I am still looking for info on this adjustable polar relay. I've repaired this one and made a short video.
http://k4che.com/Tempvideo/Polar%20Relay%20Adjustable/Adj%20Relay.mp4
k4che



http://k4che.com/Tempvideo/Polar%20Relay%20Adjustable/Adj%20Relay.mp4