There is no mechanical adjustment on the relay. I think the screw you are
talking about holds the coil in place. I have had a problem with a relay of
that type becoming magnetized. Try reversing the coil leads, that may cure
it. 73, Dan, N5AR
-----Original Message-----
From: amps-bounces@contesting.com [mailto:amps-bounces@contesting.com]On
Behalf Of N3XX
Sent: Wednesday, September 10, 2008 4:24 PM
To: Amps@contesting.com
Subject: {SPAM} [Amps] Vacuum relay adjustment?
Hope someone on the list can help with information about a vacuum relay I
have. I'm working on getting an LK-800 amp back in good working condition,
and one of the problems it has is a T/R vacuum relay that won't go back to
receive after transmitting. If I tap on the relay, it does go back to
receive. The relay is a Jennings RJ1A-26S. On this relay is a screw that
looks as if it is for adjustment, but I don't know what it adjusts. I'm
guessing it has to be either contact spacing or spring tension. I hope it's
for spring tension, and by adjusting this screw I can put a little more
tension on the spring, and it will return to receive when finished
transmitting.
Just thought I would check here and see if someone knows what the screw is
for before I start turning it, not knowing what it is supposed to do.
Thanks for any info.
73,
Tim - N3XX
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