[GreenKeys] Polar Relays

[Tom Hunter]

Actually I believe the work is "bistable" meaning it is stable in either of two positions.

I am attaching a picture of the contacts of a 255A. Click on the thumbnail to get the full size photo. This relay is out of adjustment.

I have a  14 MB pdf the adjustment procedure from the 1971 edition of "The New RTTY Handbook" by Byron Kretzman. But it seems too big to attach.


Tom   N3CRK
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