Circuitbenders Forum

Circuitbenders Forum => Circuitbending discussion => Topic started by: Signal:Noise on August 11, 2006, 05:54:04 PM

Title: Expression pedals.
Post by: Signal:Noise on August 11, 2006, 05:54:04 PM

Is it possible to just get the mechanism for an expression pedal so you can wire it in as a controller for a keyboard etc?

Title: Re: Expression pedals.
Post by: Circuitbenders on August 11, 2006, 06:04:56 PM

er, yes............its called an expression pedal, erm........

All you have inside an expression pedal is a pot with a pedal attached to it. This means that any synth with an expression pedal input can have a knob added to the front panel wired striaght to the expression pedal input.

I have a knob added to my Casio FZ1 sampler that i think can control filter cutoff via the expression pedal input. I haven't turned it on for about a year and a half so i'm not entirely sure.

Title: Re: Expression pedals.
Post by: Signal:Noise on August 11, 2006, 06:45:13 PM

Ah right, didn't know that...had the term thrown at me today in regards to a analouge drum synth I'm modding. Are they expensive at all?

Title: Re: Expression pedals.
Post by: Circuitbenders on August 11, 2006, 07:26:10 PM

I got a decent one from ebay fro £8 but that was a fluke i think. Bear in mind that in order to be as irritating as possible there are two plug polarities used by Yamaha and Roland etc

I think the more popular method is the roland one but i'm not sure you uses either way round.

Title: Re: Expression pedals.
Post by: papaspank on August 14, 2006, 11:41:07 PM

There are some switchable ones too, so you can filp the polarity of them to work
on various brands of keyboard (yamaha & roland being two of them).

Think the one I got years ago cost me £12 or there abouts.