Acrosound Amplifier Circuits

These are circuits from the 1955 Acrosound transformer catalog. The circuits are updated using current available transformers, component values and have a parts list. Building using only a circuit drawing as guide requires some amplifier building experience.

6L6 CIRCUIT

6L6 Push-Pull
Center-Tap Output Transformer
6SL7 Driver/Phase Inverter

KT66/807 ULTRA-LINEAR

Williamson Type Circuit
Pentode or Triode Output Option
6SN7 Driver/Phase Inverter

6V6 CIRCUIT

6V6 Push-Pull
Ultra-Linear or Tetrode Option
12AX7 Driver/Phase Inverter