[sdiy] best soundign vco design?

[Roy J. Tellason]

On Friday 11 June 2004 11:02 pm, Mark Romberg wrote:

> what about the nat semi ICL 3038?

I didn't know they made that part...

> it outputs square, sine and tri simultaneously and isnt quite as hard to
> find as the 13600/13700. there's a decent looking schem for a VCO in the
> application notes that you can get from NS.

Got a link to that app note?  I got one of these parts at Radio Shack some 
time back and built a crude function generator around it,  but never thought 
about using it in a VCO.