[Milsurplus] OA-65-A/MRC-2

[W7QHO at aol.com]

In a message dated 6/14/06 5:11:32 AM, wf2u at starband.net writes:


> one O-59A/MRC
> Oscillator-Amplifier, and 2 RA-20 rectifiers
> 

Actually, the OA-65(*)/MRC-2 receivers used the RA-20-A and RA-20-B power 
supplies.   The 
main difference from the common RA-20 was the addition of an 0A2 voltage 
regulator for the HF oscillator and BFO in the Channel A receiver and the BFO in 
the B receiver (which had no HF oscillator).   These two later power supplies 
also included a spare plug-in filter cap which was connected to B+ through a 
100K ohm resistor to keep it formed until needed.

(From TM 11-850 C 1)

Dennis D. W7QHO
Glendale, CA