[ARC5] Hmmm...OT....AN/GRC-109 vs RS-6

[Mike Morrow]

FWIW, here are URLs to manuals for these sets:

AN/GRC-109
  http://radionerds.com/images/b/bd/TM_11-5820-474-14.pdf

RS-6
  http://www.nj7p.org/Manuals/PDFs/Military/RS-6%20Unk%20NJ7P.pdf
  http://www.nj7p.org/Manuals/PDFs/Military/RS-6%20E1%2015-May-53%20NJ7P.pdf

The last version of the AN/GRC-109 consists of:

R-1004A/GRC-109, T-784A/GRC-109, PP-2685A/GRC-109, CN-690A/GRC-109A, etc.

These have the covers affixed by side clasps.  These were made by Oklahoma Aerotronics on 1969 contract DAAB 05-69-C-1302 (Pretty late date for such old technology).  Of minor note is RECEIVER on the nomenclature tag for the R-1004A is mis-spelled RECIEVER.

> I own an AN/GRC-109, but have never seen an RS-6 except in photographs.
>
> The RS-6 is the much later minaturized version of the earlier RS-1...

I would not say that the RS-6 is "much later" than the RS-1.  :-)  The RS-6 manual errata (link above) is dated 1953, likely just a few years after the RS-1.

I have all these common miniature HF radios, including the AN/PRC-64, the AN/TRC-77, and an almost complete RT-655/TRC-88 (USB and CW version of the RT-654/TRC-77.  My personal favorite it the TAR-224A, 2.0 to 24.0 MHz (A1, A3) crystal-controlled 20 watt transmitter with auto antenna tuner.  These were all solid-state and made in 1971 by AVCO Electronics.  Very interesting set!

  http://www.cryptomuseum.com/spy/tar224/

Mike / KK5F