Crystal Oscillator tester

341

03:30:58

Switch must be changed to the Crystal you want to use.
The LED will turn on if the Crystal is ok. The transistors used were 2n2222, with tested frequency from 27 KHz to 21MHz. All the capacitors used were ceramic ones, and the diode was a BAT85, but any high frequency diode should work.

published 7 years ago

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