4007 (was: Re: DIY parts)

[jhaible]

> How about already mentioned 4007 for switching instead FET ?
> Don't have data sheet handy ,I belive it's not perfect
> (gate cap,parasite diodes etc.) but you can run 3 vcos from
> the same chip.I saw it at tomg's site and somewhere else.

It's no good idea to have the discharge circuitry of several
VCOs too close together. Your always fighting "interlock",
i.e. a limited minimum beat rate between VCOs, before they
are syncronized (soft sync'ed) thru parasitic coupling.

JH.