Two-Transistor Sine-Wave Oscillator

Posted on May 6, 2012

This oscillator uses two transistors and operates the crystal in the fundamental mode. CT and C2 should

Two-Transistor Sine-Wave Oscillator
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be about 2 700 pF for 1 MHz, 680 pF for 5 MHz, and 330 pF for 10 MHz. 150 pF can be used for up to 20 MHz. The output is a near perfect sine wave. Try varying Ci and C2 for best waveform. About 2 to 6 Vpp is available.

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