[GreenKeys] Military Dovetron in the rack with my RTTY repeater operates a polar relay

Tom Hunter tomhenryhunter at gmail.com
Sun Jan 2 10:34:10 EST 2022


Paul,

I took a couple pictures this morning.

The first is the Model number of my military Dovetron.

The second is of the output connectors. I chose to use the +- 12 volts for
my polar relay instead of the +- 5 volts.
This is the obvious difference from the civilian unit which keys its
internal loop supply.

If this message does not get too big I will include a picture of my
"Teletype Wall" showing the polar relay. It is mounted so the armature
moves sideways instead of up and down so gravity does not bias it.


Tom N3CRK
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