[sdiy] Black Magic oscillator cans

[Theo]

Yep its nice to be in tune with others ;)
You might wanna try a VCO to drive your TOG  to include vibrato.
Or try this one.
One TOG driven from a fixed (but tunable) oscillator and one TOG driven with
a VCO + LFO for vibrato.
The sum of the octave dividers outputs of both TOG systems should give you
some lush "chorus" like FX.
Key to make this work is to use very small vibrato depth and medium to high
LFO speeds.

BTW works on synths too, nice for '70s home organ sounds.

Have fun,
Theo


From: Tim Ressel <madhun2001 at yahoo.com>


> Hey all,
>
> Thanks for all the responses. What a group! Now that I
> think about it, It's kinda hard to tune a crystal so
> your gear is in tune with someone else's. Maybe its
> time for an adjustable oscillator. Someone mentioned
> an LC oscillator. I think I have an adjustable cap
> somewhere.
>
> Thanks all!
>
> --tr
>
>
> --- Glen <mclilith at charter.net> wrote:
> > At 06:25 AM 7/20/03 , Ken Stone wrote:
> >
> > >BTW, that tiny difference between 2MHz and what you
> > want is probably
> > >less than the tollerance/drift of a lot of
> > oscillators to start with, and
> > >well outside what a human ear can distinguish.
> >
> > It's not outside the what a human ear can
> > distinguish--IF were are
> > comparing two signals at the same time--one of which
> > was generated by a TOG
> > driven at 2.00000 MHz and another driven at 2.00024
> > MHz. If my calculations
> > are correct, the ubiquitous A440 would exhibit a
> > beating of once every 19
> > seconds. I know that's not objectionable for most
> > purposes, and might even
> > be desirable, but the point is that it *is* audible.
> > Depending on exactly
> > what you want to do with your TOGs, this amount of
> > error might not be
> > acceptable, but for most cases is probably
> > tolerable.
> >
> >
> > later,
> > Glen Berry
> >
>
>
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