[sdiy] +/- 9v synth circuits / EDP Wasp Schematics?

[Henry Till]

--- harrybissell <harrybissell at prodigy.net> wrote:
> If I had to do a +/-9V synth... I would study the
> "Wasp" synthesizer for ideas...
> 
> I'd do a high frequency VCO with a programmable
> digital divider...  now tuning
> stability is not really an issue... all the notes
> will always be in tune.  I'd
> add the Wasp
> filter and whatever else you like.  I would not use
> voltage regulation at all for
> most
> of the circuits... possibly just some reference
> voltage IC for the VCO
> 
> I would not try and copy the Wasp's PLL trackers...
> otoh if you need portamento
> that would
> be a way to go.  If you kept the HF-VCO quite high
> in frequency... you could
> locate the
> PLL high up in the chain (higher freq. input will
> make the PLL settle faster...)
> For waveshaping
> I'd use digital dividers and summing resistors...
> maybe a 16 step staircase
> instead of a sawtooth...
> 
> H^) harry

Sort of my first post here.  Hi everybody...

Do you, or does anyone else know of any schematics one
could refer to for such a design (a high frequency
oscillator w/digital divider like the wasp)?  any wasp
schematics? i can only seem to find the
well-documented filter...

I like the idea of a portable battery powered synth
like the wasp...maybe i could build a separate box
with some esoteric controllers, and run both off
batteries for guerilla synth action (w/pignose or the
like)...

-Henry   

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