| 摘要 |
A degenerating device is connected between the emitter of the amplifying transistor and ground. A resistor connected across the FET switch provides a finite limit, the total resistance in the emitter circuit of the amplifying transistor. Additional circuitry may be provided in the emitter-based circuit of the amplifying transistor such as an impedance correcting circuit designed to compensate for changing base input impedance, the result of change in the resistance of the degeneration circuit.
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