View Full Version : FS - Tube Technology Unisis. 35W integrated with phono
martian sunrise
17-07-2019, 18:27
The amp is in pretty good condition. It has the valve cage.
The amp has been serviced and recapped by David at AD Audio, where he replaced the on/off and the selector switches to Elna versions and also replaced the 8x EL84s with Genalex Gold Lions.
The amp has been excellent with my Tannoy Eatons, but surprisingly good with the Royd Minstrels, when there were standing in.
The phono stage sounds great, too.
I am after £900ono. It owes me quite a bit more than that after the work.
I'll get some photos up tonight.
Location - SE London
martian sunrise
17-07-2019, 18:29
https://live.staticflickr.com/65535/48309033012_c999f90d2f_k.jpg (https://flic.kr/p/2gAUqsh)Untitled (https://flic.kr/p/2gAUqsh) by Richard Howard (https://www.flickr.com/photos/11052398@N04/), on Flickr
https://live.staticflickr.com/65535/48309033002_6533ba5c16_k.jpg (https://flic.kr/p/2gAUqs7)Untitled (https://flic.kr/p/2gAUqs7) by Richard Howard (https://www.flickr.com/photos/11052398@N04/), on Flickr
https://live.staticflickr.com/65535/48309032987_fff9d4c606_k.jpg (https://flic.kr/p/2gAUqrR)Untitled (https://flic.kr/p/2gAUqrR) by Richard Howard (https://www.flickr.com/photos/11052398@N04/), on Flickr
https://live.staticflickr.com/65535/48309032982_60a166b319_k.jpg (https://flic.kr/p/2gAUqrL)Untitled (https://flic.kr/p/2gAUqrL) by Richard Howard (https://www.flickr.com/photos/11052398@N04/), on Flickr
The Black Adder
17-07-2019, 18:35
I remember hearing one of these at a friend's house. A superb sounding amp.
Best of luck with the sale, great price.
A super little amp for someone this.
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Lovely big amp. Nice build quality
AD Audio
18-07-2019, 11:51
Great sounding amp in great condition. Drove my Tannoy Canterbury's very nicely too!
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martian sunrise
18-07-2019, 13:12
It is a shame you had your 'visitors' just before i picked it up - I'd love to hear them.
AD Audio
18-07-2019, 22:07
Next time!
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montesquieu
18-07-2019, 22:18
Trying really hard not to succumb to temptation here. Always fancied one of these.
martian sunrise
19-07-2019, 05:40
Go on, Tom. I’ll drop it off if it seals the deal.
martian sunrise
21-07-2019, 17:51
Bump?
martian sunrise
28-07-2019, 17:28
A little Sunday afternoon nudge
martian sunrise
05-08-2019, 16:09
bumpy
martian sunrise
13-08-2019, 13:30
bumping
martian sunrise
22-08-2019, 12:22
SOLD
AD Audio
22-08-2019, 14:07
Glad you got the sale! Lovely amps and hard to beat without spending very serious dosh!
David
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martian sunrise
19-09-2019, 13:13
this is on ebay (minus the cage) for a lot less (and no bids) if anyone is interested.
martian sunrise
19-09-2019, 13:15
i should buy it back!
WESTLOWER
19-09-2019, 13:25
i should buy it back!
the same actual amp?
martian sunrise
19-09-2019, 13:26
yep
martian sunrise
19-09-2019, 13:29
my wife has vetoed me buying back "the death trap". the heat and glowing bottles had her pooing her pants every time it was on!
the valves and the work by david was almost that asking price. if you can put up with a bit of surface rust, that amp is an absolute steal. i am trying to talk my mate into buying it.
montesquieu
19-09-2019, 15:19
well I have a snipe lined up for this, we'll see what happens
Top tip if anyone wins it.
Take the tranny tops off and get them re-chromed. I had some done by a workshop that does stuff for motorcycles. They came out superbly and cost very little. Years ago now but still a valid course if action.
martian sunrise
19-09-2019, 15:32
I was warned NOT to do this! Apparently the whole amp has to come apart to refit them...
montesquieu
19-09-2019, 17:47
:(
AD Audio
19-09-2019, 17:59
Top tip if anyone wins it.
Take the tranny tops off and get them re-chromed. I had some done by a workshop that does stuff for motorcycles. They came out superbly and cost very little. Years ago now but still a valid course if action.I've got another one in pieces on the bench so I can let you know whether that's true or not. I suspect it's easy enough. Unlike Richie's, this one's had some serious meddling with electrolytic caps wired back to front, film caps placed in wrong place, and incorrect resistors fitted. Amazingly it still worked and sounded pretty good but hummed!
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Spectral Morn
19-09-2019, 18:30
this is on ebay (minus the cage) for a lot less (and no bids) if anyone is interested.
Obviously bought for the cage, not the amp.
They're not a bad amp, but the power output is too high, these burn through output power valves. In an A B comparison the earlier versions Audio Innovations Series 500 (3 output tap version) to my ears sound better, though the Unisis looks nicer.
Back in the early 90s I worked in a store where we sold both brands, and I owned a Unisis for awhile, I still have my Series 500.
Lawrence001
19-09-2019, 20:46
Obviously bought for the cage, not the amp.
They're not a bad amp, but the power output is too high, these burn through output power valves. In an A B comparison the earlier versions Audio Innovations Series 500 (3 output tap version) to my ears sound better, though the Unisis looks nicer.
Back in the early 90s I worked in a store where we sold both brands, and I owned a Unisis for awhile, I still have my Series 500.Not sure you meant to say that about the amp for sale??
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Not sure you meant to say that about the amp for sale??
Sent from my POT-LX1 using TapatalkFor sale on ebay
Lawrence001
19-09-2019, 21:18
Oh I see the buyer has listed it back on eBay.
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Spectral Morn
19-09-2019, 21:41
Oh I see the buyer has listed it back on eBay.
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So this is a dead sales thread, therefore I broke no rule.
Lawrence001
19-09-2019, 21:55
Yes my mistake I thought the OP had given up and listed it on eBay.
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I've got another one in pieces on the bench so I can let you know whether that's true or not. I suspect it's easy enough. Unlike Richie's, this one's had some serious meddling with electrolytic caps wired back to front, film caps placed in wrong place, and incorrect resistors fitted. Amazingly it still worked and sounded pretty good but hummed!
Sent from my ONEPLUS A5000 using TapatalkUh? I already know it's true!
Do it.:);)
AD Audio
20-09-2019, 13:41
I was warned NOT to do this! Apparently the whole amp has to come apart to refit them...Hi, it certainly looks like you have to take the circuit board and transformer mounts off to be able to get the chrome caps off. It's not too bad a job if your amps a keeper.
Incidentally the one in my workshop has a complete phono stage fitted, apart from valves, and apparently quite a few were shipped like that. So add back a wire link and two valves and you've got a free decent phono stage!
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