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Output tube matching pot on ultralinear fender super reverb (and fried screen grid resistors)
I just picked up a 1979 Super Reverb off Facebook for cheap. I used it for a few weeks never turning the volume above 3 and it sounded great except there...Last edited by judge734; 01-23-2023, 03:27 PM.
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Sunn Concert Bass wonky voltages
I bought a '74 silverface concert bass off a dude who had a video on youtube for $50. His video made me cringe, but I figured it'd be an easy fix.
...Last edited by Gioanpj; 03-20-2020, 03:39 AM.
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Fender filter caps, one more then on schematic?
So I'm working on a 1969 bassman and noticed there's one more filter cap than on the schematic, or on any of the bassman schematics that I've seen. I've noticed...
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Cabinet choice for Bassman silverface
I play guitar through my '70s Bassman silverface 100W and just decided to spoil my beloved amp with a new speaker. There are two outputs, speaker and extra...
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recapping a 100w 75 silverface twin reverb with push pull master...Need Advice please
i'm recapping a push pull MV twin and i noticed that many of the resistors are far from there spec values. for instance the power tube grid resistors are...
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Fender Super Reverb Vibrato Fades
I'm working on a 70's Super Reverb(non-master) that has strange vibrato problem. When you turn the speed knob towards the slowest or fastest settings, the...
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How did CBS change the Fender Amps?
Having serviced guitar amps for 9 years now, I kept hearing about CBS making design changes that negatively affected the tone of the Fender amps.
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SF Champ lost headroom
Hi everyone, I'm pretty new to amp troubleshooting and brand new to this forum, so bear with me .
I'm having a problem with my Silverface...