Hi, all, my 303 has an annoying intermittent. R channel develops a high-pitched hiss which rapidly over a minute or so develops in to a loud 60Hz buzz (enough ...
I use a long, heavy plastic knitting needle to help localise intermittent faults. The point is filed to a wedge shape (like a screwdriver) for poking and...
I just became a new member of your group. I am an avid audiophile for over 40 years. Coming from NYC and also living in SF CA for over 19 years. I love...
I am in the process of building a mono system for my 78rpm collection. Can someone recommend a tube pre for my Quad II. I was considering obtaining a Quad mono...
John, Make sure that you do not pull more than 900 mA from the Quad II Transformer Kind Regards Chris Pickett M5LRO All your RF and Audio tube requirements...
Hi John. The original Quad preamp was designed to run with a Quad II. The 'problems' with the IIs' mains transformers failing (still not a common event) was...
I've seen this statement before and it's not quite right. First, the FM and AM tuners each only draws HT if it's selected at the 22, this being one of the...
OK. I'll admit defeat, but the intention was to paint a 'broad brush' picture without going into too much detail. In effect each II supplies 'one whole tuner',...
Well, it might be a tad more complex. From looking at any early (1959) Quad 22 schematic, it appears that: The "yellow" Radio 1 power supply socket receives...
I'm thinking of trying some new KT66s in my QUAD IIs. Was going to try either Golden Dragon Retro OR Watford Valves HARMA STR. Does anyone know exactly the...
Graeme, The Golden Dragons, like nearly all current production KT88;s pull too much current for the quad II transformers. Shame, I could sell tons of them Kind...
I just wish this myth would go away. The ONLY valves which drew more than 1.3 amps and which were KT66s were from Golden Dragon about 10 years ago, under the...
Thanks for the answer Chris. When you say that the "True KT66s" drew 1.3A do you mean the original GECs or the "True" GDs? If the GECs drew 0.9A then obviously...
Hi Chris My question refered to KT66s NOT KT88s. I understand they draw 1.3A heater current. Your answer says they pull too much current for the QUAD II...
Graeme, I have been advised by the manufacturer that the Retros are OK for the Retro amplifiers aka the newer Quad II which is in current production. Some of...
Many thanks for your helpful reply Chris Cheers Graeme ... the Retro amplifiers aka the newer Quad II which is in current production. ... transformers having...
The Golden Dragon Retro KT66s are perfectly suitable for Quad IIs. I spent a lot of time evaluating samples both sonically and electrically before they went...
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the quadhifi group. File : /KT66 3 ...
quadhifi@yahoogroups....
Jul 8, 2006 8:44 am
6295
Thanks to sponsorship from www.tubeshop.com I put 4 x Golden Dragon Retro KT66s in my Quad IIs for the London Hi Fi Show in September 2002. Visitors to our...
Paul, Thanks for this information. I will eventually have to replace my QUAD supplied GEC KT66s. I did buy some replacement KT66s from QUAD some time ago -...
Hi Dave Well you've heard my Quad IIs yourself so you can be your own judge. I'm pleased about the long-term reliability as well as the looks and sound of the...
Hi Paul, I'm using Mullards too for my EF86s and GZ32s. But I was hoping that someone (like GD) will start manufacturing quality alternatives at reasonable...
Having problems with message search?
Fill out this form to ensure your group is one of the first to be migrated to the new message search system.
