Quote:
Originally Posted by old_tv_nut
Horizontal output/sweep is a switching circuit, not a linear amplifier, and the current is not set by the tube, but by the B+ supply voltage and the yoke/flyback inductance (which is how you get a sawtooth sweep current: constant voltage across an inductor). If the current was regulated by HO tube conduction, the tube would be vastly overheated and burn out. If you must have the AGC and burst gating pulses from the flyback, I think your best bet is to leave the circuit as it is and let the regulator do its job.
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That's true. However, if I could get the tube to conduct less time,
the inductance would charge up to less current. Then, when the tube shut off, the flyback would go up to a lower voltage. The average tube current would also go down.
I think I should simulate the circuit and also try playing
with a much cheaper tube TV!