[sdiy] VCO idea

[Ian Fritz]

At 06:36 PM 1/13/2003, Theo wrote:
>As Ian explained your only fire a SH, so if I get this correctly you only
>use the 3419 outputs to trigger a short pulse.
>The "new" stage will trigger the pulse for the SH, the "old" stage being
>still active doesn't matter.

Right, that's what I'm saying.  Again, the circuit I used is here:
http://home.earthlink.net/~ijfritz/pm_cir3.htm
The LM3914 output transitions fire simple CMOS half-monostables which turn 
on analog switches.  The switches can connect whatever source you want to 
use (e.g., dc voltage off a pot wiper) to a buffered holding cap.

   Ian