[sdiy] damnable digital interface.

[Steve Begin]

I'm considering bringing my poly800 out of retirement (and backing it up and restoring it whenever I need to) but there is one thing I'd love to change on it and I'm not sure if it's more effort than it's worth.

Is there such a thing as a knob that acts like a membrane switch being pressed for every x degrees it is turned, and can close another switch when it's turned the other way?  I've seen volume controls on digital amplifiers with knobs that can spin forever and seem like maybe that is how they function, but I'm not really sure.

It's a bit annoying having to press up 80 times consecutively when adjusting the cutoff frequency :)


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