Vox Slave Driver - serial number 1001
"Vox Sound Limited", mid 1971
The design of these amps marks a significant advance over the earlier solid state range (Conqueror, Defiant, Supreme), greater negative feedback improving the sound.
Thanks to Pete Kappa for the schematic drawings of the circuit below:
Preamp with layout.
Preamp output with modified circuit.
Power section driver board
Overview of the supply.