God point to keep in mind.
Thanks Michael, for the reminder of days gone by (the game input of the
IBM design)
73
Andre'
*******************************************
Michael F. Skelly wrote:

If you only need 8-bit resolution, you might consider the game
paddle inputs.  Frequently they consist of 5V, ground, and a
potentiometer wiper, and the paddle itself is just a variable
resistor.  Linearity is not very good, and timing is not very
good, but you don't need that to record band activity.  The A/D
conversion function of the game paddles is never any high
frequency sample/hold function, so don't expect to record anything
more than 200 Hz.

-KA8OPJ