[Milsurplus] AN/GRM 11

[Al Klase]

Joe,

A couple of clues:

https://nationalstocknumber.parts/6625-01-192-6990  Says its a test set 
for AN/GRC-20.

https://aerospace-communications.com/radio-and-television-equipment-non-aircraft/radio+set/707167-600 
indicates AN/GRC-20 is part of AN/MRC-144

https://fas.org/man/dod-101/sys/ac/equip/an-mrc-144.htm

Guess I still don't really know what it is.

Regards,
Al

On 3/5/2018 8:00 PM, Joe Munson wrote:
> I obtained a AN/GRM 11 Transmitter made by Stromberg Carlson i 1957 
> Seriel Number 21.  I has 5 channels in the 1600 Khz range plus a 
> positioin on the channel switch for the crystal socket on the front 
> pannel.  It has a Large 3 inchg diameter bty 10 inch long loading 
> coild pounted in the cover along with a large hank of wire .  It has a 
> 12 volt 500 volt switching power supply, with tubes 12AG5 and 12UU7.  
> Sparte tubes mounted in cover.  There is a motor turning a coded wheel 
> to key the trtansmitter.  % diffewrent codes Plus hand key.
> So what is it and what was it used for.  I would guess some sort of 
> beacon.  I can find no information on it on the internet.
> Any help would be appreaciated.
> Joe Munson
> WQA4VAG
> 513-919-1210
>
>
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-- 
Al Klase – N3FRQ
Jersey City, NJ
http://www.skywaves.ar88.net/

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