( I may have my flow direction backwards, I can't remember off the top of my head which it is, but you understand my meaning.) How does the transformer 'know' what the phase is? And why? Is the start to the center the 'push' part and then the center to the end is the 'pull'? If DC current is flowing from the cathode through the tube into the windings out to the B+ and back to ground, how or why should it matter that two AC signals from the phase inverter can be affected in this way? The secondary windings do the same but at a ratio that drops the impedance to what it's designed for, like and 8 ohm speaker the 'usual' green and black wires. This is the 'usual' red wire that goes to the B+ power supply. There is a center tap wire coming from the middle of the windings, if there are 20 turns, the center would be at 10 turns.
These are the 'usual' blue and brown wires going to the tube plates. The primary windings start, go around and around and finish.
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