[MRCA] Signal Corps film

[WA5CAB at cs.com]

Although I don't have manuals on all of the models, RAO ran up to RAO-9.  In 
SHIPS 242A, RAO is listed as NC-100A, 1938, and Obsolete (as of January 1945). 
 The others don't have any National number shown.  

In a message dated 7/14/2008 3:14:50 PM Central Daylight Time, 
jeepp at comcast.net writes: 
> >>They might be National RAO's  They are similar to the NC100xa and had 
> >>a hefty added RF stage. (as per Raymond Moore's Communications 
> >>Receiver book)
> >>....Steve...N8YE
> >>
> >>
> >>--- On Mon, 7/14/08, Rob Flory <robandpj at earthlink.net> wrote:
> >>
> >>
> >>There is one shot of army personnel copying messages while
> >>seated at typical shipboard desks.  Maybe troop radio on an
> >>AGC.  I can't figure out what radios are being used. Anyone got an idea?
> >>
> >>http://www.realmilitaryflix.com/public/501.cfm
> >>
> >>RF
> >>_______________________________________________
> >>  
> >>
> >>   
> >
> There must be two variants of this receiver, at least. The version(s) 
> used (at least as indicated in a photo) in aviation ground usage had 
> both the volume and RF Gain controls mounted behind the panel and 
> required screwdriver adjustment.  It looks like this one has but one 
> control out of reach of the operator.  The RAO looks quite different, 
> inside,  than my NC-100XA.  The front panels share some similarities, 
> though.
> 

Robert Downs - Houston
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