Thread: DuMont RA-108 Mansfield inductuner
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  #11  
Old 01-05-2016, 12:44 PM
Gregb Gregb is offline
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Join Date: Jul 2014
Location: Edmonton Alberta Canada
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Did you get that correct, the plate voltage is -140v? There is no way that tube will work with a negative voltage on the plate. Have to try and figure out why it is negative.

Gregb
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