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Hello:You probably don't need capacitors,that would be needed if your amp had a continous hum,I agree that it could be a loose connection or a tube socket,try gently moving the tubes one at a time by putting your finger on the top of them an giving them a slight jiggle,do this as soon as they are heated up but don't wait too long or they will be too hot to touch and will burn you,if you get the static you will need to clean the tube socket and the pins on the bottom of the tube,turn off the amp and pull the plug out of the wall before doing any cleaning,another cause could be the elements inside the tube becomming loose and touching,if this is the cause the only way to fix it is to replace the tube,I usually find this problem by giving the tube a GENTLE flick with my finger or something soft like a pencil eraser.don't do it too hard or you can cause the elements in the tube to short out.
Good luck,
Tim K.

direct link to my Ebay store.
http://www.sonicelectronicmusic.com

To: vintagesynthrepair@yahoogroups.com
From: antdes45@...
Date: Thu, 20 Mar 2008 21:44:33 -0400
Subject: Re: [vintagesynthrepair] amplifier spitting out noise? (off topic?)

If nudgin makes the noise go away, it's probably a poor contact somewhere. Try playing with the tubes, the socket and/or tube pins could simply have oxydation or something like that.

2008/3/20, cockandswan <cockandswan@...>:
hey guys...

i come to you with a slightly off topic problem. i'm guessing it
involves capacitors or something like that, and it might be a problem
someone could have with a synth, plus you guys are a wealth of
knowledge sooo....

i'm having a problem with my fender bassman tube amp. it's spitting
out noise randomly. sometimes it doesn't do it at all and other time
it gurgles and spits out random volumes of static noise. i noticed
that if i gave it a sharp nudge it'd go away for a second. same as if
i turned it off and on. a friend of mine had the same thing happen
with his off brand tube amp. i'm guessing all the components are
original so there are probably some components that are 40 years old.

am i right about needing to replace caps? if so, should i just do them
all, or can i test for good and bad caps?

thanks again for all your past help guys,
johnny

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Antoine Deschênes

Vintage Synth Repair

RE: [vintagesynthrepair] amplifier spitting out noise? (off topic?)

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