[Milsurplus] Early Navy receiver multicoupler

[gl4d21a at juno.com]

Group:

These are questions for which I have been seeking answers for some time now.  It seems everyone who operated multi receiver sites in the 30s and 40s has developed amnesia.  Rhombics and 600 ohm line could easily tolerate resistive dividers feeding the 200 ohm input Z of receivers of the day, but little documentation and zero memory seems to remain.  Thanks for turning this up, Nick.

73,
George
W5VPQ

---------- Original Message ----------
From: Nick England <navy.radio at gmail.com>
To: Military Surplus Mail List <milsurplus at mailman.qth.net>
Subject: [Milsurplus] Early Navy receiver multicoupler
Date: Tue, 6 Jul 2010 17:52:21 -0400

In case you are curious about such things -
Manual for 1943 vintage 4-output Navy multicoupler CKB-50172 is now on
line - link at
http://www.navy-radio.com/rcvr-coupler.htm
There's also a data sheet on the RXA which had three 10-output multicouplers
Both made by Hoffman

I've seen a similar vintage Signal Corps unit, also using 6AC7's but
with Western Electric instead of Navy coax connectors.

Before these, I guess installations used ?? ohm coax with resistive
decouplers for each receiver? I think that's what I have seen on WW2
battleships?  And maybe open wire with resistive decouplers for some
installations....Rob? Anyone?

cheers,
Nick
www.navy-radio.com
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