Yuki, you wrote this a long time ago, but it's taken me this long to arrive at a rather more full and sensible answer to your second par. My apologies. I hope...
I have a hard time finding parts (caps, resistors, etc.) locally for my Quads, can anybody recommend good online suppliers? Preferably in Canada. My cousin...
Try contacting Stewart Penketh at: Stewart_Penketh@... He may have what you are looking for, or be able to steer you to the best place for them. David ...
In the USA Antique Electronic Supply have a good selection of tubes, high voltage caps, carbon composition resistors etc. I've bought from them online and had...
I have removed and cleaned up the choke from one of my II's because it had leaked most of the tar out and all over the amp inside and out, and I plan on...
... Perhaps the first question is why the tar came out in the first place. That may mean one or more shorted turns in the choke. I am trying to think of a good...
... Stop right there. Don't use it if it's non removable. Some day someone will be in the same position you're in now and will curse you for that. Use...
I want to find a better solution but so far the only thing I have found that would hold up to the heat and insulate the choke is 2 part rtv silicon from MG...
Before Find the cause of come out....................... In my Quad II , I had been lived same problem. And I bought from ebay (Paul Bg Hifi) chockie,also....
Hi All I am sure someone will know this, am about to delve into my 606's to renew & upgrade the caps I finally collected the full set of Aerovox's Blackgates...
... Never underestimate the value of a small fan operating at a low speed just to move some air. I used to put these in the cover of the ST-70s I would modify....
I am pretty sure the heating problem was caused by miss-use. When I got the amp the output tubes were mismatched one being a kt66 the other a 6L6GC, and the...
Better still, a larger fan operating quietly at low speed? I'd use a 12V 5 inch / 120mm fan out of an old computer power supply and powered at 9V from a "wall ...
I'll just add that I have two 45-year-old Quad IIs that have been run in century heat plenty of times, and live in a cabinet whose ventilation is not ideal,...
Hi Graham I am a little curious which Aerovox caps you have sourced for your 606. First of all, is your version the Mark-1 or the Mark-2 ? Would appreciate to...
Hi Arup The caps are British made 10,000uf/63V BHC Aerovox ALT22A which I am going to bypass with 10uf/100V Blackgates. The 606's (I have two, Bi amping my...
Hi Graham I'm in China but not with Quad. Quad is IAG - a large group with many brands under the IAG umbrella in Shenzhen, China. Regards Arup ... Aerovox's ...
Well if you're there with IAG tell them I love my Audiolab 8000Q pre amp too, makes one hell of a partner with the 606's :-) Oh and while they are at it to do...
An exactly opposite experience to my own with Quad customer service last year, (dealing with a 989 and a 606). They were extremely quick, (less than a week)...
I'm glad it was different for you Gerraint, I really am, so maybe there might be some hope, but my 33 took 7 weeks to be returned and the 405 a further 8 weeks...
Hi, I understand very well there may be a difference in repair-times. Here @ Dada Electronics we sometimes receive 20 Quads per week for repair/revision and in...
Hello Graham Let me make this clear - I AM NOT WITH IAG-China. I talk to them from time to time and have also visited them but - nothing more!! More later,...
Hallo Graham, The opamp is only there for reducing the DC level at the output. You can change the feedback, but this will have no effect on either the DC ...
Hello, Can anybody tell me something about the differences in circuit design between the Quad 99 mono, Quad 99 POW and Quad 909 mono amps. All information...
I'm a little concerned at the debate over a choke overheating. To begin with, the Quad IIs were designed to run with a GZ32 rectifier, a pair of GEC KT66s and...
Apologies to all of you who think I am from 'numskull-land'. Unfortunately I typed my last 'post' on my Windows laptop and had forgotten that the 'm' and 'n;...
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