Ian E. Abbott:
1980-ish Fender Pro Reverb
Ian E. Abbott:
Pro Reverb Chassis
Ian E. Abbott:
Original filter capacitors
Ian E. Abbott:
New filter capacitors
Ian E. Abbott:
Original "bias balance" circuit
Ian E. Abbott:
True "bias adjustment"
Ian E. Abbott:
Bias supply resistor replacement
Ian E. Abbott:
Pro Reverb chassis, ready to play
Ian E. Abbott:
Pro Reverb, 10 kHz signal
Ian E. Abbott:
"Vibrato" (tremolo) circuit in action
Ian E. Abbott:
1960s Japanese Teisco guitar amp
Ian E. Abbott:
New capacitors
Ian E. Abbott:
New tubes
Ian E. Abbott:
Four small speakers
Ian E. Abbott:
1960s Japanese Teisco guitar amp