[GreenKeys] Mercury Relays

[Tom Hunter]

Jim,

If your relays are Western Electric you will want to download this:

https://www.telephonecollectors.info/index.php/browse/bruce-crawford-library/western-electric/1488-relay-mercury-275-276-data-bc/filehttps://www.telephonecollectors.info/index.php/browse/bruce-crawford-library/western-electric/1488-relay-mercury-275-276-data-bc/file

If you have any 275D relays., they close on 20 mils. I put the coil in a 30 mil loop (from a TU) so it is not operating on the edge and can use the contacts to key a 60 mil loop. My 60 mil loop runs from the 60 ml 28ASR in my radio building about 150 feet to my den where my radio, TU and 20 mil model 32 are.

The 60 mil supply is at the radio building end. The radio building is not my hamshack, that is where my three repeaters are located.

Tom   N3CRK