TimmyTonga Posted June 30, 2016 Report Share Posted June 30, 2016 Thanks to everyone who has helped me with the 'difficult' bits of this. I thought I'd just show you what it was all about. I wanted to hear a pair of 3as, and the only way I was going to do that was to restore a pair myself. They don't turn up in the UK that often, but a bunch of them came together, which is to say two pairs of scruffy but relatively untouched 3as and a pair of Improved. This is what I ended up with, thinking I could get maybe two decent pairs of speakers out of it. Both the 3as have A2/3 woofers and A19 tweeters, and all seem to work. All eight pots cleaned up OK , except one that had broken plastic wiper pins, and I got a refurbished original from Larry to replace that. At least one woofer is looking a bit marginal, but conversations I've had on this board suggest that it may be OK. The Improved arrived already 'restored', but you see they have KEF tweeters in, and I would obviously be looking to replace those with the correct units, although they could take a while to find. I did a lot of research about caps and read all the relevant threads on this board. Given that I had no idea what the units would sound like and particularly how good the tweeters were going to be, I was rather with RoyC in using good but good value caps, calculating I could always go upmarket later if I wanted to. I also took quite a sentimental view towards preserving as much of the original aesthetic as possible, and as a result came up with replacing the 6uf with an Erse MET cap, but fixing it inside the original case using part of a cable tie, pre-shaped with a heat gun over a sacrificed capacitor, and then sealing it to the case using wax from the original AR cap. The case will get flipped over, and will look the same as originally except it will be around the other way (which it has to be, because the wax-filled end is now empty of wax). I have also chosen good mid and low caps that will fit the original clips, although I will have to fit a discreet extra cap in parallel for the low. The Improved sound great, but I think the 3as will sound better. That's why, in the end, I will probably stick the better grill-cloths on them and to some extent sacrifice the Improved. That's the bones of it, and I will update as I get further in. Regards/Tim Link to comment Share on other sites More sharing options...
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