[Boatanchors] US Navy Shor-Wave Receiver History

[Al Klase]

Gang,

My recent work restoring an RAL to operation got me to pondering the 
history of SW communications receivers in the Navy.  It kind of goes 
like this:

RG, 1925,  1-20MC, see:  http://earlyradiohistory.us/1963hw28.htm
RAB, 1931, 1-30MC,  Superhet, Weighs 455#,  See:  
http://www.skywaves.ar88.net/commrx/RCA/RAB/RAB.html
RAL, 1935 .3-23MC,  TRF-Autodyne but much lighter than RAB. See:  
http://home.earthlink.net/~navyradio/id3.html
RBB/RBC, .5-4/4-27MC, Superhets, late 1930's

Does anyone have info on or pictures of the RG?
Have I missed anything important befoer the RBB/RBC?

Regards,
Al

-- 
Al Klase - N3FRQ
Flemington, NJ
http://www.skywaves.ar88.net/