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R82 only plays at max volume/amp R-2179a



 
 
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  #1  
Old December 22nd 14, 01:28 AM
ekeeb ekeeb is offline
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First recorded activity by CollectingBanter: Apr 2011
Posts: 2
Default R82 only plays at max volume/amp R-2179a

It was dead, I replace the 4 transistors, now only sound if I turn volume all the way up . Is their something that commonly fails on the preamp board?Any ideas. Thanks Ed
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  #2  
Old December 22nd 14, 11:44 AM
Alan Hood Alan Hood is offline
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First recorded activity by CollectingBanter: Dec 2009
Location: Sheffield UK
Posts: 187
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Quote:
Originally Posted by ekeeb View Post
It was dead, I replace the 4 transistors, now only sound if I turn volume all the way up . Is their something that commonly fails on the preamp board?Any ideas. Thanks Ed
Hello Ed,

What is your pre amplifier number (it is etched on the back of the board)

It will be R-3805 (five wire dual control that needs to be screened)
Or R-3788 B (two wire control)

The controls need to be 10K Log, single or dual dependant on which pre amplifier is fitted.

Regards
Alan

Alan Hood
ami-man
UK
  #3  
Old December 23rd 14, 02:39 AM
ekeeb ekeeb is offline
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First recorded activity by CollectingBanter: Apr 2011
Posts: 2
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Quote:
Originally Posted by Alan Hood View Post
Hello Ed,

What is your pre amplifier number (it is etched on the back of the board)

It will be R-3805 (five wire dual control that needs to be screened)
Or R-3788 B (two wire control)

The controls need to be 10K Log, single or dual dependant on which pre amplifier is fitted.

Regards
Alan

Alan Hood
ami-man
UK
Thanks Alan Its R-3788 B (two wire control).
 




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