From: phil_a@tpg.com.au   
      
   "Patrick Turner"   
   > ultrap...@gmail.com   
      
   >>   
   > 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.   
      
      
   If nothing else is changed in an original Quad-II amp, the The use of GZ32   
   or GZ34/5AR4 makes only a slight rise of B+ which is entirely OK and nothing   
   to worry about.   
      
   ** The voltage rises by about 30-40V  so is significant.   
      
   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.   
      
      
   ....  Phil   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)