TR-505 => TR-808?

[Steve Richardson]

Byron G. Jacquot wrangled the electrons to say:
> If you're happy with a less elegant solution (depending on your definition
> of elegant), you might be able to extract a trigger from one of the audio
> outputs with a comparator or schmitt-trigger.  (and if you could find a 626
> or 707, they would work better for that, because you could steal a single
> voice's output for the trigger extraction.  With the 505, you're stuck with
> the stereo outs, I think).

Slightly more elegant might be a small microprocessor that sniffs the
MIDI output.  You can configure each pad on the 505 to a different
channel and note number.  It would be quite simple to get a micro to
trigger given a 'note on' message.  In fact, it would be interesting
to ask whoever produces that OTP MIDI clock chip (which is just a PIC
I believe) if they could do a quick version that produces trigger
outputs.

If you use a micro with enough on-chip I/O, you could probably produce
8 such trigger outputs in a tiny package.  You could build replicas of
the original x0x circuits and run them all off of a 505..

-S
proud(?) 505 owner..

-- 

 Stephen S. Richardson                  The GweepCo Cooperative Network
 prefect at gweep.net                      network access * technology vulturing
 http://www.gweep.net/~prefect/         http://www.gweep.net/