 Hello there everybody and welcome back to my channel now today. We are looking again at these kits As you can see I bring this one in I've built up three of them. So we got one You got one here And we got the one down here now the differences are on these two I've kept the ceramics But we've got Nitchicon filter caps here We've got a Rubycon cap here and the Nitchicon cap here and Again, Nitchicon on the input here. We've got a Panasonic here. I'm pretty sure it's Panasonic and a couple of Panasonic's here and a couple of I can't remember And they I think these could be Panasonic as well for the filters And on this one, we've got a couple of Panasonic. This is a Rubycon and this is a Rubycon on the input I've kept the ceramics in there. I did play around with a ceramic with a film Down here and also the CB CB kind of what these things are called. I'll stick it up CBB's and Dinner, I don't know, hours and hours and hours and it just became a little bit inconclusive for me But I went back to the these ceramics anyway Just so I could you know just just do some tests showing you the difference when you're using a genuine chip As opposed to the ones that get sent out with these. I've seen some other videos where They're using Nitchicon on here I'm not quite sure about what's going on there because the leads seem too shortened already But you know what you can think is that they came with a kit and They've actually got genuine chip or it seems like genuine chips the whole setup of the chip even from looking at the back of them The whole thing looks genuine enough But what you get now is not that you got these scoops cut out the size the back looks different The actual emblem on it is different. I just show you the emblem on one of these You can see See that there Let's see if I just go in Just focus there see that there That's not a genuine chip the way that Logo is is similar to the way it should be but it's not the way it's not the way it is Sorry about my hand going all over the place. We're going to look at what we're going on the output. So I've set up again as before again, we've got the Cable in setup, so I'm using two output channels on the On the power supply, and I've got the plus and minus tied together here and the plus here and the minus on there So we've got a full range Plus all the way to the minus with a virtual ground in the middle these two tied together If you want to see what that looks like Over here because I could just use the one cable basically I've tied these two together Yep, so they're the two in the middle of the virtual ground, then you got your positive and your negative Okay And now we are going to be taking a peek A little high B So great little piece of kit this is turns itself off After a couple of minutes of just sitting there. That's why I've got to turn it back on again, and we're going to be using John's One kilohertz, and I'm just going to go straight in with the naught point one reference I'm going to take a peek actually at the the 1% so you can see where the actual 1% goes on this We've got a no reference there And we've got a 1% reference there So let's start turn the volume on that then and have a little look at what that's doing so I think that's on the go. Let's just have a little look at what's going on over here hit run over there and Maybe not on the go Just start turning that up. Okay, and you can see here If I just turn this up now you get to see here Minus 50 this probably needs minus 40 once we get this Fully up powered if I just start going up again So we start hitting a bunch of distortion. You can see this coming up now. That's at 92 There's 93 that's quite horrible 92 just drop that down So it looks pretty good now these ones here that you can see you're not made to hear anyway This is minus 81. There's our 1% up 40 minus 40. That's where you'll find that. That's a 1% distortion all the way up there look And we're point 2 over here on our inputs. That's good enough Our second harmonic there is minus 64 and our third here is minus 79 So you're not gonna get to hear any of this and we've got a acrms of 14 128 if I just give up one more we go 14 9 6 But as soon as we go there because of the jump in power goes straight up to 15 8 Can't really do a lot about that because of the way this is Incrementing its its volume it'd be better if in some ways, you know, I was using the signal gen But I don't have that set up. It's any one channel. I don't know if it's set up for a pilot coming in So we call it that I know that this can go 15 5, but we'll just call it 14 9 And we'll take a little peek on that now one of the things I said I like about this is that I can Can I do with this? I can't can I I guess I can sorry what I can do is I can just Stop this here, and it holds everything on the On the stream for me, and I can wind this down and take the pressure off the amplifier Which is good because we don't need that on there all the time I just leave that looping and you can see on the power supply there. We're down to a minimum At least you would be able to if I don't actually Turn down the camera on there. So let's just get that going So you can see that's down to a minimum All right, so we can get a little better look at what we got going on here. And I could say there's the There's the 40 minus 40 for the 1% We're gonna take a peak now at the calculator We can just feed in those numbers 14 point nine seven two so fourteen point nine and And we can just times that again by fourteen point nine if you want to do it like this Nine little equal to that and then divide that by eight And we got twenty seven point seven five one two five now