[sdiy] components, smd and pcb

[jhaible]

Sorry, mixed up personal reply to Tony and reply to the list.
Hope it's ok, though.

JH.


-----Ursprüngliche Nachricht-----
Von: jhaible <jhaible at debitel.net>
An: Tony Clark <clark at andrews.edu>
Cc: diy <synth-diy at dropmix.xs4all.nl>
Gesendet: Dienstag, 26. März 2002 23:38
Betreff: Re: [sdiy] components, smd and pcb


> >    Now I've got a question for you...why not use the last stage of the
> > CD4520 and have 5 octave out instead of 4?   Sure it adds a few more
> > parts, but it'd make it compatible with modern keyboards.  That's one of
> > the gripes I have when trying to control my MIDI'd PS-3100.
>
> I will do this, but only for *one* VCO per board. I'm not aiming at 61
> notes,
> but 49 notes (most 4-octave keyboards) would be nice. On the pcb, there
> is just space for one more output stage, not for 6 of them anyway.
>
> I might spread the VCF / VCA / ADSR circuits on 10 * 5 cards rather than
> 12 * 4 cards then.
>
> JH.
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