 Rhaid gan yw, yma hwn o'n hyfforddiad y system diannod 1875. Rydyn ni wedi meddwl am y 24v, 24v i gynnydd, a 12v i 12v. Rydyn ni wedi meddwl am y sgiliau gymunydd. Rydyn ni wedi meddwl i siaradau benodol i chi. ond rwy'n gweithio'r pethau, rwy'n gweithio'r dyfodol, ond yw'n gweithio'n dweud y teimlo'r bwysig ar y tor. Daeth y gallwch yn ymddangos yn ymddangos o'r ffordd ac yn ymddangos yr oedd y ffordd ac yn ymddangos. Mae'n gwahodd iawn yn gweithio'r ffordd o'r ffordd ac mae'r ffordd o'r ffordd. As you can see, I'm hoping you can see, they're pretty much snack on together. Now, I don't have heart nowhere near the heat issue that I had before, because they were getting really warm after 10-15 minutes of playing music at reasonable volume, which I've been doing, and they're cool enough just to leave your hand on them, that you wouldn't even drink tea that cold to how they are, okay? You just wouldn't. I'm trying to listen, because the input's switched off. Oh, dammit. Sorry, my wire's underneath my laptop here to the camera, but I was there and trying to just pull it to her. You can hear, that's how rubbish this camera is, but you can hear, like a little bit of a noise, but nothing that you'd think of as an issue, they're coming through the speakers. So, that's much better. That's just much better. I know it looks like a mismatch of wires there, because I've got the, you know, keeping an eye on the voltages. As you can see, that says 7.7, that says 7.6, just going on 7.5, that's going down, that's going up, that's going up as well. There's going to be that slight variation, because as my input voltage goes up and down slightly there, that's fine. But that's okay, because there's enough room on this to swing about a bit. And these will take up to 60 volts, sort of 30, positive, 30 negative. And of course, I'm not going to get anywhere near that. So, what I'm going to do now is I'm going to set up the scope, I'm going to put the function, the function generator on the laptop, and give a signal in to each of these on-killer-hurt signal in. And I'm just going to turn it up and see what we can do on the power side of things, and see what I can actually pull on power. But I just wanted to do this little update, because I spent a lot of time messing around with the other amplifier, the other power supply, sorry, and the regulators are setting it up and playing around with the resistors and everything. Then, of course, I found that thing online, which will tell me what resistors you use. But it's all good experience, but really, it's about as simple as it gets. And for some reason I just overcomplicated things, and this is much better. It's just cool, it's just really cool. The other one was getting really bloody hot. So, right, I'm going to set up and see what this thing is doing. It sounds just the same. I couldn't take it to full volume before, I was only taking it up to like 20, and it was really, really loud. And it's the same like this now. But without the heat, I'm without the extra regulators heating up and needing all that extra circuitry. This is brilliant. Yeah, and that's because I've gone back and looked at videos again that I looked at a year ago. Well, you know, sort of like within the year, Jono Audio Tech does some great stuff with the LM1875s. And I've gone back and I've looked at setting up for the power and listened to what he said, and realised that I was just trying to push these to the limit, and really you don't need to, you don't want to. And this seems to be much better, so I'm going to go for a power test using my dummy loads, the 8M dummy loads, because I use 8M speakers, so I've got these 8M dummy loads. Got a couple of them, and we're going to see what we've got for power. Right, I'll set that up and come back. OK, I'm going to do a channel on this, and just do a little power test. So, I've got it hooked up to a signal generator, which is this, and it's sent to 1kHz. We're going to seize the output over there. I've already got one channel set up just at the minute. This is the input voltage going into there, but only on the positive side. I suppose I could. Is that still connected up? I'll put this on here, switch over to this. So there we go, we've got negative 17. We've got positive 17.62 over this side, and we've got negative 17.63 there. So, let's switch that back to the scope, and I'm going to turn this up on the volume on my laptop until it starts. Let's put that measurement on, and of course you can't see that, so let's simply just tilt this like this, and go back to there. That's about right, isn't it? No matter what I do with this, I just don't make out the voltage. So let's turn it up, and we're looking for that clipping. There we go, that's about there. So I'll just drop it down one. So it's in range, and we've got 7.8 volts at 1kHz. I'm sorry, the camera's not much good. That's a terrible round. And it's also dropped down to 17.75. I thought this would be worth showing, actually. I've just changed the capacitor over, and look, I've got 8.4 volts now on IMS, and what I did was I put that Panasonic capacitor in there, which is a thousand microfarads, rather than what I was using, which was this one. You can't see that, but it says 334, which is 330 nanofarads. When we get that