temperature stable oscillator

Posted on Oct 1, 2012

The Colpitis sinusoidal oscillator provides stable output amplitude and frequency from 0°F to +150°F. In addition, output amplitude is large and harmonic distortion is low. Oscillation is sustained by feedback from the collector tank circuit to the emitter. The oscillator's frequency is determined by: Potentiometer R3 is an output level control. Control Rl may be used to adjust base bias for maximum-amplitude output.

temperature stable oscillator
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The circuit was operated at 50 kHz with LI = lOmH, Cl = 3500 pF, and C2 = 1500 pF.

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