Zenith tv.
Thanks. I'll remember that. I was going to guess something in vertical sync circuit, though, it wasn't really rolling. By the way, found that in 16" Zenith, and RCA tv's, h.v. cap on 1B3 tends to short, and start arcing. I am sure your know, but, in case someone doesn't, these sets ran on a voltage of 115-117 volts a.c. Our present 125 volts makes these sets run extra hot, and B+ is often very high. To cut this, I put an appropriate wattage resistor between rectifier, and first filter. That puts B+ in better ballpark, but, then, of course, tube filaments are usually 6.3, and the higher voltage, depending on set, can put voltage as high as about 8 volts. This could also be what made your hv resistor fail.
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