[Amps] Stuck Powerstat

[jkearman@att.net (Jim Kearman)]

I got a 10-amp 240-V Superior Powerstat for a good price at a hamfest, but the 
wheel is jammed and I can't figure out why. I removed the brush and AFAIK 
there's nothing to prevent the wheel from turning, but it's locked partway 
around. Can't see what's keeping it from turning. Feels like a mechanical stop 
is holding it. Thanks for any suggestions.

73,

Jim, KR1S
http://kr1s.kearman.com/
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