[Milsurplus] Milsurplus Digest, Vol 70, Issue 40

[Richard Spargur]

The Army agency I worked for used a lot of 2174A Rycom (Not to be confused
with the RACAL R-2174A) Selective Voltmeters, made by Rycom Instruments.
Other receivers were used, but I can't remember any of the nomenclatures.
Other receivers were used if the application required very high stability of
the tuning such as receiving timecode.  It is a receiver with, I believe,
tunes 10 Khz to 600 Khz (Maybe 800 Khz).  I don't remember exactly. 

For the trivia does anyone know what Rycom stood for.  Do any of you
ex-intel users know?  Give up?  Railway Communications Inc., Raytown,
Missouri.

Richard Spargur
K3UI
_._   ..._ _   .._   ..
 
Message: 2
Date: Fri, 26 Feb 2010 16:17:42 -0500
From: Nick England <navy.radio at gmail.com>
Subject: Re: [Milsurplus] [Boatanchors] what superseded/replaced the
	R-389/URR receiver ?
To: Pete Lancashire <pete at petelancashire.com>
Cc: Boat Anchors List <boatanchors at mailman.qth.net>,
	milsurplus at mailman.qth.net
Message-ID:
	<ed0171f41002261317g27491975lfe290298a80c2624 at mail.gmail.com>
Content-Type: text/plain; charset=ISO-8859-1

I don't know about the US Army follow-on to the R-389.

The US Navy used some R-389's (15-1500kc tubes) shipboard and at shore
stations.
In the Navy, the AN/WRR-3 (14-600kc tubes) was pretty standard by the late
60's. The AN/SRR-19 (30-300kc nuvistors) was also used where high stability
for multiplexed RTTY was needed. The modern replacement for both of these
was the R-2368(A)/URR which is essentially a Harris
RF-530(A) (10kc-30mc, integrated circuits).

I don't think there was any interim using discrete transistors. There was a
CV-5086 14kc-2mc converter for the R-1051, but they are very rare and I
don't know whether they were widely used.

cheers,
Nick K4NYW
www.navy-radio.com

On Fri, Feb 26, 2010 at 2:40 PM, Pete Lancashire <pete at petelancashire.com>
wrote:
> what was its 'replacement' and was it a transistor based receiver ?
>
> thanks
>
> -pete