[sdiy] top octave gneration

[adam at hoodmusic.net]

didn't think about that, did all this thinking at 4:30am so i was not the most
awake, maybe try doing it like the fatman VCO, i seem to rememer it going about
voltage control through some other setup other then pin 5. I do not remember exactly
what that was though, nor if it would actualy solve this problem, but they have 2
gang tunned so why not 12 :)

adam

Scott Gravenhorst wrote:

> adam at hoodmusic.net wrote:
> >Sure you could tune on the fly, use the CV input on the 555s, it would give you
> >a tune control for each note of the top octave and one for the whole top octave.
> >it would double the parts count, but be well worth the added control.
>
> That thought crossed my mind as well, but has anyone actually
> tried 'gang tuning' 555 timers this way?  Do they track?  I
> assume you mean to use pin 5 (as it is on the single timer).
> This doesn't have a very large range and because it changes
> the threshold value, it will also change the amplitude of the
> sawtooth output.
>
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