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Vintage Television and Video Vintage television and video equipment, programmes, VCRs etc.

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Old 11th Nov 2018, 2:02 pm   #181
Argus25's Avatar
Join Date: Oct 2016
Location: Maroochydore, Queensland, Australia.
Posts: 1,671
Default Re: HMV 905 Project

I think a single stage R-C filter for the vertical integrator can actually work well sometimes, it requires a suitable vertical sync injection level into the vertical oscillator, and when that is ideal, the interlace is pretty good. I think when the vertical integrator is better (multi-stage), there is a wider range of vertical sync injection levels that give good interlace.
I have not remedied the issue on my 904 yet.
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