[LAU] Question about using old Yamaha expression pedal

[david]

On 8/31/22 21:33, Alexandre DENIS wrote:
> On Wed, 31 Aug 2022 18:06:59 -1000
> "David W. Jones" <gnome at hawaii.rr.com> 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.
>
Thanks, Akexandre. Guess I'll just have to find out when I get to the 
point of buying a new keyboard.

-- 
David W. Jones
gnome at hawaii.rr.com
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