[sdiy] universal drum machine interface

Tony Kalomiris weplar at gmail.com
Sun Nov 4 07:29:19 CET 2018

Hi Adam,

That is so cool. I learned how important pulse width was when I started
interfacing my pre-MIDI drum machines in tone it produced.
For example on an 808 it was toughly 1 ms and the 909 was closer to 2 ms.
These are differentiated and mixed with the accent/trigger transistor, the
way Groove Electronics did it.
But this sounds a lot more programmable. This guy does nice MIDI retrofits.


From:  Adam Inglis <21pointy at tpg.com.au>
Date:  Sun, 4 Nov 2018 12:56:06 +1000
To:  synth-diy mailing list <synth-diy at synth-diy.org>
Subject:  [sdiy] universal drum machine interface

I installed this thing in to my Roland CR-8000..


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