🚀 go-pugleaf

I've managed to obtain at a rediculously low price
a motherboard for the grand old video game "Robotron: 2084".
I know it generates analog R, G, and B signals, and separate TTL
horizontal and verticle sync outputs. Fine and dandy. Setting aside
for the moment concerns about losing definition, is there a way
(I know it won't be easy) to convert this signal into an NTSC
format? Monochrome will do, by the way.

If not, all is not lost. I know that the Apple IIgs monitor is an
Analog RGB monitor, but it needs a composite sync signal. My bright
idea is to send the TTL H and V sync into the control pins of a pair
of CD4066 "digital switch" elements, whose inputs attach to
a pair of pots, and outputs connect together and go to the
composite sync output. Will this plan work?

-- 
Nick Sayer              |    Official Scapegoat for the    | RIP: Mel Blanc
mrapple@quack.sac.ca.us |      MC68HC11 Mailing List.      |   1908--1989
N6QQQ                   |    To subscribe, send mail to    |  May he never
209-952-5347 (Telebit)  | mc68hc11-request@quack.sac.ca.us |  be silenced.