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|    rec.audio.tubes    |    Tube-based amplifiers... that go to 11    |    52,877 messages    |
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|    Message 52,303 of 52,877    |
|    Phil Allison to All    |
|    Re: Quad II question: High B+ a problem?    |
|    23 Apr 14 17:10:19    |
      From: phil_a@tpg.com.au              "Patrick Turner"       >>       > I recently rebuilt a couple of Quad II's from what was pretty bad shape       > with parts missing etc. Everything now works and sounds great and even       > looks mostly original... except for the highish B+ Im getting. This is the       > new configuration:       >       > Rectifier tube (5AR4) - 33uF/450v - the original choke - 47uF/450v              I am not sure you know what you are doing.              ** The OP knows - his description is of the entire DC supply circuitry.               The changes are the rectifier and filter cap values.              Well, from what he was saying,it looked like he didn't know all that could       be known,              ** What a fucking asinine, out of context, thing to say.                     You don't need to do every single thing I usually do to old Quads to get       better music from them. The use of a single 180r common cathode Rk is       terrible.              ** Hardly a fair comment seeing as it works so well with the specified       output valves ( and most 6L6GCs ) long as they are still in good condition.              Yes but anyone can build a better amp than the Quad-II,              ** So fucking what ?                                   .... Phil              --- SoupGate-Win32 v1.05        * Origin: you cannot sedate... all the things you hate (1:229/2)    |
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