[sdiy] Partslist for an Ob-1??

harrybissell harrybissell at prodigy.net
Sat Jul 23 04:41:21 CEST 2005


Hi Stefan...

BOTH envelope generators are in there. Page 2 of 3 of the voice board is the
discrete
env. gen, the separate board is a replacement.

Now I looked for about an hour before I found the VCF (at the bottom of the
oscillator board schematic)    ;^P    Maybe you got fooled by the markings
on
Pg. 2 that say VCF and VCA.   They are not the VCF and VCA, they are the
EGs.


H^) harry

Stefan wrote:

> are those the same as on http://www.electrongate.com/obfiles/
> or are they different?
> i'd be interested in a schematic of the earlier ob-1, with discrete asdr
> instead of cem3310 chips.
>
> Jeff Farr wrote:
>
> >So, I've got the schematic.  But, much to my dissapointment, the
> >components are labled without their part names.  Perhaps the copy I
> >got is missing a few pages??
> >
> >
> >
> >
> >




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