I'm new to tubes but not to electronics. It looks like the common arrangement for rectifier tubes is having the cathode and one side of the heater to a common pin (8 on a 5Y3GT). What I'm struggling to understand is what keeps the rectified output voltage from feeding back into the transformer winding providing the heater voltage as it's much lower (5 or so vs 200 plus) Maybe a phase thing, but looks like half of the phase would be cancelled out.
Explanations or what am I missing?
Craig
Explanations or what am I missing?
Craig