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把扫频仪输出的扫频信号调到最大,经100千欧电阻(或更大些)加到晶体管的集电极.扫频仪的输入探头也接到集电极.扫频仪的灵敏度放在最高位置.改变扫频仪的中心频率,找到集电极回路的谐振峰.
Sweep the output of the sweep signal to the maximum tune by 100 kΩ resistor (or more) added to the transistor collector. Sweep the input probe is also connected to the collector. The sensitivity of the scanner on The highest position. Change the swept center frequency to find the resonant peak of the collector circuit.