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One last tweak: Had to tune the modulator's 4.5MHz FM sound subcarrier frequency. It was a little off, which caused visible beats with the chroma subcarrier (I made it switchable: color or B&W). Now it works well. Looks like the best improvemsnts came from using a dedicated voltage regulator, tuning the subcarrier, using well shielded audio and video lines.
Can you elaborate on how you made it switchable: color or B&W?
12-19-2015, 11:30 AM
Looks like the best improvemsnts came from using a dedicated voltage regulator, tuning the subcarrier, using well shielded audio and video lines.
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