like I say I've I've actually had this up to fifteen five But that was using the wave gen Where I get more Resolution on the figures I don't get that so much, but with the wave gen I don't have a I don't know. I've actually tried to do it like that I suppose I should actually try to do it like that I bet you can do it like that with this thing stick a pilot signal and as I use a different channel Why we've got that like that then? Let's do it again with the naught point one reference All right, so I'm gonna start wind up the power on this The actual voltage is up anyway, so let's just start winding up this power on this As you can see our fundamentals going up rising rising rising here comes our point one Now we've gone into clipping And here we are there at minus sixty so that's You know you're not gonna hear that anyway and first fundamental there Our fundamental there is that Minus zero point two and then we've got the minus sixty four there on Secondary even harmonic and on the third we've got a minus eighty Minus sixty on our Zero point one percent pilot signal so again, that's lovely and If I click up there Sugar that a little bit better Again 1580 takes us into that clipping. It's unfortunate. I can't go in between Those two but what can you do it? So it's 93 now with a clipping 92 like the clipping And we're gonna 14.9. We can actually call that 15 volts if we wanted to And Yeah, so that's pretty good again. It's nice to be able to just stop this at the top and wind this down Just to take the pressure off the system and it helps things cool down a bit as well So looking at that like that just using this Using this particular input I'm now going to swap these out For another one. I'm going to see what the difference it makes there right, okay, so now we've got This one and this one has got the CBB CCB CB I put it up, but this has got the I think these are panocytes. I can't remember nichocon panocyanin And I will chuck it up on the screen actually for what these caps are that are on there I believe this is Panasonic. This is Panasonic. This Panasonic. This is nichocon Again, this ceramic is in here. There's a ceramic down the back of there. I didn't know it's a 331 I didn't have a value for that. It's 330 puff so I Don't have that. So right that we're gonna go straight in again with the 0.1 reference to speed these things up We're gonna power this on those will go straight Well, we're not gonna go straight in at 25 volt because if I made a mistake with the With this setup, I don't want to just blow things Well, that looks reasonable. Okay, so we need to just go straight up now. Oh I know shoot there we go that extra volt Alrighty, okay, so let's start running Our Again, and we're already there a little tiny bit as we're going up. You can see that on here and We can see our pilot. I'm just gonna take it all the way up to around about 90. There we go. We're on 90 and we're gonna go up up up 93 That's quite noisy, but there we go. That's so it's actually gone one One up so if I turn that down again It's 92 93 okay, so that's Terrible just for a little while it looked like it did a slightly better there so a minus 60 again there Minus 62 there and that should be 0.2 So that looks all around like the same and We got 14 9 there You can see what the power supplies number we got 14 9 Just for the life. I can't remember what it was on the other one. I'm just gonna go on more And this is what we get. It's like a minus 55 minus 55 And we got 15 7 and it was 15 8 I think before what it was coming up with so there is a very slight difference on the way that this is now Producing its power, but the nice thing about it again is we can just hit stop on that I can wind this down In order so we don't Over stress anything And it just allows me to keep this running in that loop as well so it stays on We'll do a quick little calculator Check on that 14 9 not thinking it's gonna be much different. We are now we got 14 9 in there before times 14 9 But this time around we're just gonna do it. Yeah different way. We're gonna go 14 point 9 squared Divided by the 8 and we're gonna get the same numbers again 27 7 5 and remember this is keeping that Distortion level below zero point one and we're gonna come back to that in a second So let me just turn that off again, and then we're gonna get the other one the final one on there and see how this does Okey-dokey, so this is the final one in now again. I'm just gonna wind this power supply down because I don't want Doing it in crazy on it in case it's not connected probably Quick little look at that seems to be going up. Okay Let's go 25 27 26 26 25 all right, so Um Let's get this going then so Let's run this You can see already we got a slight little bit of pilot coming in there Just turn that on and just run that up to About 90 pretty rapidly Yep and 91 92 93 so okay back down to 92 and we got our minus 60 there Yeah, minus 62 there 77 look around here and we should be on a zero point Do and we are how do you need difference in it whatsoever there? Which you'd expect but we can see that these are all doing pretty good and again We're not gonna bother doing matter this time because it's fourteen point nine We know what it's gonna turn out to be they're gonna remember this is all go into a peak level of 0.1 like yeah, I mean that's under 0.1 by couple of DB and Okay, it's a six one. I just take that up so they're all being close to each other We're up 15 seven, but let's just back that off a bit So, yeah, that's what we wanted to see on there. Let's just take a quick peek at the actual if we do it like this Now we just get to see clipping top and bottom