[sdiy] Buchla 291e teardown

Lanterman, Aaron D lanterma at ece.gatech.edu
Mon Dec 26 10:51:35 CET 2022

I’ve always wondered if the 291e uses Vactrols like the original 291. It doesn’t! It’s completely different. It uses SSM2164 VCAs, so I’m guessing it’s probably closer to the State Variable Filter in the Oberheim OB-MX.

Here’s a video of me taking it apart, looking at the PCBs, and putting it back together:


Aaron Lanterman, Prof. of ECE, Georgia Tech
My blog on Education and Innovation: https://edupocalypsenow.wordpress.com
My blog on Electronics and Programming: https://lantertronics.blogspot.com
My YouTube channel on Electronics and Programming: https://www.youtube.com/c/lantertronics

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://synth-diy.org/pipermail/synth-diy/attachments/20221226/ab0aca59/attachment.htm>

More information about the Synth-diy mailing list