[R-390] R-390 Antenna Relay

[Flowertime01 at wmconnect.com]

Rich Baldwin
KD6VK
Durham, NC

Old war stories come to mind.

The R390/A relay is mini BNC.
The R390 relay is BNC.

The R390 relay frame is part of the chassis and not part of the relay.
The R390/A is all one assemble part.

The R390 relay was listed in the parts TM as several parts.
The frame was not a listed part.
Once upon a time I discarded a R390 receiver relay frame.
That receiver is likely still setting on a dead line rack never to operate 
again.

You could do a lot of parts crafting.
If any one has a R390 Relay and the small metal frame around it you can
fabricate the relay leaves from other relay leaves.

You could make a butch plate to go between the R390 and a R390/A relay.
The relay voltage is not a big problem.

You could make up some short mini BNC to female NBC to adapt the R390/A relay 
to the R390 harness cables.


If you are not going to do full break-in with the receiver in a transmitter 
shack,

Then a butch plate and some BNC feed through connectors on the back panel may 
be just as good.

A SO 239 feed through and a BNC to S0 239 adapter on the inside may install 
and look clean.

You can just leave the single end whip open and terminate one of the balanced 
inputs with a shorting plug. Then bring the other balanced input out to a 
feed through on the back panel.

I hope someone can offer you a R390 relay and the frame part.

I do not know how Dave Medley is doing or who is looking after his inventory 
of R390 parts. But a mail to Dave is in order to see if he has a relay and 
frame.

Roger L. Ruszkowski   </HTML>