[Central-Electronics] Relay Question on Early CE Exciters

Lynn Fisk k5lyn at earthlink.net
Mon Apr 1 16:06:47 EDT 2013


Gentlemen, I'm trying to get up and running, a very modified 10B exciter, and I plan to use it to drive a home brew grid driven pair of 4-400s that I did not build either.  I don't have enough relay contacts to make it all work.  I'm confused by the schematics and the socket on the later exciters which supplied 110V for an antenna relay.

My 10B schematic states that back panel contacts 8, 9, 10 (spare contacts) should be used for changer-over realy.  And contacts  4, 5, 6 for speaker/bias issues.  Yet that same schematic shows a set of relay contacts 4, 5, 6 connected to nothing.

And my 20A schematic also shows contacts 4, 5, 6 duing speaker and bias duty, but this one shows a set of contacts 4, 5, 6 now supplying 110V relay voltage to a socket on the back panel.  Are there two sets of relay contacts numbered 4, 5, 6?  What am I missing here?

I need to fire up a 110V antenna relay with no extra contacts, and I need all the contacts I can get.

Thanks, Lynn (K5LYN).


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