Seeking Roland MKS-80 and Jupiter 6 filter schematics

[WeAreAs1 at aol.com]

In a message dated 12/8/00 3:11:57 PM, kirke at bellsouth.net writes:

<< Does anyone have the MKS-80 and Jupiter 6 schematics and could easily scan

the filter circuitry?

I'm interested to see how the IR3109 and IR3R05 are configured in those 
models, actually the early MKS-80 had the IR3109 so a newer MKS-80 
and either an older MKS-80 or a Jupiter 6 filter is what I'm looking for. >>

Hello Kirke,

Do you still need these documents?  I have made high-quality scans of the 
IR3109 filter sections of both synths (JP6 and older version of MKS-80).  
Please let me know if you still need them, and I will email them to you.  Are 
you going to build a clone of them?  If so, are you going to use the IR3109 
chip?  I have always liked the JP6 filter.  The Lowpass isn't very 
impressive, but the Highpass and Bandpass modes are very, very nice.

Best regards,
Michael Bacich