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previous: Bruce Well, the amps that used the 100 oh... -- 9/14/2000 3:27 AM

Re: Pro Reverb Hum Problem

9/17/2000 11:59 AM
JCS	Re: Pro Reverb Hum Problem Hi All,I'm still trying to narrow down the hum in this BFPR. I checked alot of things as pointed out by Bruce, preamp tubes, grounds etc. When I put the amp back in the cabinet the reverb circiut works normally. No increase in hum when the reverb knob is turned up. Now there is a hum slight hum with no signal applied and all knobs on zero. The hum increases when eithier volume knob is turned up. Also on the preamp tube test the only way to completly get rid of the hum was to remove the PI tube. This is pretty frustrating ! Thanks, JCS

9/17/2000 11:59 AM

JCS

Re: Pro Reverb Hum Problem

Hi All,I'm still trying to narrow down the hum in this BFPR. I checked alot of things as pointed out by Bruce, preamp tubes, grounds etc. When I put the amp back in the cabinet the reverb circiut works normally. No increase in hum when the reverb knob is turned up. Now there is a hum slight hum with no signal applied and all knobs on zero. The hum increases when eithier volume knob is turned up. Also on the preamp tube test the only way to completly get rid of the hum was to remove the PI tube. This is pretty frustrating ! Thanks, JCS

Replies:

JCS Update, I read over all the threads... -- 9/18/2000 1:20 AM