[Milsurplus] [ARC5] RU/RAT/RAV/RAX vs. GO, 1939 and Later

[Mike Morrow]

I wrote:

> It appears that by the time the RAV and RAX-1 appeared in 1940, the USN
> had dropped any requirement for 12-vdc liaison receiver sets.

I ignored the 1941 RU-18 liaison receiver set.  I guess there must have been some
call for a 12-vdc installation somewhere as late as 1941.  They must have used a
GO-9 or a GP-7 with it.

Mike / KK5F