[GreenKeys] TTY driver software?

[Jim Haynes]

I have an old laptop that I use for TTY testing.  There is a very old DOS
program named RTTY12G that was originally written to turn a PC into a
"glass teletype".  Old computers with Real COM ports can handle 45.45 baud
and 5-level code with no difficulty.

I formatted a floppy disk, which gives you a rudimentary DOS, and added
the RTTY12G program to it.  So when I boot from that floppy I've got a
DOS system running the program.  I also have it on a bootable CD ROM -
don't remember how I got it that way, but it is.  Trouble with that
is that you can't save anything to the CD, but works on computers that
don't boot from floppies.

Something I did years ago was a PC setup with that program on the hard 
drive for use in a museum, driving a Model 15 RO former Associated Press
machine.  I don't think they ever bothered to really learn how to use it,
but the idea was that they could have the machine spewing out "hot-off-the
wire" news, but for the period of time they were exhibiting in the
museum.

One time I did this was at a museum in Santa Cruz, California where they
were doing an exhibit on the Japanese in Pajaro Valley.  For "news" copy
I went to the newspaper files at the library and got a bunch of stories
from right around the time of Pearl Harbor.  Stories about the rising
tension between U.S. and Japan, and white people in California wanting
the Japanese people rounded up and confined and their farms confiscated.
And then the attack and the actions taken against the Japanese people
in California.  (There were also some issues about the Italian community
in the area.)

But for now and old Dell laptop, dirt cheap but still works, makes a fine
nearly portable test set for Teletype machinery.  (nearly portable because
the loop power supply and RS-232 to loop driver have to be dragged along
with it.)