Circuit-bending with the LTC1799 kit

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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

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