SeaGeeLog - CGA/RGBI to analog converter board

Friday, May 03 2019 @ 15:38 CEST

Contributed by: tingo

SeaGeelog: CGA/RGBI to analog converter board.

This circuit is designed to convert a standard TTL level CGA/RGBI signal to analog RGB voltages. I have tested it with the output from my Commodore 128. It does *not* do any scan doubling or conversion to VGA frequences. The output will still be at the CGA/RGBI frequencies which works with old Apple or arcade monitors. I'm using a GBS-8200 clone to convert the SeaGeelog output to a VGA signal.

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