On Wed, 31 Aug 2022 18:06:59 -1000 "David W. Jones" <gnome@xxxxxxxxxxxxx> wrote: > Will a Yamaha expression pedal work on a non-Yamaha MIDI keyboard? It > uses a stereo 1/4" plug. > > Thanks! > Hi, Some expression pedals are wired with the pot on TRS, some others use RTS (i.e. wiper of the pot either on tip or ring). To make things worse, some use a lienar pot, some others use a log pot. AFAIK Yamaha uses RTS wiring. On the other hand, most pedals use TRS. But in a lot of keyboards, the polarity is either tunable or auto-detected. The only advice is to test the pedal on the keyboard, or to check in its documentation. -a.
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