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Easy_tune_sine_wave_oscillator

2016-08-31 11:49  
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Easy_tune_sine_wave_oscillator
This circuit provides both sine- and square-wave outputs at frequencies from below 20 Hz to above 20 kHz, by varying R3. R8 sets amplitude.Distortion varies between 0.75% and 2% depending on R3 setting. The frequency range is set by R1, R3, and C1, as shown.