3 Tone Audio Oscillator Circuit CD4001
3 Tone Audio Oscillator is a simple circuit which will generate audio tone on the press of a button. This circuit can be very useful as a test equipment for audio equipment’s or as a signal source for an audio input. Input – 12 VDC @ 100 mA Output – Speaker, 8 Ω / 0.25 W Three switches produce 1.2
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