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previous: Tim C. Re: snarlin' Pro-Reverb -- 8/31/1999 3:21 AM view thread

Re: UPDATE & ideas ??? snarlin' Pro-Reverb

9/1/1999 9:04 PM
jeff
Re: UPDATE & ideas ??? snarlin' Pro-Reverb
hey all,  
 
i replaced the preamp tube socket, the volume pot, and the power tubes but that was not the problem.  
 
I can 'originate' the problem:  
 
(Loud pulsating feedback, LOW frequency only, and  
 
the power tubes actually pulsate - like in a brown-  
 
face Princton when the tremelo is on)  
 
 
 
ONLY by putting the Volume on 7 or more AND the bass control on 5 or more and then hitting the low E string heavy.  
 
 
 
I suspect that the "circuit card" has become conductive  
 
but only goes crazy with a really strong and bassy signal  
 
pumped thru it. Any ideas would be much appreciated.  
 

 
Replies:
Carlo Jeff, if you haven't already done t... -- 9/1/1999 11:20 PM