Analog 1 FET BF 256A sine wave radio oscillator 116 KC - 2 MC definite schematic & demo



Published
Please read the textbox/description. The final schematic of a 1 N-FET analog sine wave radio oscillator made with one N-FET, the BF256A.

First video is here https://youtu.be/tABjbg9rrsw

It now works between 116 KC and (say) 2 MC or 2.5 MC (in this setup) but can also work on much higher frequencies with smaller inductances.

Also on lower frequencies with coils that have a higher inductance compared to the showed pancake coil, say coils with a ferrite core. Test, try, experiment(!). Change say the 10 N capacitor to a higher value to get lower than 116 KC.

Say usable for a shortwave radio as Local Oscillator. Try, test, do some experiments to get to higher or lower frequencies with this setup. I am always interested in your experimental results.

Everything is told in the video, also the frequencies that you can reach with the pancake coil that is showed in this video.

Earlier relevant video about this 1 transistor FET radio oscillator:
https://youtu.be/tABjbg9rrsw

My You Tube channel trailer is here: https://youtu.be/xbgQ8T3oqh4 When you search, search always “NEWEST FIRST” to get the right overview. You can also search via the “looking glass” on my Channel trailer via keywords like ”audio”, “radio”, “amplifier”, “filter”, “Shortwave”, “transistor”, “FET”, “oscillator”, “generator”, “switch”, “schmitt trigger” etc; so the electronic subject you are interested in. My books about electronics & analog radio technology are available via the website of "LULU”, search for author “Ko Tilman” there.

https://www.lulu.com/search?adult_audience_rating=00&page=1&pageSize=10&q=Ko+Tilman

I keep all my YT videos constant actual, so the original video’s with the most recent information are always on YouTube. Search there, and avoid my circuits that are republished, re-arranged, re-edited on other websites, giving not probable re-wiring, etc. Some persons try to find gold via my circuits. I take distance from all these fake claims. I can not help that these things happen. Upload 2 May 2022.
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Audio
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