Having replaced the following caps with Jensen HI FI and EPCOS filter caps and i am still getting a high pitch oscillating whistle or squeal whenever i turn the Gain pot after 6 and dial the volume after 2:
C110, C111, C112 -----------------22uf 500v (3)
C303,304,305----------------------100uf 100v (3)
C301, 302--------------------------220uf 300v (2)-------------------THIS HAVE NOT BEEN REPLACED
C306, 307-------------------------47uf 350v (2)
C202------------------------------100uf 100v (1)
I have not installed the former input jacks it had and have kept installed a brand new set. I would like to know if this could be the cause of the whistling as i can reinstall the former ones or it could be attributable to the gain and treble pot of the overdrive channel - Channel 2 of the amp.
I have spent quite a lot of money and time in stupid techs and all they do is either replace parts, move cables or say its a microphonic tube. This is non sense. Can someone give me a more accurate or precise symptom and solution to fix my Fender Red Knob Twin?
C110, C111, C112 -----------------22uf 500v (3)
C303,304,305----------------------100uf 100v (3)
C301, 302--------------------------220uf 300v (2)-------------------THIS HAVE NOT BEEN REPLACED
C306, 307-------------------------47uf 350v (2)
C202------------------------------100uf 100v (1)
I have not installed the former input jacks it had and have kept installed a brand new set. I would like to know if this could be the cause of the whistling as i can reinstall the former ones or it could be attributable to the gain and treble pot of the overdrive channel - Channel 2 of the amp.
I have spent quite a lot of money and time in stupid techs and all they do is either replace parts, move cables or say its a microphonic tube. This is non sense. Can someone give me a more accurate or precise symptom and solution to fix my Fender Red Knob Twin?
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