MATRIXSYNTH: Moog Polymoog and Oberheim OB8 Schematics


Friday, March 10, 2006

Moog Polymoog and Oberheim OB8 Schematics

More scans from ChristianH. I previously posted his Memorymoog scans. He added a scan of the Polymoog and OB-8. Notes below. If you can help, feel free to post a comment.

Udate: Looks like Jordan Gibson on the AH list came through. He ran a full scan of the Polymoog Service Manuel and Brandon Daniel is hosting the whopping 180M file on fdisk.com.



"Hi all,

I finally spent some time and did some joyous 30 year anniversary
Polymoog scanning to acompany the Memorymoog schematics scans I did the
other day.
This is the complete Service Manual, Volume II (schematics).
Some of the sheets are pretty large, but luckily I have access to large
format scanners at work :-)
Considering that some of the original manual sheets are some kind of
ancient 70s blue prints, which have severely yellowed background
(actually the paper deteriorated to a hot red in some areas), the end
result looks quite nice after some heavy processing, you all know the
routine - EQing, noise gating, compressing, and a tad of Exciter to
improve sharpness:
http://www.chrismusic.de/synth/schematics/polymoog.zip
12 MB ZIP file, but by today's download standards, this isn't that large
anymore.
All missing page numbers are blank pages, nothing has been omitted for
scanning.

I NEED YOUR HELP: Now, if some kind soul would do the same for Volume I,
I simply don't have that one. I assume, it contains calibration info and
circuit descriptions, and thus should be more suitable for small format
scanners. I'd be glad to host Vol.I on my site as well.

And maybe the additional "Polymoog Keyboard" filter board schematics
would fit in here nicely, if anybody has them available.


And while I was at it, there's an almost legible scan of the OB8 voice
board component layout:
http://www.chrismusic.de/synth/schematics/OB-8-voice-board-600dpi.tif
On all scans I found before, the component designator numbers were
pretty hard to decypher, which makes locating measurement points on the
boards quite tedious.
This one comes from an original service manual. Not on the light side,
at 600 dpi grey scale - a whopping 4MB for one page.

cheers
Christian


P.S.: maybe a little long-shot, I'd be glad to do a similar scanning job
with the giant CS-80 schematics diagram.
The one to be found on the net is a godsend nevertheless, but due to
small format scanning, the pieces won't really fit together.
If someone could lend the schematics to me for scanning, that would be
great.
If there is a CS-80 owner in the western Germany/Netherlands/Belgium area,
I'd even opt for a personal pickup (and maybe some synth geek talk as
well... ;-)"

1 comment:

  1. Hi !
    Maybe, just maybe you have OberheimXpander Schematics.....the one you can find on the web are crappy.

    Thanks for OB8 schematics, they look good !

    ReplyDelete

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