[sdiy] Electronotes, op-amp substitution, thru-zero oscillator...

[Grant Richter]

Looks like two parallel oscillators, one turns on for positive CV,  
one turns on for negative CV.

On Jan 14, 2006, at 6:40 AM, Dave Kendall wrote:

>>> i'm also looking at the thru-zero VCO... pretty complex project,
>>> but i'll never be buying one from cyndustries... any of you
>>> oldtimers ever build one of these beasts?
>
> I found this. Doesn't look too complicated......
>
> <http://www.edn.com/article/CA341451.html>
>
> Cheers,
>
> Dave