Posted on Jul 1, 2012

This function generator uses a CA3260 BiMOS op amp to petform both the integrator and switching functions. A 620-pF capacitor and 2-KO resistor shape feedback square wave to reduce spikes. Full audio spectrum, 10Hz to 20kHz, is covered with a single 100 potentiometer.

Click here to download the full size of the above Circuit.

Requires 9-V battery.

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