[sdiy] cv schematic help

[Seb Francis]

You want to get out 2 independent CVs from your joystick, right?  And you have 6 pins on the joystick - 3 on each pot for each axis?

As you describe should work I think - be sure the negative (shield) of each jack goes to the junction of the 2 batteries (ground).  What kind of load are you driving?

Also, be sure the pots are quite high value if you are running it off batteries - the lower the pot value, the quicker your batteries go flat.   100K should be ok.

Seb



Caleb Johnston wrote:

> Synth Experts,
>
> I need help with a basic CONTROL VOLTAGE schematic. (I'm a novice)
>
> I am trying to have multiple joysticks send CV out.
>
> My schematic works for one axis output.  But when I wire the second axis
> (let alone another joystick) then the cv axes interfere with each other.
>
> Two 9v batteries hooked up in series to each other.  So then I have a +
> volatge, - voltage, and ground (the middle).  One end of the joystick pot
> goes to -.  The other end of the joystick pot goes to the +.  The middle
> joystick terminal pot goes to one end of the jack out.  Then the other end
> of the jack out goes to ground.
>
> Sketch it and it is easy to see.
>
> This works great for one axis, but try adding another and they interfere
> with each other.
>
> Any help would be appreciated.  Send me a sketch or text.  Thank you so
> much, in advance.
>
> -Caleb
>
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