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02-12-2022, 09:16 PM

old_tv_nut old_tv_nut is offline

See yourself on Color TV!

Join Date: Jul 2004

Location: Rancho Sahuarita

Posts: 7,784

If it were constant, I would say look for a horizontal drive or horizontal efficiency adjustment, but since it goes away after warmup, how about replacing tubes in the horizontal sweep section first. (H oscillator/driver, horizontal output, damper)

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