[GreenKeys] Loop Supply

Jim Haynes jhhaynes at earthlink.net
Fri Dec 14 19:12:58 EST 2018


On Fri, 14 Dec 2018, John, W9DDD wrote:

> 
> I'm foggy about the specifics of the 15 (about 57 years of cobwebs), but you
> show in your drawing what appears to be magnets wired in series instead of
> parallel, which would be normal for 60ma.  You can go 30ma with parallel
> connection, normal was 20. 
> 
I believe you're talking about the holding magnet selector.  The pulling
magnet coils were normally in series, but I've seen some ex-military
machines with a printing on them saying there is the alternative series
or parallel connection for 20ma or 60ma.


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