1964 Antique MODEM Live Demo
hilpert at cs.ubc.ca
Thu May 28 18:03:47 CDT 2009
David Griffith wrote:
> On Thu, 28 May 2009, Golan Klinger wrote:
> > Disclaimer: I wouldn't normally post this sort of thing but I'm
> > confident it will be of interest to more than a few on this list.
> > "1964 Antique MODEM Live Demo"
> > <http://www.youtube.com/watch?v=X9dpXHnJXaE>
> It certainly is of interest. I'd like to get one of those for myself. It
> shouldn't be too terribly hard to homebrew one of these things into a
> shoeshine box, right?
I have one of the same model as shown in the video (Livermore Data Systems
model A). Component date codes in mine are 1969/70, the 1964 suggestion may be
a little early, but I guess it depends on how long they were producing them
for. Very elaborate woodwork for the task (solid teak or walnut with dovetail
joints) but I suppose the wood case had some acoustic advantages. 13 transistors.
(pedantic: His technical description was a little off, it's FSK, not an
Does anyone know if the frequencies for the 110 and 300 baud modem standards
were the same or different?
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