1968 MkII Dual Channel Tube Compressor

The original Drawmer 1960 used a tube stage at the front of the
compressor, whilst the 1968 MkII utilisies a J-FET (Field Effect
Transistor) gain reduction circuit that operates faster than an
opto-isolator. The compressor uses a 12AX7 tube makeup gain amplifier
where you can add, with the Output Ga...