[ARC5] 13.5 to 20 Mhz ARC-5 on Ebay

[Mike Hanz]

David Stinson wrote:

> The most likely explanation for this particular
> design (we have no first-tier information on
> the RAT's mission)
> was to provide receivers for a Navy
> "G-" series liaison transmitter that worked
> up to 27 MC. 


Dave provides a very complete rundown of the series in this note.  More 
info at http://aafradio.org/flightdeck/RAT.htm for anyone who hasn't 
seen them, /including/ a link to the Type K receivers that Gordon 
referred to in his notes.  In a 1937 drawing that Gordon was kind enough 
to send me, the four Type K receivers are shown as part of a complete 
receiver/transmitter system (similar to the ATA/274N/ARC-5 suite).  The 
drawings and Navy contract number are marked CONFIDENTIAL (roughly 
equivalent to today's SECRET designation) and never purchased beyond 
prototype quantities, so it's no wonder that the complete system is 
relatively unknown.  As far as I know, only the receivers that Gordon 
donated to the Smithsonian still survive from this set.  These are Type 
K Model 2 receivers, somewhat later than the Type K Model 1 that Gordon 
also donated.  I haven't had time to photograph those yet, but they will 
be part of the avionics exhibit planned for next year (hopefully.) 

73,
Mike