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Discussion about the Korg PolySix synthesizer

Index last updated: 2026-04-28 23:40 UTC

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Re: [PolySix] Re: DIY Midi for P6 - has anyone built it ?

2004-03-23 by The Old Crow

I talked to Bojan (author of that MIDI retrofit) a few times via email.  
He certainly knows his stuff.  His disassembled and annotated pages of the 
KLM-366 and KLM-367 microcontrollers are immaculate, and have been very 
helpful in my work trying to my the MIDI version of my replacement KLM-367 
board.

  On that note, I just received the bare boards for the production run of
KLM-367 clone circuit boards.  I now have all the parts needed to have my
assembly house do the production run.  These are the direct drop-in boards
that entirely replace battery-damaged/ruined KLM-367 patch manager boards 
and use the original 8048 microcontroller (not PICs).

  When I have units ready to sell, I'll let this list know.  Those who 
sent emails asking will also receive private emails once they are ready to 
ship.  At least I can say that time is getting close at last.

  Information on this project, for those who do not know about it already,
is here:

http://www.oldcrows.net/~oldcrow/synth/korg/polysix/crowlm367/

  One note: these are not the 'new' KLM-367 version I am currently working 
on, which will use PIC microcontrollers and feature keyboard and parameter 
MIDI as well as flash-based patch storage (no battery anymore!)  This 
version is many months away yet as the coding for them is quite complex.

Scott Rider
Old Crow's Synth Shop
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