[sdiy] ...dumb question (CD4017 sequencer)

[grb444 at gtcinternet.com]

I've been dipping back into my  pile of old homemade synth stuff, unused for at
least 12 years... Way back there, covered in dust, is a 140 step 4017 based
sequencer with multi turn pots. Haven't got a clue about it, but seem to
remember to worked ok. I think it had something to do with the Polyphony
article "build a quad sequential switch" Unfortunatly, some fool cut it out of
my Jan/Feb 81 polyphony and lost it.

Anyone have that article available?

Thanks
Greg B

James Husted wrote:

> You mat try thinking of using the very similar CD4022. It was the basis for
> the Oberheim Mini-Sequencer. I have the full schematics on my site (along
> with everything else Oberheim analog I can find). The direct link:
>
> http://www.ersatzplanet.com/Pages/pdf/ObieSchemos/Miniseq.pdf
>
> You can strip out most of the digital stuff from the schematic that forms
> the quantizer, and the rest works great.
>
> -James
> --
> James Husted
> The ErsatZ Planet Graphics & Sound
> James at ersatzplanet.com