🚀 go-pugleaf

I will answer a subset of your questions.  I hope someebody else will fill in
the other answers.

"1.  Has anybody got C source for uudecode?..."
I have both encode and decode programs in c which I have not tried but which
were said to be very standard so that they will work with most compilers and
systems.  I am forwarding copies under separate cover.

"2.  Is it possible to produce composite color output with an ST rigged to
produce only RGB?..."
I am not familiar with what's on the ST board, but if they ship some with
composite or TV modulator outputs then probably there is a place on the board
for an "NTSC encoder" chip.  If so, you might buy the part from a service
dealer and install it.  You might even get their TV modulator also and not
bother with the VIC-20 one.  ... On the other hand, if I am wrong and there is
no slot for the encoder, you can still build up one externally.  In fact, I am
trying to persuade a cousin of mine who is an expert video circuit designer
to develop and market such a gadget (as well as the other side of the coin,
the NTSC to RGB converter to let ST owners run their VCR through the ST's
monitor).  The more clamor for such devices I can show him, the sooner he is
likely to take me seriously and develop these products.

One person who would know for sure about installing the device on the board
would be Paul Swanson of Nite Lite Systems.  He can be reached via BBS at
(617) 663-4221.  Nite Lite Systems is the manufacturer of the fairly
well-known Nite Lite BBS system for the 8-bit Atari computers, and is also an
ST sales and service dealer.  Paul is both proprietor and technical expert on
hardware and software for all Atari computers.  If such an installation can be
done, he can do it for you.

-John Sangster / jhs@MITRE-bedford.arpa