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Old 6th Oct 2019, 1:16 am   #133
Argus25
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Join Date: Oct 2016
Location: Maroochydore, Queensland, Australia.
Posts: 2,679
Default Re: Bush TV22 with TC184 B3 converter.

One other thing, obviously , just as applies to the V osc stage, the power supply to the video stages and sync separator must be relatively free of hum modulation, otherwise the signal from the sync separator could have hum (amplitude) modulation on it, which will still be there after the vertical integrator and could possibly upset the interlace if the form/shape of the V sync pulse is getting altered by hum voltages. Probably all of these old sets are better off with new electrolytics in the power supply sections.
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