[Milsurplus] Question about GRC-109

[Mike Morrow]

Ron wrote:

>I've found a set that appear to be in like new condition.
>I've done a Google search and everything I find shows
>there being 3 units, but the set I've run across has
>4 units.

An on-line manual for the AN/GRC-109 is at:

  http://bama.edebris.com/manuals/military/grc109/

You have units of the AN/GRC-109A, which are identical to the
AN/GRC-109 except for using cases with clasp-fastened covers
rather than screw-fastened.  The AN/GRC-109A was made under a
1969 contract by Oklahoma Aerotronics.  It was the last version,
and it was used by the US Army.

The large power supply is PP-2684A/GRC-109, the smaller is
PP-2685A/GRC-109.  There may also be some other power supply
gear (check manual) lurking in your hoard.  Look for the 
hand-crank generator G-43/G and the small voltage regulator
and junction box CN-690A/GRC-109 that goes between the G-43/G
and the T-784A and R-1004A.

>Any advice as to what I've found and what they might
>be worth would be much appreciated.

The AN/GRC-109* has quite a following and is considered a
popular unit.  On ebay your set would likely pick up bids
well above $300.  The R-1004A/GRC-109 is the hardest unit
to find and sometimes can bring that much by itself, at least
in pre-Obama-Depression days.  There's also a standard parts
and accessory case that does with the set, usually missing.

Mike / KK5F