Crystal Oscillator at Overtone 

Thanks!! The tap is more or less 1/3 from the cold end. The capacitor is calculated to the inductor at the output frequency. I think I used something like 6-20pf. In the description of the video I placed the link to my article, take a look! 😝

I have video about amplifiers that may help. Take a look on the channel!

Thanks!! The timedomain waveform is not so useful for small signal RF.. what matter more is the viewpoint of output power and harmonics

@@AllElectronicsChannel Thanks

Thank you man!!! Let's grow it together!! 😁😁

I think no..

I Don't remember exactly, you can see by the power on the spectrum in the video. I think something like 200mVpp

It is hard.. I think it should resonate. Maybe it did not because its losses are too high.

@@AllElectronicsChannel Might have a lot to do, with the active device used. The ft of the transistor was not very high and it wasn't a good choice for a high frequency circuit. The Crystal was not tested before entering this circuit to see, if it would operate at other frequencies rather than just the fundamental which was 16 mhz.

That probably is a simple BF199. Any more modern BJT will do.. Even the common BC847