[GreenKeys] Stevens-Arnold Polar Relay

[Don Sentz via GreenKeys]

I've had this relay in my junk box for at least 20 years. I found nothing on internet about it.

I finally tested it a few weeks ago, to determine the pin-out. The attached test report has a photo and a pin-out diagram. 

The report can also be viewed or downloaded from https://www.scribd.com/doc/273306282/Polar-Relay-for-Legacy-Teletype-Applications

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