Photos

The amp is built in a folded aluminum chassis available from Antique Electronic Supply. The power transformer and output transformer are rotated 90 degrees in relationship to each other to minimize hum from their magnetic fields. I put the choke beyond the output transformer and oriented it the way it is in a Marshall Super Lead.

Wiring was done with terminal strips. Red wires are the B+ supply (the bundled wires running down the middle), which I tried to run at right angles to the green wires which are the audio signal. In addition, the B+ and 6.3v heater wires run along the chassis while the signal wires float above it. Shielded wire was used for any signal run over a few inches. Power supply components are on the left, and the preamp circuitry is on the right. Wire is solid core with 600v insulation.