Hammond Organ Conversion

Converted this Hammond A0-43 organ amp to a guitar amp with dual KT66/6L6/EL34 outputs.  The preamp consists of two 12SL7s, and I wired their (12V) filaments in series and used the heater current to cathode bias the power tubes.  "free" and quiet DC heaters and a lot less wiring!

The power transformer is from an old Lowrey organ and the OT is custom from Pacific.

I ended up mounting the chassis in an old Sound City PA cab, but I forgot to photograph it.

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