[sdiy] control voltage construction help

[Michael Schulze]

http://machines.hyperreal.org/manufacturers/Roland/System-100m/

> From: "Caleb Johnston" <caleb_1 at msn.com>
> Date: Wed, 26 Feb 2003 22:20:06 -0500
> To: synth-diy at dropmix.xs4all.nl
> Subject: [sdiy] control voltage construction help
> 
> 
> 
> Hi again everyone and thanks for the help in advance.
> 
> I have a Roland System 100, which is an analog semi-modular synthesizer.  It
> is only monophonic and I am trying to make another keyboard controller for
> it.  This keyboard would have two outputs.  One for CV and one for the
> trigger/gate.
> 
> I am looking for the specs on these outputs and inputs for the Roland System
> 100.  Does anyone know where I can get these or just give them to me?
> 
> I am guessing 14 V trigger for 10 ms and then 5 V for the gate when on?!
> And 1 V per octave on the CV.  I am unsure about what impedance or
> resistance for the inputs and outputs though.  If anyone has any concrete
> specs for :
> 
> trigger/gate out and in
> cv out and in
> 
> it would make my day.
> 
> thanks.
> 
> 
> 
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