 Hello everybody and welcome back to my channel. No, I'm not gonna do too much with this today but I'm just gonna tell you how I set these to up like this so they're pretty much identical. I'm using the original chips of course and the Nichicon and Rubicon capacitors. The rest of them stayed the same using these ceramics and we're gonna see how we get on. I've put both of these onto a single heat sink. I hope it's gonna be good enough. I don't intend on driving this particularly hard if I want louder volumes. I'll use the discrete amplifier built that's under my desk over there. Now putting these on here I'll just let you know you need to use insulators because you don't need these tabs which will be electrically conductive to each other. Connecting, so insulate them from this and also use screw insulators. The insulators are sitting the whole there because if your screw goes on and it's connected through on the metal tab of course it's gonna be connected here and once again you've been making an electrical circuit and it won't go bang. And you don't want to do that especially if you're using the original chips because they cost a few pennies. Now what I do want for this is a sort of preamp. Some of that we can use as a volume control mainly. Now I know there's like a set-up, just a part and do it like that but I wanted a little preamp and I also wanted a little bit of history as well. Now what I got here, so I'm just gonna pull that back a bit. What I got here is a box that's come to me and it has some parts in here for an amplifier build and this is a little bit of history for me. This is because where I've gotten this from or what this is supposed to replicate for me is a little bit of history. When I was younger my sister who's now passed away had a boyfriend, his name is Gary and he was a DJ. He was the old-style DJ which meant that when he made his music he's remixed music and such because they hadn't really started here in this country particularly that much then. He was one of the, I'd say one of the the vanguard of the DJs doing that sort of thing and he had a Hi-Fi system at home. I used to go around and spend a lot of time with him reading what Hi-Fi magazines and actual facts. I loved it all that much. I had a CB radio and my handle was Hi-Fi and I'd sit there with him while he was doing his stuff and that's all that's in there. That's good. So I did all right. That's the job on that. And I remember he set up, I remember he set up here the Aki reel-to-reel system, an A&R record deck, a monitor audio floor-standing speakers and a NAD 3020 amplifier. Now NAD, NAD was a company that came along in 1972 and it had people in there from across Europe and what they wanted to be able to do was because Hi-Fi was so expensive. Hi-Fi was so expensive for good stuff they wanted to do a no bells and whistles and do good quality Hi-Fi for a price that you know the more meeker of us could afford and that's exactly what they did and the NAD 3020 amplifier was one of their successes, one of their success here, plenty of successes and that was one of them. And this is a pre-amplifier board which is supposed to replicate the preamp side of the NAD amplifier. So I'm hoping that I can use this with this and just see what it's like. Of course I want to build it in such a way I can interchange it. I've got a valve or tube preamplifier as well that's already made up and I want to be able to just not play around one and just see what's what. So they may not be going into the casing straight away but it certainly will be something I can just interchange with and play with. I will be doing the music with the sound out of it as well. I'll set it up so we can actually listen to some sound. Yeah so NAD you know they come onto the market they wanted to take on the Giants because all you had was the cheapest stuff coming from China, places like that. And it wasn't very good but the other stuff the other expensive stuff was just out of the reach for the common man like myself and like any of others out there. And so that's what they did and they're a successful company. They're a UK company and I feel quite good about building this. I was just going to take a peek at these and see if they're any good. So no I do. Doesn't feel particularly too crusty. What we got going on here we got some I'm not sure what these are. All Z. Yeah I'm not quite sure they're any good. Oh these are polymer capacitors. They're electrolytics but they're polymers. What we got here we've got Nichicon. Nice Nichicon. At least we're starting off in the right sort of area. We've got the standard connector blocks. Some more polymers. A whole bunch of carbon. I don't know whether I might because it's going to be a two-part. This is just taking a peek at this for now. It's going to be a very short video. I was talking to somebody the other day about film capacitors and the frequency range. I don't think that this is going to be a genuine. This is based around this op-amp and it's NE 5532. I don't know if you can see that. Let's see if we can zoom into it. Oops I've just knocked out my... Oh there we go. Oh okay well that's supposed to be in NE 5532. Alright well that's a bit curious. Let's just get out of there. That's what it's supposed to be based around anyway. Let me just have a little look here. I've actually got that there on the op-amp part. So I'm not sure what's going on there but it doesn't matter. It doesn't matter because there is a socket and I have got a couple of genuine store-bought RS components. NE 5532s and that's exactly what I'll be putting on here. And yeah so this has come from a place called Yi Xing. And they've got their shop details there if anyone's interested. Let's go and have a look. And I'm very intrigued by this. I can't wait to actually get going on it. I might wait for a little bit of feedback about these film caps though. Because even though... I think it's because they're trying to keep him with the date. Now that feels nice. These components feel nice. Good, thick, strong leads. Even though I just bent it there but I was putting some pressure on to do that. And that does feel nice. Of course these diodes are going to be the standards. They'll come out with a lot of things. And all that we've got here is for anybody looking at the film. Yeah so these little tiny caps as well. A little bit different. I haven't seen any of those before. You know in my hand type thing. Alright and there's another niche you cannot presume. So and there are 220 mF or 2.2 mF. Nice and stout. Looked like the mean business these two. I believe it's a positive negative 15 volts supply. So we've got AC ground AC. I don't have 15 volts to provide to it. I've got 12 volts and we're going to have to work off that for now. And see where we get with that. We've got a base and treble and volume. We've got 10 kilometres. That's what these four, these six pin job is. And the rest of it here is we've got R out ground left outs. R in ground left in. Nice and easy to set off from there. These where our little electrolytic polymers go. Don't even know that you've got those at the time. That'll be interesting. You can see where the negative sides on those. I don't think these are the cheapest. I don't think these parts are the cheapest. They seem to feel quite nice. What I've noticed with sometimes a lot of these parts is some of these can be quite thin. Even though you expect them to be easy to bend. The actual resistor doesn't look like it's just the cheapest made resistors. Pretty good. So I'll go ahead and I'll put these on. And just set it up the way that they've wanted me to. And because we've got a socket, like I said, there's a socket here for this. We can be able to pop that in. And I'll be able to swap out this op amp. It's an equivalency to whatever, you know, what I've actually asked for was the NE-3532. And put a genuine one in there. Just see what sort of difference it may or may not make. All right, that's it. This is the first part of the video. I hope you've, you know, enjoyed it. And I'll catch you in the next one. Okay, see you in the next one, guys. Thanks for watching.