homemade synth challenge ???

[Harry Bissell]

Hey Tom...(et al)

Naw... that would be cheating. I think you have to pass on using the
special chips
(76477 etc...)  The noise source and filter is a cool idea...

Do you think the power supply should be part of the challenge... I'll
use 2 - 9V batteries thanks (about 1min30sec...) And maybe it will run
for 1/2 hour also....

Of course pots and jacks on the bench (or trimmers) is fair game...

STOP THE CLOCK :^)

Harry

tomg wrote:

> > How about you, TomG... you in ???
> >
> > :^) Harry
>
> Hey Harry. What sort of synth? You can do wind or surf with
> noise and a filter. I assume you mean a cv-musical synth.
> vco/vcf/vca/egs..etc. The CEM3394 is the only "real" solution
> to a 30min synth challenge.
>
> http://www.xavax.com/efm/synth/maxx/pics/3394_sd.gif
>
> Paul has the 3394 app-notes and the chips for $16ea (2pc min).
>
> http://www.synthtech.com/cem/c3394pdf.pdf
>
> If you leave the pots and jacks loose on the bench and the iron
> is hot....maybe 10mins.  BTW you can get the -6.5V from an
> opamp.
>
> Something like the 556 DEG would do for EGs and might take
> another 10mins.. That leaves 10 for the power supply...;-)
>
> -tg