Archive of the former Yahoo!Groups mailing list: Yamaha CS80

talking about stability:
one of my CS80's took over one hour to get all oscillators pitched
correctly while my other took only a few minutes.
So, I removed the old (and hardened)silicon-grease from the oscillator-
ic's and applied new grease and made sure the diodes were completely
covered by it. Now, it takes 15 minutes instead of an hour. Why it
takes still 15 minutes is mainly caused -I guess- by the fact that
I've 1 or 2 ic's with different temperature-codes.
Now I only hope the new grease doens't eat up the housing of the ic...

About the codes, I think it's ok to use different -non matching-
codes, but then you'll have to accept that during warming up the
pitches are uneven.

Of coarse, tuning the pitches should be done best on a hot summerday
or using a towel to keep the heat inside the synth...

Since, I'm not technical, can someone explain how the diode influences
the pitch of the oscillator ?