[Milsurplus] Australian AWA airborne HF Radio HAC-1 from 1955

[Michael Kane]

I know this is a bit of a longshot , but does anyone have any info on the
Australian AWA HAC-1 transmitter/receiver, Control unit HCC-1 and power
supply HPC-1. This is a 20 valve (tube to our cousins) HF airborne AM
radio. Transmitter was 2x 6146 and modulater 2x 6146, the receiver was
powered directly by 28 volts. This is an extremely well built unit, typical
of AWA, and old radio techs tell me it was very reliable. I am going nuts
trying to work out the separate receiver and transmitter motor switching
control lines.These were first used in 1955, I believe mainly in civil
airlines.
                                                  Thanks.....Michael  VK4ZKT