🚀 go-pugleaf

In article <1992Dec10.113848.1@gallua> CADS_COLE@GALLUA.BITNET (Kevin Cole; Washington DC) writes:
>Greetings from the void!
>
>Someone called me and asked if there was a way to turn her IBM PC (I think it's 
>an XT) into a TDD (Telecommunications Device for the Deaf).  
>
>I explained the problem to her:  PC's use an 8-bit ASCII code, TDD's use a 5-
>bit BAUDOT code.  And TDD's also are limited to a single, obscure baud rate of 
>45.5 bps.  
>
>I told her that I vaguely remembered that there was a special-purpose modem 
>(or perhaps a programmable UART) that did the bi-directional ASCII <---> BAUDOT 
>translation, but I couldn't remember the details.
>
>So, anyone out there know the who, where, how, and how much?
>
>Thanx for any info.
>-- 
>
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This shouldn't be too difficult.  You should be able to do a code translation
in software and just build a simple interface box.  I did this with an old
TRS80 mod 1 back in the late 70's.  I wanted a printer for it and being only
13 or 14 had no money, but I had the boat anchor of boatanchors a Model 15 
teletype machine, which uses baudot code.  Ed Sommerfield (i hope I remembered
that right)  wrote an article on doing this conversion in 73 magazine in the
late 70's.  You may want to look in some of the ham radio groups. Actually
now that I think of it depending on what they use as the mark and space tones
for the AFSK (audio frequency shift keying)  you may be able to use an older
ham computer-radioteletype interface.  

Hope this helps and is not to rambling


John J. Stankus  N5PEE				Chemistry Department
stankus@leland.stanford.edu			Stanford University