symmetrically Which is quite good. I wish I could just go in between The numbers there, but we can't we got a jump from that to that But now on the next one very quickly we're gonna set this up and we're gonna get the audio analyzer To check this out Okay, so we're in the virtual machine windows 10 and We are now just going to do a total of my distortion. We're gonna do this Well, we're not even gonna bother with that this thing's warmed up And we're just gonna look at what the power out is so we're gonna go for a range of one watt to a hundred watts Channel one THD and we're gonna run this and I expect all the results be pretty much same across these They're gonna slight variations in what's going on, but they're pretty much all the results gonna be pretty much sort of same So here we can see it's running along the zero 0.1% mark the line there Slightly underneath that if you look over here, we're at eight watts now 10 watts zero point one still flashing just underneath it 18 19 20 watts 23 watts And we're having a cut off at 1% Total harmonic distortion there. That's what we told to stop at and if we just look at Where we actually get to 1% you can see we're on 32 watts there 32.6 watts And that's at the 1% you see the number here Let's see as we cross that there run 1% But even at once we're on that we're on 30 watts here and we're still only 0.169 percent And at 25 watts 0.104 and if we go to 20 watts We are at 0.89 0.089 So really There's a massive difference. I think if we remember correctly, you've got up to about 22 watts before Before we were at the 1% with the other chip And so there's quite a big difference on how these things work. I'm not gonna go through the other ones. I Think the video's gone long enough, but the main difference is here. I Will agree that there are slight variations when you're running But they are so sort of minuscule Like I've seen in John's, he said this is an excellent little setup on this board The way it is and if you just give it slightly better caps I noticed John's Nichocon here and he's using the Rubicon I'm not sure what he's got in here Whether it's the stock one probably nice probably something Never been Nichocon or Rubicon. I'm not sure what's going on there But he's definitely got one of these chips It looks exactly the same as the ones I have and these are genuine store-bought RS components chips That's why I expect them to do pretty good And there's a big difference between the way that these perform and the way that the ones actually getting the kit performed so I would say you know just a couple of decent caps and the The proper chip you could get yourself greatly lamplify system greatly lamplify system We'll just do it for a little bit of frequency response. Just why not you know we're here already range 10 to 50 Hertz the 50 Thousand Hertz Yeah, just leave it like that. No, let me just stop that and just put it up to line level Only a higher line level actually I'm gonna get point from roof of a of a vault Okay, so that's probably 12 oz We're looking for here is a nice straight line. Really just don't want deviation off all over the place and we come in here I think this is a 10 20 30 fighting this could be 20 actually We're just looking for that straight line. That's what we want to see And I straight line so as we come in here at 28, this is our 20 Hertz all the way over That's 35 so 20 is back here and yeah, it's fine There's hardly any deviation in it whatsoever if we look at that that says 27.24 and we got 26.96 Nothing in the highest point I'd say that's probably about there and we got 27.31 So nothing. Yeah, that's that's that's fine Against the frequency tell our money distortion. We're going at 10 watts channel one Quick peek on that And they are all I've done this so many times in the end I think quite know where I was with them because they were all so so similar All you know that around a naught point one percent If you go slightly higher in wattage, you can get it slightly lower than a naught point one percent It does seem to make a difference there And I presume that's because of the noise comes in but that's fine as soon as this is finished We can flick it from the thd plus noise just to the thd and it will show you what it was at that And it'll also show us what it is on the second harmonic and on the third harmonic So that's where they're looking at as well. I'd say a slightly higher wattage Than the 10 watts this would be a slightly lower level Because again, like I say this the noise the lower the voltages the more noise And it will be able to see because there's nothing else there Let's just go across I think it's quite happy there like 0.10 Along the line beautiful That's at 20 kilohertz And that's you know past outside our Band on this anyway, so Yep, not a problem at all. That's when we get to our 20 kilohertz is there and we're still at 0.09 All right, then we can just flick over to this and get rid of the noise and look at the thd And that drops it all down again Uh, so from here at our 19.1 hertz we're at 0.100 And if we just come in a little bit to 100 hertz 0.08 Down here 0.08 0.07 even these bits 0.06 So that's even there there if we look at the second harmonic The distortion there That's the even lower So we can see there 0.06 0.07. I'm just choosing these random 0.07 0.06 0.05 And at the 20k 0.05 and we can look at the third as well The third harmonic and we can look at that from our 20k our 20 It hurts 0.07 randomly again just going through 0.04 0.03 0.03 0.04 0.06 So it's all good. It's all good And that's it. I'm not going to bother doing any more just because um, well, we don't really need to