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Oscillator Circuit of Three - Point Capacitance

2016-08-19 20:09  
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Oscillator Circuit of Three - Point Capacitance
The oscillating tube is rystcal triode and Rb1,Rb2 and Re consititute stable bias circuit.Ce is AC shunt capacitor,itC3 and C4 is blocking coupling capacitor.Lc is choke which prevent the AC componet from passing through the power short-circuit.C1,C2 and L constitute frequency network.The feedback signals output from capcitance C2 and they are transmitted to input end,thus it is called capacitance feedback oscillator.