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This is pretty cool

We used to use the old AT&T Dataphones (401E?). Amazingly few active components--LC tuned circuits mostly and a very few transistors.

I think there was a general mistrust by AT&T of transistors at the time--the standard Touch-Tone dials were single-transistor affairs (to generate two tones at once, no less).

Anyone here own one of the do-it-yourself modems from Popular Electronics--the "Pennywhistle" modem?

I connected my MITS Altair to the system at work with the guts from a TI Silent 700 terminal. A few years later, I moved up to a Racal-Vadic "triple" modem--300/1200 and (ISTR) 1800 Vadic protocol.
 
Strangely he didn't shut the lid! If you used one of them next to a teletype, and forgot to shut the lid, CORRUPTION!!!!!

I have one very similar (the box sits flat and the lid is cut at 45 degrees), and I treated myself to an older style telephone just in case I ever get my asr33, so I can re-live the school cupboard experience.

I also picked up a journalists press pack, which consists of an NEC 8201 and a slightly more modern acoustic coupler/modem mounted in an attache case. The foam's rotten though, which is a shame.

(HEY MERLIN! Quick thread on re-integrating foam rubber?;))
 
Very nice. Interesting to see how fast the Wikipedia page came up. Although it took a while to negotiate, the page itself didn't take much longer to load than with broadband accessing a page on a typical slow or overloaded server. Goes to show that computer technology doesn't actually move that fast - just our perception of it does. :p

One thing that I found irritating, however, was his description of the box as "hand made". I beg your pardon, but that is just plain ignorant. We're looking at standard factory issue for the time and many years earlier. This modem is from the 20th century - not the 19th! :)
 
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