WARNING: Tube/Valve amplifiers use potentially LETHAL HIGH VOLTAGES.
Building, troubleshooting and testing of these amplifiers should only be
performed by someone who is thoroughly familiar with
the safety precautions around high voltages.
Hi, does anyone here know the pin outs for a Hammond 6 pin tube amp (HR40 Tone cabinet..not Leslie) I would guess that most the 6 pin units are the same. I'm trying to test the unit with an external pre amp. Any schem's avail? thanks