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10_Hz_WIEN_BRIDGE

2016-05-16 21:28  
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10_Hz_WIEN_BRIDGE
JFET serves as voltage-variable resistor in feedback loop of opamp. as required for producing low-distortion constant amplitude sine wave LM 103 zener providrs voltage for peak amplitude of sine wave this voltage is rectified and fed to gate of JFET to vary its channel resistance and loop gain of opamp.- FET Databook, National Semiconductor. Santa Clara. CA. 1977. p 6-26-6-63