/diy/ - Do It Yourself

Anonymous Sat Jan 2 02:40:14 2021 No.1992141 [View]
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>>1992130
There's a VGA to NTSC/PAL converter chip that's really popular. When I look at other people's video synths it's usually that with VCOs,VCAs, etc feeding into it's RGB inputs. These are the same circuits used in analog audio but with opamps fast enough for video. Other people like making modules that deliberately corrupt video signals for glitch effects. Camera-TV feedback loops are also super popular.

>> do you ever use tempco or is heat drift a desired effect?
Heat drift isn't a big issue if you plan out your circuits well. It would be an issue if there were lots of free wheeling high frequency oscillators, but I have everything tied together in a way that keeps things synchronized to video frame rate and the color subcarrier.

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/diy/ - Do It Yourself

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