I have installed the post phase inverter master Volume mod on a AB763,(Marshall type) (the 220k resistors are now variable)
Unfortunately the Amp goes into oscillation when the volume is increased.
Does anyone have any suggestions for fixing this?? I have used shield cables etc
regards Don
Fender Twin reverb Master Volume MOd
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Ninguisdomesticus
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Fender Twin reverb Master Volume MOd
Ninguis Musician
Re: Fender Twin reverb Master Volume MOd
Did you try switching the wires around yet?
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Stevem
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Re: Fender Twin reverb Master Volume MOd
Are your shielded cables grounded at only one end?
When I die, I want to go like my Grandfather did, peacefully in his sleep.
Not screaming like the passengers in his car!
Cutting out a man's tongue does not mean he’s a liar, but it does show that you fear the truth he might speak about you!
Not screaming like the passengers in his car!
Cutting out a man's tongue does not mean he’s a liar, but it does show that you fear the truth he might speak about you!
nice
I would like to try that on my twin,Love to see the best way to mod it,ant pics?Good luck,Mikey
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martin manning
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Re: Fender Twin reverb Master Volume MOd
It's not difficult Mike. "Best" is probably personal preference. You can probably use an existing hole in the chassis (extension speaker jack, or ground switch e.g.), so no permanent damage.