C. Jim Cook wrote:

> Somehow, it figured out how the multiple sine waves of four simulta-
> neous notes should be played by executing CAF instructions with
> various spaces in-between.  (I always wondered about the algorithm.)

This is a 1-bit A to D [analog to digital] converter, followed by
a low pass filter (the radio).  It is amazing what you can get with
only 1 bit.

Marc Kaufman