Four crystal filter circuit diagram
Source: InternetPublisher:桂花蒸 Keywords: circuit diagram crystal filter filter circuit transistor Updated: 2020/03/12
This circuit uses two sets of matched transistors with a maximum frequency difference of 25Hz for each pair. Transistors serve as input and output isolation stages. Each pair should be from the same supplier and have the same nominal parallel capacitance, activity, and the same resonant frequency for the circuit at 25Hz.
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