1964 Antique MODEM Live Demo

Dave McGuire mcguire at neurotica.com
Thu May 28 20:15:00 CDT 2009

On May 28, 2009, at 9:00 PM, Chuck Guzis wrote:
>>> If you don't really need a design that old, you might be able to
>>> find a TMS99532 or Am7910 FSK modem chip.
>>    An eBay seller has a number of TMS99532s available at $2.75/ea,
>> item # 110376664450.
> I don't recall what the Pennywhistle used.  Was it NE567s or am I
> thinking of another hobbyist modem design?

   I honestly don't recall, but I seem to recall their having been  
more components than a TMS99532-based design would require.


Dave McGuire
Port Charlotte, FL

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