adding sync input to old rhythm boxes?

[Rob]

-----Original Message-----
From: matt wilson <sebsi23 at hooked.net>
To: analogue at hyperreal.org <analogue at hyperreal.org>; synth diy
<synth-diy at mailhost.bpa.nl>
Date: Thursday, July 15, 1999 4:18 PM
Subject: adding sync input to old rhythm boxes?


>can someone direct me to some information on adding sync inputs to
>old stand-alone type rhythm boxes (ie korg sr120, roland cr68) so that
>they will play sync'd with one another? the roland has a trig out but
>the korg has no sync capabilities at all....anyone done this? it doesn't
>seem
>like it would be too hard to implement...
>
>TIA,
>

All you need to do is to find the circuit that generates the pulses that
clock the processor.. The are usually attached to the tempo knob.. Once this
is found, you need to figure out how many pulses per beat or measure, then
add a jack that will disconnect the internal tempo generator and patch your
external generator into it with the proper pulse rate...

Rob