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[Amps] Vacuum coax T/R relay

To: amps@contesting.com
Subject: [Amps] Vacuum coax T/R relay
From: "John Lyles" <jtml@losalamos.com>
Reply-to: jtml@vla.com
Date: Thu, 4 Oct 2007 13:00:01 -0600
List-post: <mailto:amps@contesting.com>
Pat
My old Jennings catalogs show nothing like that. Two things that don't sound 
like Jennings, at least from the packaging you described. Jennings used either 
a circulator connector for their larger relays, or turret pins for the small 
BNC and type N. They didn't have any with SO-239 connectors. Also, they had two 
main configs, a box 1.35 x 2.2 x .75 inch with three BNCs on the narrow side 
(1.3x0.7),or a box that is more square, with connectors on three of the narrow 
sides. Of course it could be a special that they made, or could be a Jennings 
inside of a box made by someone else. 

Did you find that National R175A choke. 
73
John
K5PRO




> For sale:
> A Vacuum Ant Relay,  SO-239 connectors x 3; Labeled COM, N.O. N.C. , machined 
> aluminum relay capsule enclosure, with two screw coil terminal block. Coil 
> terminals inside housing labeled L1; L2  40  ohm DC coil resistance Diode 
> across coil terms, switches with 12 volts, but may still be 24 volt coil, 
> unknown for sure.
> 
> Cant find a P/N or Mfg name, but it is in a 2 x 3.25 x 3.0 machined aluminum 
> block enclosure, professionally done and painted battleship gray
> the SO-239s have a casting number on their flanges: CPH 4919, SO-239 Chicago, 
> Amphenol
> Sorry, No Camera for a picture, and does not match available pics on vacuum 
> relays on the web.
> If you can ID this relay as to make and model, it would be appreciated.  
> Believed to be made by Jennings.
> 
> If you can ID and/or are interested in buying, make an offer...
> 
> 
> All the Best, 73,
> Pat Barthelow     aa6eg@hotmail.com

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