radio transmitter circuit and electromagnetic waves

We are building a LC-circuit into a radio-transmitting-circuit and explain how a radio works. The propagation of electromagnetic waves is visualized. An explanation of a receiver is also provided. (This is an old workprint from 2019. At the moment I am working on a more interactive version of visualization of electricity. So this project is still paused.)

[@bart8P]

Absolutely an amazing resource! What a great visualization, must have taken a lot of time, but very appreciated

[@kronenapp2918]

Thanks for the feedback, yes, it took some time. An update is on my to do list... but, so are some other projects.

[@matthewhoag2609]

Excellent visuals. It helps so much. I wish we’d had this technology back when I was in college. Well done!

[@kronenapp2918]

Thanks for the feedback.

[@soumyaranjandas2768]

The Best video to understand How Radio Transmitter works

[@kronenapp2918]

Thanks for your feedback.

[@Greg_Chase]

This design is based on tech originated in Germany:
1) thin metal layers (aluminum foil in our first device) each separated by an insulation layer. We used store-bought aluminum foil for each metal layer. This lamination of foil-insulator-foil-insulator-foil etc. sits horizontally on the workbench
2) signal generator supplying a small RF amplifier feeds into radial and horizontally-oriented eddy current coils that are immediately adjacent to, but do not touch, the foils lamination
3) a vertically-oriented, axial magnetic field passes through the center of the foils lamination
Right hand rule. The B field is vertical, the electric (eddy) currents are horizontal, resulting in the Lorentz force producing coherent accelerations of the charged particles in the foil lamination.
The thickness of the foil gives a 'skin depth' that indicates a running frequency (from the siggen to the eddy current-inducing coils) of 16.28 Mhz
This design was improved by:
- adjusting the dimensions of the foils lamination
- adjusting the frequency
- with a goal to produce resonant standing waves across the foils
We work at artificial gravity devices and this was our first attempt.
.

[@lindavid1975]

Bravo for explaining this principle by your knowledge of this subject - and the detailed logical exposition.

[@kronenapp2918]

thanks for the feedback

[@haggaibarasa3918]

The best cap for fixed frequency

[@balahmay]

I had always wondered how the oscillation started and what maintained it. So I found your explanation quite helpful. I can’t help but be curious now how this circuit would be changed for generating both side band and frequency modulation. Thanks for your effort here!

[@kronenapp2918]

thanks for the feedback

[@ariellopezcavazos472]

Thank you for doing this video I always wonder what was a Mixer for AM but never found information, Great videos.

[@mejiqal]

great lecture on radio waves...one of the few on the web who knows what he speak about generation of radio waves and how radio is work and what is radio wave....who understand what he explain and how the circiut work, then you understood the concept of radio wave production..and hence will be puzzled how much non sense on the web about radio and how radio waves produced on circiut level, because you understood the concept right...because the analog electronics circle he show can be done with transistor rather vacum tube..i mean if you understood what he explain..you understand all circles that produce radio waves...and all our communication in this world depend on radio waves...another point the more complex you digital or electronic circle its like alot of lines of code ..the less lines of code you have that do the same task, the more smarter you, the same with electronics, circle like he show very simple and do the task...

[@kronenapp2918]

thanks for taking the time to write a long feedback

[@GroverCricketDaisy]

Great explanation well done thank you for this visualisation

[@nuxboxen]

Excellent video, very very good explanation.

[@user-lb8bg6kj9m]

Thank you so much sir.
I will have to go through this video once again to have a good understanding of it.

[@yolamontalvan9502]

Great video. Easy to understand the concepts. Thanks.
You forgot to mention the software you used to make this excellent video.

[@mynameismynameis666]

great presentation and even more endearing accent

[@mugetsu-sennin]

Thank you for the great desire to share your knowledge even with the language barrier. I am very thankful for the information very helpful to me, you have one new subscriber

[@kronenapp2918]

Thanks for the feedback.

[@cascadeanalog320]

Thank You Very Much Sir !

[@sambitprakashmohanty4103]

❤❤❤Love you so much sir. Your explanation is ok but animation is too good.

[@theoryandapplication7197]

thank you for sharing it is useful video

[@atmasinghsidhu4680]

Thank you for sharing the video. Concept of operation explained clearly. One question, how much power is consumed by the RF transmitter. Such circuits used in TV remote controls. Looks like the power consumed all the time Hence how long the battery can last?

[@MrRObot-bin]

Excelent work! I just want to know something. At what age do they teach something like this?

[@kozza-6894]

Thank you!!

[@kronenapp2918]

Thanks for your feedback.

