[AH] minimoog tuning / key trigger issue

From Chase Smith
Sent Thu, Jan 18th 2018, 03:10

Hi,

I'm working on a minimoog now and I'm having an issue where when I
hold a key down and press another higher key, I get a couple mv
increase on the keyboard cv and the tuning goes a little higher.  I
was trying to figure out if this is some weird characteristic of some
certain revision minimoog or if there is some deeper issue in the
keyboard circuit.  It originally had some connector issues that I
fixed, and I've gone over the connectors alot, cleaned the bus bar and
tried to gently clean the key springs.  I checked the keyboard pitch
path from the bus bar to the oscillator board and all connections have
around 0.1-0.2 ohm resistance so I'm wondering if this is some thing
with the design of the circuit before I get into it anymore.  Serial
number is around 5700.

Thanks,
Chase