[sdiy] Mod wheel

[Tim Parkhurst]

Hey Ethan,

>From what I've seen, the potentiometer itself is not spring loaded. The
wheel has springs that mount between the body of the wheel and part of the
chassis to pull the wheel back to center. I'm assuming you're actually
talking about a pitch bend wheel rather than a mod wheel. I have seen
joysticks that have springs built in to return to center, but again, those
springs are in the body of the stick rather than in the pot itself. 

Also, the usual trick to get a small center 'dead band' in the pitch bend
pot is to put a couple of diodes in series with the pot. The 0.6V drop
across the diode means that the voltage coming off the pot doesn't change
until it swings higher than 0.6V or lower than -0.6V.


Tim Servo

"Imagination is more important than knowledge." - Albert Einstein




> -----Original Message-----
> From: ethan tripp [mailto:ethan at monsoonmicro.com]
> Sent: Tuesday, September 09, 2003 12:55 PM
> To: synth-diy at dropmix.xs4all.nl
> Subject: [sdiy] Mod wheel
> 
> does anyone know where i could get a mod wheel potentiometer.
> the spring loaded type that rest at center (true pitch) and swing up
> and down?
> 
> -et-



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