[Milsurplus] RM-52 for AR-8510 RCA LF Receiver

[Richard]

Ops.  The RM-52 is an army remote control unit.  It has two line 
terminals and phone and mic jacks.  It's mentioned in the Surplus Radio 
Conversion Manual Vol. 3, briefly, for conversion to a phone patch.  The 
battery control panels in the 3U and 4U consoles were labeled RM-2 ans RM-4.

Richard, AA1P

The RM-52 is some kind of battery control panel, and would have been 
used in an RCA 3U or 4U console, probably.  The AR-8510 was used in 
consoles, and also in a box with shock mounting for separate use.  I 
have one, and it works very well.  A few years ago I worked a Canadian 
cross-band, 80 to 630 Meters, listening on the AR-8510.  It was nice 
hearing to it talk to me.  There isn't much intelligible to listen to 
down there now.  Aircraft beacons are disappearing, and the long-wave 
broadcasting stations from Europe are usually too weak to be 
intelligible.  I use it to listen to the annual Christmas Eve broadcast 
from SAQ on 17.2 Kc.  (SAQ, the last operating rotating machine 
transmitter, in service since 1924, in Sweden)

Richard, AA1P

On 4/24/19 3:29 AM, Hubert Miller wrote:

I found a thing labeled "RM-52" and "NPR-295" for the RCA receiver 
AR-8510. This is a panel only type thing with a

voltmeter and I am wondering if it was intended to mount into some kind 
of console, or has it been robbed of its own

cabinet? Did the AR-8510 come in two configs, one for installation in 
large mounting and another as standalone with its

own shockmounts ?

I am unfamiliar with the "NPR-" designation; anyone know what that 
refers to ? I did not get the

receiver itself and have scant chance of actually finding one, so this 
item is actually pretty useless to me. Thanks- H M

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