[sdiy] Top DIY VCO

[harrybissell]

just curious... why 'all discrete' ???   Its possible of course but the
reason a lot of folks started using OPAMPS is that they are superior
in some ways.  Well, they sure make good opamps anyway  (good for
summing amp, expo converter etc...)

H^) harry

harrybissell wrote:

> there is NO SUCH THING as a single, PHAT vco...
>
> plan on building TWO if you want PHAT   :^P
>
> H^) harry
>
> Frédéric Bourgeais wrote:
>
> > Hi all,
> >
> > I'd like to build some VCO, V/Oct with square, saw and pwdth outputs
> > made only with discret componants. Good thermal stability, but it's not
> > critical.
> >
> > I took a look around the web, but it's not easy to choose one design
> > without hear one before.
> > Does anyone may suggest me some schematics (URL) for a simple and PHAT
> > sounding one ?
> >
> > Thanks
> > ++Fred
> >