure all that's about, I twiddle and mess around, and craft around with it, what I was trying to do, to be completely honest, was I was trying to see if I could, if I could get it so I could put a speaker on it, and output, now I mean I've put this here, and I'm probing here, and I don't really need to, I suppose I'm really probing here, I just added that, because in the little description they were trying to say that this would be a complimentary power stage, and they've got a capacitor there, so I'll just stick it there anyway. I am probing on this side, of here, and I'm probing here, I'm actually probing on the, on the collectors, of each, so that's it, that's what I just thought I'd, I just thought I'd share that, like I said there's no real practical thing with this, because if I try, I have already connected my, music player into this, and if you have it on quiet, you know, real quiet, you can plug a speaker into it, and you can hear it there quiet, but you can't power out of it, this is only doing the very small amounts of power before we go into distortion, but it'll be okay for headphones, I suppose the first two stages are great, I'm not sure what that second stage is gonna sound like to one on headphones, I didn't bother, I'm just playing around, I'm just getting more familiar with using the oscilloscope, getting more familiar with just playing around and seeing what happens, trying to set them up, I tried doing more than the, in my circuit simulating software, but I couldn't seem to get it to work, probably even just one stage, so I'm not quite sure what was going on there, but anyway, Ramble, Ramble, Ramble, stop that, I'm gonna actually try and build something today or tomorrow, which is usable, so cheers for watching guys, if you watched, please don't just chuck us a thumbs down, this isn't a tutorial, this isn't supposed to be something that's gonna be great, that you can use and you can connect to them if you want to play around with it, and try and make that a bit better on what it is, great, but it's not really anything, it's just me just playing around and that's, I'm a novice or what was it called, novice, enthusiast, electronics enthusiast, I'm not an amateur hobbyist or professional or anything like that, or a tutor, I'm just doing this just to play around with and have a little bit of fun with electronics, so cheers for watching again, as I said, I'll speak to you soon, bye.