Crystal test circuit ----- Crystal Test Circuit

Crystal test circuit, Crystal Test Circuit Keywords: crystal detector The test circuit (circuit as shown), BG1 and the connected multi-frequency oscillator that measures 10 kHz-100 MHz crystal vibration are produced using simple several components. After the detection of C3, D1, D2 can be obtained on the LED. Voltage, drive LED light. If the crystal is crushed, the LED does not light. This small circuit can be mounted on a maintenance power source, and a small hole of two inserted crystal elements can be left. In the production: The two lead lines of the crystal cannot be too close, otherwise the oscillation is greatly reduced, resulting in unlightening the luminous tube.

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