[Milsurplus] US Army Historic SSB Radio Set AN/GRC-108 (XC-1)

[Don Davis]

Jim:

The Gates power amp sounds like an HFL-1000.  A fairly common com'l amp from
the late 50s or so.  I have 2 of them on-line here.  Does this have the 150
# power supply & cables?  Please send pix & if it's an HFL-1000 I can supply
documentation, etc.

73s

Don Davis   AD6PB


----- Original Message -----
From: "Jim DiMauro" <jfd@warwick.net>
To: "Milsurplus" <milsurplus@mailman.qth.net>
Sent: Tuesday, April 23, 2002 5:24 AM
Subject: [Milsurplus] US Army Historic SSB Radio Set AN/GRC-108 (XC-1)


> I just purchased some military radio equipment from an estate.  The
> equipment was part of a US Army experimental single sideband radio set.
The
> equipment came with a set of Army photos.  One of the photos shows a name
> plate on one of the walls of the shelter.  The plate reads: Signal Corps,
US
> Army; Experimental Single Sideband Radio Set; AN/GRC-108 (XC-1);
Fabricated
> by Sacramento Signal Depot, Sacramento 1, California.
>
> The photos show a small, truck-mounted shelter.  The complete setup inside
> the shelter included two teletype machines, two R-390/A receivers, a
product
> detector, a frequency shift converter, loudspeaker LS-206A/U, a SC-910E
> exciter, a receiver stabilizer, a Gates RF power amplifier and a B&W
39-1000
> antenna tuner.  I have one of the R-390/A's, the SC-910E exciter, the
Gates
> amplifier, the loudspeaker and the B&W tuner.  The serial numbers of the
> exciter and the loudspeaker are visible in the photos, and they match the
> equipment I have, so I have some of the actual gear from this historic
> station.  The serial number of the exciter is #1, manufactured by General
> Dynamics.
>
> I need help with any documentation or information that may be available on
> this station.  I have the manual for the exciter, but there is no
> information on the Gates PA.  Other than the Gates logo on the front
panel,
> there are no model or other identifying numbers on the unit (I have only
the
> RF deck; the power supply that sat in the rack below it in the photo had a
> model nomenclature  plate, but it is unreadable in the photo).  The amp
runs
> a 4CX-1000A.  I took a couple of photos of the PA that I can e-mail to
> anyone who might be able to help.  I'd hate to see this historic equipment
> rot away, or even be cannibalized for its wealth of parts.  I want to
> restore it and put it on the air, but I need information on the Gates
> amplifier, particularly a print and operating instructions.  I can easily
> build a power supply, but I need whatever info I can find.  Can anyone out
> there help, or offer any leads?
>
> Jim
>
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