Manfred, the problem is that I'm not designing this circuit, just trying to get it to work more reliably.
I did get an email from Steve, AK4R that pointed to an article by W8JI on techniques to clean relay contacts. W8JI suggested a "safe electrical cleaning" method of passing about 2 amps of current (using a 12v AC or DC supply) through the contacts.
I'm happy to report that this appears to have worked very well.
I setup a 12v power supply with some limiting power resistors to about 1.9A and ran it from the input to the output. My initial voltage drop tests (with a DVM) show that this worked quite well.
Thanks for the reference Steve!!!
--
Mike, W0IH
