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#6
09-02-2014, 01:58 PM
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All of the transformers you have listed and the Thordarson have 3 secondary windings - B+, 6.3V and 5V. No difference between them that I can see.
Look at the schematic on ARF (page 26 of 26) - the damper filament is fed by the power transformer. Cheers,
__________________
Brian USN RET 22YRS (Avionics/Cal) CET-Consumer Repair and Avionics ('88) "Capacitor Cosmetologist since '79" When fuses go to work, they quit! 
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