IC8 signal is not buffered. So it would be better to take Pin 1 of IC7 - which is the buffered signal. You should probably use your own op amp buffer too which would also avoid the need for a schmitt trigger.
From: 7yash <josh.nursing@...>
To: korgpolyex@yahoogroups.com
Sent: Wednesday, August 3, 2011 9:17 PM
Subject: [korgpolyex] Re: Tapping into the Key On state.
IC 8 - P 1?
--- In korgpolyex@yahoogroups.com, "7yash" <josh.nursing@...> wrote:
>
> Mike, on which IC and pin can I get the EG3 output?
>
> --- In korgpolyex@yahoogroups.com, Michael Hawkins <korgpolyex800@> wrote:
> >
> > ANother way would be to intercept the EG3 envelope output. And you could use a simple schottky (74C14) to provide the high low signal. Two diodes to protect the input.
> >
> > Then you can set EG3 timing to what ever you want. Set multi trigger and you're done.
> >
>