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CGA/RGBI to analog RGB conversion circuit
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README.txt
SeaGeelog-cache.lib
SeaGeelog.cmp
SeaGeelog.kicad_pcb
SeaGeelog.pro
SeaGeelog.sch
millproject

README.txt

SeaGeelog: CGA/RGBI to analog converter board
Copyright 2014 by Chris Osborn
http://insentricity.com/a.cl/219

This work is licensed under a Creative Commons Attribution-ShareAlike
4.0 International License.
http://creativecommons.org/licenses/by-sa/4.0/

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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