[@subhajit615]

Thanks 🙏

[@experimentariumciencia]

Dear, Great video. Best regards ivan Antoniolli from Experimentarium Brazil

[@kronenapp2918]

Thanks for the feedback.

[@MrWrzaSQN]

Nice animation. In my point of view the thing that could be better is speech presentation but I think it is a matter of time and amount of uploading video. Keep it up! :)

[@kronenapp2918]

Thanks for the feedback. I hope to find one day the time to create a remake of this video. However I am working on other projects visualizing electricity at the moment, which appear more interesting in my eyes. So this might take some time.

[@lightofscience2435]

Very valubal video 🙏❤️

[@kronenapp2918]

Thanks for the feedback.

[@surendrakverma555]

Very good 🙏🙏🙏🙏🙏

[@kronenapp2918]

Thanks for the feedback.

[@ragd4L]

Wonderful!

[@kronenapp2918]

Thanks for the feedback.

[@kronenapp2918]

Thanks for the feedback.

[@pedrorosagonzalez7609]

Nice video

[@kronenapp2918]

Thanks for your feedback.

[@lawliet2263]

Which circuit simulation app is this? Btw your explanation was terrific!

[@kronenapp2918]

Thanks for the feedback. This is an animation I programmed. I would like to create an update on this topic one day with a more interactive version. This version was only a prototype and was not well designed considering performance. At the moment I am working on another project considering electricity simulations. So this topic may have to wait for an update.

[@academiadaeletricidade]

@@kronenapp2918what software do you recommend for make a simulation like this? I make electricity videos for my channel

[@mariocraftgames]

Gracias, finalmente entiendo cómo funciona el Senku's phone de Dr stone

[@kronenapp2918]

Answer on the translation by google: Yes, it is the principle of the version in Dr. Stone. However it got not depicted accordingly at Dr. Stone.

[@esrefcelikcelik8789]

Friction is resistance for the electric circuits.

[@panduwilantara3070]

what tool you do this simulation?

[@noobtrader2209]

danke !!!

[@kronenapp2918]

Thanks for the feedback. Gern geschehen.

[@tangoalpha8381]

👍👍👍🏆🏆🏆

[@sambitprakashmohanty4103]

This video based on amplitude modulation. Request for next video based on frequency modulation. Please sir

[@kalpakumara8870]

vacum tube we have no then we cant under stand please discribe transister cuircute

[@linq8977]

Lovely German acsent 😂❤

[@bart-v]

ja, it iz reelly vonderful!

[@AlexBurtonMusic]

Can we transmit audio without vacuum tube with this circuit?

[@kronenapp2918]

This method is obsolete. Modern transmitters do not use any vacuum tube. Transistors as an example have in many cases similar options.

[@AlexBurtonMusic]

@@kronenapp2918 I'm sorry. My knowledge of English is not at the academic level.
The LC circuit can oscillate. This leads me to think that I can directly modulate the oscillations emitted from the LC circuit.
Am I wrong?
LC tank circuit is used in spark gap transmitters and it provides a certain selectivity on frequencies in some degree.
Also, the radio frequencies emitted by the spark gap transmitters were modulated by Reginald Fessenden with a carbon microphone. So I thought radio frequencies could be modulated very easily and all I needed was an oscillator.
Can you help me understand this, please? Can we transmit audio with just LC circuit and microphone?
Because the carrier wave required to be modulated is produced by the LC circuit. Isn't that true?

[@kronenapp2918]

@@AlexBurtonMusic I also understand only partially what you are trying to say at this hour.
I assume the answer is no: You do not take into account, that the solo LC Circuit power/energy will become lower and lower with each cycle, if not pumped up with electrons regulary. You need something like a switch/vacuum tube that allows this pumping up at a very specific timeframe.
The Spark Gap Transmitter, as far as I remeber, has nothing regulary repeting, so this problem does not matter. You may send an ON-signal with each button pressing, but not a continous audiowave, if I remember correct.

[@AlexBurtonMusic]

@@kronenapp2918 Thanks for the answer. ^^

[@chipcurry]

I’m sorry, I did not understand it. You started off with “this is the basic LC circuit“ I wish you could’ve said a little bit about what an LC circuit is and why do they work - and which component is the battery.

[@kronenapp2918]

L stands for the coil and C stands for the capacitor. It is an prototype which is still on hold because of other projects which are more important for the time being in my eyes. I cannot improvise an explanation in the english language for those components in a view lines.

[@thomasauslander3757]

Electrons don't move in a circuit..

[@user-uq2we4fw1t]

👻?👻

[@ubiquem5964]

in sis wideo... räidio.. meine güte. wotsch my oser wideo.. versuchs wenigstens ey-

[@maciej12345678]

boring as hell