I just installed a rebuild kit for a Peterson 4 pin preamp. My boss would like the vibrato to be slower than it is at the slowest setting. Is there a resistor or capacitor I can change to do this?
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Preamps, Modifications & Upgrades / Upgrading my 4 pin Peterson preamp for Rhodes piano
June 02, 2026, 01:51:07 PM
I've installed the Avion recapping kit. It also includes 2n3391a transistors, but no instructions. Can someone tell me if I can just drop them in or has the pinout changed since those olden days?
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