before clipping, I can just put that back and I'll show you, any more than that, and it will clip. I've got to turn it up with the, as you can see, 8.8. I have to turn it up and down with what I get on my laptop here. It also means that the voltage there is on 17 volts. If I just put that back there, I just want to turn this down a little bit, so I'll turn that down. It's got a higher voltage on 9. I just thought it was interesting, I just thought I'd add that, just because it does make a difference then. On the output power, when you change the capacitors over, it's unfortunate I've only got one more of those, I bought five of these, but I might take off two of those back ones and just put a couple of 2200s in and leave two there, and use another one of those capacitors for this other side, and give that an audio check. We should have a more fuller, rounder base with those electrolytics. I swapped out the 330 nF capacitors for those 1000 mF capacitors there, you can see, big cans, they're panosonics, they're proper audio capacitors, and I know I've put them in there as well for the filtering, but to be fair, this thing's powered up now and you can't hear anything through the speakers. I'm just going to give it a little bit. I've already been harassed today by the Copyright Police for the last video, and I've started to put in a dispute, so I'm not going to give too much of this particular track. If I just put some breaks in it and pauses in it, that should help mellow out the tracking devices, just as it thinks it's latching on. Oh, it's like those horrible things at the Matrix Senate when they come looking for you. Oh, I don't know, I'm jibbering. So, yeah, definitely, well, what I noticed was putting them in there anyway, we've got a little bit of extra power, 8.4 volts RMS before clipping, and I can't adjust it anymore in the steps, you know, on the volume control of my laptop. But I think that was probably just about on there, right? And this whole thing with the regulators and stuff, that's gone now, and I'm just using this 12-volt, 0-volt, 12-volt Talroid, which it just makes life a lot easier, and I haven't got half the heating. Don't get me wrong, running these like full blast through the dummy loads. Yeah, they'd warm up. The plumbing dummy loads were really hot as well. We'd expect that, but just running it like normal now, I've been sat back listening to some music, and they're not really hot at all, they're warm, and this one is a bit warmer in this one, but because of the dissipation thing, you'd expect that anyway. But why have I faffed around so much with doing the whole regulator thing and stuff? You know, one side, I think I said this at the start of this video, is one side I watched again and got a better understanding of what I was doing, and I don't need to push this. At the minute, I've got around about 17 volts going through this, but why don't you take away a couple of volts per side, because we're swinging out and we're going up 17, and down 17, positive, negative. Take off a volt or two for the circuitry. So let's say 15 volts. That's not bad. It's not bad what's coming out, because what's coming out basically is around about 8 watts, a little bit over 8 watts per channel. There we go. Rather annoyingly after a quick reboot. You know, we're still on with the music. That's pretty good. Ah, it's done it again. I know it hasn't. That's the drive. For some reason it's sort of... It's like it loads the drive. This is the drive that the music's on, that one there. And it loads it in and then has a little pause. And when I'm watching a video on the night time, when I take the laptop into my bedroom, it does the same thing when I put a film in. It only does it at the start and then like this. But when you just put a circuit together, you can panic thinking something's going to blow up. But we can't put it on too long because the older, how annoying is that. It's as long as it stops them from, you know, tracking the thing. But it sounds pretty good. I'm just trying to see if there's an actual tune there. It sounds very nice. I am quite surprised. Oh, that's the hard drive. Whoa. It stopped here as well because it's just a little bit annoying, really, isn't it? So, yeah, I'm really chuffed. That does sound a lot better. I don't really have that to the cold than not even doing anything. And that's good because while it's not really doing anything, we don't need it heating up and having to dissipate excess energy. Yeah, so I'm going to go along with that. And I'm going to sit back now and listen to a bit of music and have myself a cup of tea, think about something to eat, and then go looking for the next little project. I will build this onto something on a mal-payment basis, but I'm not going to do it in the next few days. Tomorrow I've got one of my daughters coming over, my grandson, so that's going to be a day filled with that. But I will be cracking on with something very, very soon. Another little crystal radio set, I think, is on its way. Not on its way. I was in buying one. I mean, in my head, I'm going to build one. I'll try and see if I can do something better on what I did last time because the last one was absolutely rubbish. Thanks for watching, guys. And I'll speak to you real soon.