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   rec.audio.tubes      Tube-based amplifiers... that go to 11      52,877 messages   

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   Message 51,219 of 52,877   
   Alex to flipper   
   Re: Pioneer SM-B200A   
   27 Dec 10 20:01:05   
   
   From: apogosso@tpg.com.au   
      
   "flipper"  wrote in message   
   news:22agh69p0hl5l9c95negfq75p7civdlh6t@4ax.com...   
   > On Mon, 27 Dec 2010 13:30:43 -0800, "Alex"    
   > wrote:   
   >   
   >>Hello,   
   >>   
   >>You know those Japanese tuner-amplifiers of the 60's which have dual AM   
   >>receivers, one possibly with FM and a stereo amplifier, typically powered   
   >>by   
   >>6BM8 tubes...   
   >>   
   >>I got one of those, Pioneer SM-B200A. It is not working -- the tubes get   
   >>hot   
   >>and "burning". Most likely dead electrolytic and/or leaky interstage paper   
   >>caps which bring positive bias to grids. I need to fix the beast before   
   >>getting rid of it.   
   >>   
   >>I have no schematic,   
   >   
   > I found one. If you would like I can post it to   
   > alt.binaries.schematics.electronic   
      
   Thank you very-very much for the offer. Schematic will help. Could you   
   please e-mail it to   
    alex-at-microcoin-dot-com  ?   
      
   Regards,   
   Alex   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)   

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