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Old 28th Aug 2019, 3:21 pm   #12
Jon_G4MDC
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Join Date: Nov 2015
Location: Welwyn Garden City, Hertfordshire, UK.
Posts: 2,015
Default Re: Crystal oscillator circuit design

It was fun to play with it. My first outing with an oscillator in LTspice.

Nice to see the effect of emitter resistor on crystal dissipation and at the same time the parallel capacitor on start up.
If the 100pF is made 47pF instead it has not produced any output by 30mS - probably it never will.
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