R. A. Moog schematics

[terry michaels]

Hello list members:

Over the years I have accumulated a large number of photocopies of R. A. 
Moog
modular synthesizer schematics from the Trumansburg era, many of which are
barely readable, poor quality copies.  I have recently done high resolution
scans of 4 of these drawings, and done extensive cleanup on them to restore
them to their original quality.  I feel these drawings may have some
historical importance, so I am posting these for anyone who may want to
study these early circuit designs.  Please note, these
scans were done at 600 dpi, so the file sizes are large.  If you can scale
your printer to print to fit the page size, rather than the original scan
size, the results can be printed on paper as large as 11" X 17", and will
still look excellent.

http://ourworld.compuserve.com/homepages/towersites/Minimo~1.gif       
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This is the VCO board used in the first production runs of the Minimoog,
and consisted entirely of discrete components (no IC's).

http://ourworld.compuserve.com/homepages/towersites/Minimo~2.gif       
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The same drawing with an engineering revision (REV. A).

http://ourworld.compuserve.com/homepages/towersites/904A.gif               
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The 904A voltage controlled low pass filter.

http://ourworld.compuserve.com/homepages/towersites/921.gif            
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The 921 voltage controlled oscillator. (Moog Music Inc.)

If anyone has problems downloading these files, please let me know, I had
inconsistent results when I tried it myself.  

Terry Michaels