[sdiy] Buchla Dodecamodule docs?

[Byron G. Jacquot]

Howdy all,

A friend has a Buchla electronic music box.  He brought it to me for a little TLC.  I've been able to suss out and solve a few issues, but I've got one remaining that's not been so forthcoming:  The Random Voltage Source quits working as the machine warms up.  It runs fine when it's cool, but stalls after a few minutes.  

I've seen Magnus' schematic collection, but there's no 212.  Does anyone have any documentation for this guy, or any idea where I should be looking?

Thanks,

Byron Jacquot