This circuit converts a range of input voltages at frequencies from 800 Hz to 3.7 kHz. This is a voltage-controlled oscillator found in the June 1968 Radio Electronics magazine. The component values can be changed.

This circuit converts a range of input voltages at frequencies from 800 Hz to 3.7 kHz. This is a voltage-controlled oscillator found in the June 1968 Radio Electronics magazine. The component values can be changed.