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GetLoFi posted detailed info on using their LTC1799 Precision Oscillator kit for pitch control on a Casio SA-39 Keyboard -

The kit oscillates at frequencies from 1KHz to 30Mhz and its output frequency is controlled with a potentiometer. The oscillation frequency from this kit can be substituted for the constant oscillation frequency a device receives from its internal crystal. The kit’s variable frequency will allow you to control the pitch of a device when it is patched in place of –or sometimes in parallel with—the device’s internal crystal.

Likely interesting even if you aren’t working with that specific hardware – Circuit Bending Casio SA-39

Collin Cunningham

Born, drew a lot, made video, made music on 4-track, then computer, more songwriting, met future wife, went to art school for video major, made websites, toured in a band, worked as web media tech, discovered electronics, taught myself electronics, blogged about DIY electronics, made web videos about electronics and made music for them … and I still do!


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