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Old 03-29-2010, 03:26 PM
Dennis Hetland Dennis Hetland is offline
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Join Date: Sep 2009
Location: Salem, OR
Posts: 304
Dennis Hetland is an unknown quantity at this point
I was reading this thread backwards. I found the diagram and it looks like his control voltage is DC and he's not concerned with element life. It's an annealer. So to control the MDR he used an SSR.
Maybe in the old days they had fewer options on controller and relay voltages.
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