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May 22, 2011 at 7:10 am #5458
sthebluesman
Participant

I think I found an answer from a response to my video on YouTube. The Mojo760 PT does not have a center tap on the 6.3v heater supply so it is necessary to use 100 ohm 1/2 watt resistors on each filament wire to ground. I will let you know if this solves the problem. The Weber PT in the book has a center tap on the 6.3v that goes to ground and is also in the schematic.