[ARC5] RU2

[WA5CAB at cs.com]

Reference SHIPS 242A:

RU        1930
RU-1     1931
RU-2     1932
RU-2a    1937
RU-3     1934
.
.
.
RU-19    1941

For some models, the GF model they were ordered with is given.

GF        1932     Mated with RU-2
etc.

In a message dated 3/10/2006 4:35:23 PM Central Standard Time, 
signetics at netzero.com writes: 
> >From information I received from Gordon White, I believe the RU-2
> came before the SCR-AA-183. My thinking is as follows:
> 
> The orginal GF set had both transmitter and receiver and was a lot
> like the SCR-183, in that it used the automotive tubes, 5 pin tubes
> such as UY-236 etc and had no BFO.
> 
> The RU-2 was retrofitted to the GF set. Later GF sets were only
> transmitters. 
> 
> I received from Gordon White a copy of a report written in 1931
> detailing the Navy's experience with the RU-2
> 
> If the RU-2 existed in 1931, that implies there was a RU-1 and a RU
> My guess is the RU was pre-1930
> 

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