[Milsurplus] Unknown Agent Set

[Brian Harrison]

Hi Al,

That’s the PRC-52, "Modular Radio Station"

http://militaryradio.com/spyradio/modular.html <http://militaryradio.com/spyradio/modular.html>

I traded for a set of three 3-8 Mhz modules a few years ago (no frame or ps) but later traded them off to a collector friend of mine who already had a complete set with ps and frame in canvas bag (the only ones I’ve ever seen or heard about besides yours now).

Here are the pictures - https://drive.google.com/drive/folders/12aY2XHdzFPl8QYb4Kv2f4nxtI8Qg98cv?usp=sharing <https://drive.google.com/drive/folders/12aY2XHdzFPl8QYb4Kv2f4nxtI8Qg98cv?usp=sharing>
What are the serial#s of your modules?  My rx was sn#11, tx was sn#19 , and antenna tuner sn#9

The PRC-52 is mentioned as part of an early PRC-64 technical manual page 15, copied below:
(This document came from the web  - most likely CIA documents - but I can’t find the url at the moment so I’ll email the 11mb pdf to you directly)

Here’s a later PRC-64 tech manual from the web that no longer mentions the PRC-52:  https://apps.dtic.mil/dtic/tr/fulltext/u2/464299.pdf

best,
brian
kn4r
...
xiv

CONVERSION OF AN/PRC-52 FOR JUNGLE PATROL RADIO SET

1. An interim solution to the current (1962-63) problem of obtaining an efficient light-weight pack set may be the adaptation of components of the AN/PRC-52 to form a single unit radio. It is possible that a number of comparatively simple fitments would provide an acceptable interim patrol pack-set.

2. The components of the AN/PRC-52 which would be required are: Transmitter, T-797
Receiver, R-1026
Coupler Antenna, CL-863/R

Adapter, Battery Terminal U/218/Frame,LP

3. A preliminary appraisal of the problem indicates that the probable work required will be:

a. Construction and fitting of a modulator unit.

b. Fitting of a new dry battery adaptor box to provide internal location of 22-1/2 volt dry battery.

c. Connection of lightweight handset and waterproof external morse key.

d. Housing units in lightweight water-proof carrying case.

e. Provision of suitable antenna.

4. If the adaptation proved successful the result would be a radio set with the following characteristics:

a. Frequency range, 3 to 8 megacycles. b. Channels available - 4.
c. RF power output - 5 watts.
d. Modulation - Voice, CW.

e. Keying speeds - up to 300 words per minute. (Using external keyer unit).

f. Size (approximately) - 6" high x 5" wide x 5" deep.

g. Weight of complete station including spare battery - less than 7 pounds. 



> On Jun 4, 2020, at 1:37 AM, Al Klase <ark at ar88.net> wrote:
> 
> Gang,
> 
> Anybody have info on this recent donation to the radio technology museum?  It's clearly a relative of the Delco 5300.
> 
> http://www.skywaves.ar88.net/SPY/delco/unknown.html <http://www.skywaves.ar88.net/SPY/delco/unknown.html>
>  -- 
> Al Klase – N3FRQ
> Jersey City, NJ
> http://www.skywaves.ar88.net/ <http://www.skywaves.ar88.net/>

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