Crystal Oscillator at Overtone

[@AllElectronicsChannel]

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[@ruhnet]

WHY DID I NOT FIND THIS CHANNEL BEFORE!?! Fantastic! 👍😁

[@AllElectronicsChannel]

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

[@acestudioscouk-Ace-G0ACE]

Thanks for the video, very interesting. I think I may need to watch it a few times to absorb the information.

[@rubenhidalgocarrillo]

A pleasure to watch your videos, as always

[@alimorad5474]

اصبح لي سنين اريد أن افهم الكريستالة ولكن لم لم افهما الا بصورة صعبة ولكنك جدير بالاحترام اسلوبك جميل جدا

[@AllElectronicsChannel]

Thank you!

[@Sixta16]

Show us please, how you have calculated the values of the inductors in this circuit.

[@amirb715]

excellent video as always. very useful. what was the tap point on the top inductor and the value of the variable cap?

[@AllElectronicsChannel]

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! 😝

[@andrewwooding3138]

Great video

[@sbybill3271]

A thumbs up for you. I would have loved to see the actual oscillator waveform. I don't know why it's often not shown. Is it because of nonlinearity?

[@AllElectronicsChannel]

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

[@sbybill3271]

@@AllElectronicsChannel Thanks

[@rentoneureka510]

Thank you very much i did this circuit i works great. Please can you make a video on an RF amplifier for this circuit

[@AllElectronicsChannel]

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

[@colinhoof-ee9rg]

The crystal I have used obviously isn't an overtone type as I can only get it to oscillate at its specified frequency of 16mhz, nothing else.

[@AllElectronicsChannel]

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

[@cohof]

@@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.

[@jefersond.twotrees9749]

Wow😯which💯 vídeo 👍✨🌟

[@colinhoof-ee9rg]

What active device did you use in this project ?

[@AllElectronicsChannel]

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

[@victor21835]

Is it possible design a overtone XO without inductor?

[@AllElectronicsChannel]

I think no..

[@avonfonds2567]

How much amplitude dose the crystal oscillator oscillate voltage ac pp?

[@AllElectronicsChannel]

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

[@khimroy3958]

The crystal oscillator Q is very high 👽