[sdiy] very simple vco

[Paul Perry]

Tony Algggod says:
>Check out the 74HC4046 chip too. Nice little square wave VCO for
>pennies. 'Linear' repsonse though.

True.. can anyone see how t\to get an approximate saw from it?
There is a pretty hopeful sort of irregular waveform from some part of it
from memory, but I couldn't wrestle it to the ground.. any ideas??

paul perry (Melbourne Australia, scattered showers)