Thanks for the input on relays. Interestingly, I got more messages
asking for a summary than I did with actual input.
The overwhelming winner was the Radio Shack 275-218 DPDT, 12-V coil
relay with 10-A contacts, which sells for about $6.99. A couple of
people also mentioned the Potter & Brumfield RKS5DW-12, which is an SPDT
relay that sells for about the same price from Newark. Both of these
have years-long reliability records according to people whose opinions I
Also, don't forget that you can run 120-V ac relays on 24 V dc--but be
aware that their switching time may not be as fast as it is at 120 V ac.
(This is no problem for an antenna-switching relay, of course.)
Thanks for all the feedback.
--73, Rus, NJ2L
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