1964 Antique MODEM Live Demo

[Chuck Guzis]

On 28 May 2009 at 19:10, Dave McGuire 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?

--Chuck