11-02-2014, 09:51 PM
Morzh, why do you want 50 V across the series heater string? The total heater voltage is 68 V ( 25 + 25 + 6 + 6 +6 )
http://www.nostalgiaair.org/PagesByModel...016853.pdf
http://www.nostalgiaair.org/PagesByModel...016853.pdf