How to make the world's easiest Radio ! Do it yourself at home!
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- เผยแพร่เมื่อ 15 พ.ค. 2024
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Embark on a journey with our mesmerizing video as we unveil a plethora of ingenious life hacks, DIY projects, and captivating tools that promise to elevate the quality of your daily existence. Brace yourself for an infusion of creativity, making every day not just simpler and more convenient, but downright fascinating.
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TIMESTAMPS:
This video is made for entertainment purposes. We do not make any warranties about the completeness, safety and reliability.The following video might feature activity performed by our actors within controlled environment - please use judgment, care, and precaution if you plan to replicate.
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In the 1960s elementary schools a lot of your builds were common practice during science class, this built a hands on science foundation in many young Americans. It's sad to see that today's young students don't receive science hands on like it was done in the 1960s.
heck it took me 2 months of research to find one video about the spark gap radio (which i followed, built one, and made a video)
Yeah its sad that today we lack this things
But OMG it's soooo dangerous - what if your priceless spoiled brat child gets stabbed by those deadly sharp antennas? What if they get zapped? Can you imagine the trauma?
That's what happens when the military complex & tax cuts tanks the entire public sector
We got that science in the 60's in our schools for one and only one reason: Sputnik. They were determined to outdo the the USSR. And as a result? We got GREAT Science training. Were can a kid go with that? Well...you just never know ...;-) But I owe EVERYTHING to that training. 73 DE W8LV BILL
More of these simple experiments or projects are required to create an interest in young kids. You have done an excellent job. Thanks.
really man?! It is 21 century man.
Maybe nobody told you but we know how earth become created.... It is not God...
@@1islam1 Enough of the evangelizing.. There's always someone who wants to quote the Quoran, bible, Tanakh etc. etc. as if some random quote is proof that a god exists and all we do is validate that through everything we do. What a load of YKW. Now let's just enjoy the creativity of this demonstration.
Yess im 12 and im realy interested and im think im pretty good at this
@@mohamedmaishan5953 it is a great start. Keep experimenting. Read more. Lay your hands on every book on electronics and science. Eventually, you will become a great man and I wish you success in all your endeavours.
Sadly "apps" have been replacing an interest in actually learning something.
This was the sort of thing that got me interested in engineering when I was a kid. Very nice! Another simple one, if you haven't already covered it, is a crystal radio. I used to make them as a kid and made them fit inside a ball point pen (except the earpiece, which stuck out the bottom) and sell them to class mates. ...that plus simple shockers made from nothing but a relay and a battery.
amazing! do you remember how you made those crystal radios to be so small?
@@radioheadluke I tore apart a small transformer from some broken something, and carefully coiled the wire around the ink tube until the local strongest AM station came in - basically the coil arrangement is a fixed tuner, meaning you only need the coil, the diode, and the earpiece to pull in that 1 station.
I’m still a kid and I love engendering
Looked for this a time ago, but didn't found. Now, TH-cam recommended me this video. Better late than never :). Thank you.
I love this re-creation of the Hertz experiment! Well done!!
The simple amplification circuit was very interesting, you have re-invented hertz radio :-) большой молодец
My brother and I use to buy Galena radio, very simple device you put a wire to ground, small earplugs in your ear, twiddle a knob who travel along the Galena stone, to find a station and you had a receiver.
Then with old tech books, we build basic amplifiers, who needed a 3V battery plug the outlet to it and a speaker the other side and we had proper radio :o)
Just like a Coherer Receiver minus the Coherer Switch. It is also like a tiny Spark Gap Transmitter. Cool video.
Best example of an amplifier I've seen on TH-cam ever. Well done
but it is not an amplifier, it is a switch. comm 2nd class 50 + yrs
@@peteshugar7220 I know nothing about electronics, but the effect looks like amplification to me. He could receive a weaker signal further away and make the LED flash. He increased the sensitivity of his receiver, would you not class that as an amplifier?
Spark gap transmitter. Very good. Same can be seen in a car if you use copper wires going to the spark plugs. You will hear the pop pop pop on the radio. Very early jamming technique too. Good job!
what kind of transmitter is used in anti aircraft radars?
@@alf3071 Holy Cow! LOTS! TOO big of a topic to discuss here and I don't know it all! I barely know anything.. 6 years only in USAF EW. Use google. There is Search radar, Track, Scan, Guidance, Radar for guns (AAA) on the ground, some on jets. Radar for SAMS. Lower frequencies for searching the skies. Higher freqs on missiles..Read up on ECM. Read up on CHAFF..cool stuff. research Range gate pull off and repeaters, traveling wave tubes and magnetrons. Viet Nam ECM pods. Ok, that's a HUGE assignment for you. and don't electrocute yourself!
@@alf3071 Anti-aircraft radars typically use a type of transmitter known as a magnetron. A magnetron is a type of vacuum tube that generates high-power microwave pulses. These microwave pulses are transmitted from the radar antenna and bounce off objects in the air, such as aircraft, and are then received back by the radar. The radar system uses the time delay between the transmitted and received signals to calculate the distance and direction of the aircraft. Magnetrons are commonly used in radar systems because they are capable of generating high-power microwave signals at a relatively low cost.
Mmm.... I'm thinking this is not radio as such. It's a DC pulse that produces an EM field. But it's a great way to illustrate how it works for children.
Well, I was expecting a simple broadcast from a nearby radio station.
Same
@@sazurishin6688 still impressed
Bro just made a switch, wasted 3 minutes of my life
World's first radio transmission and reception was demonstrated by Jagdish Chandra Bose in Kolkata (then Calcutta), India. He was able to ring a bell in the next room across the walls remotely using his radio circuit. This was before Marconi officially "invented" radio.
The way this video highlights the innovative features of this device is truly impressive.❤
Grandios!
Thanks a lot
Kisses from Bern, Switzerland
Very nicely done spark gap radio build. To think that this was how it all started, early Marconnni sets worked this way. Even the signals sent from the Titanic were sent using a variation of this. Kudos!
truly fanominal how far we've come isn't it, I can't wait to see how far we'll make it in my own lifetime
@@TorbenWelz Phenomenal, not fanominal. Learn proper English and spelling and people will respect you more. English is the third language I learned and I think it is very disturbing that I have better English skills then 99% of Americans.
@@OldGrayCzechWolfI notice that knowing three languages have not prevented you from being a jack ass.
@@OldGrayCzechWolfslow down turbo… it’s a TH-cam comment, not a tesis bato, pls seat, relax and learn some Spanglish too 😎
In fact, if the Titanic hadn't had radio (owned and operated by the Marconi Co.) nobody would have known what happened to the ship.
I will use it to help my son's physics assignment. Thanks very much from Istanbul.
This is difficult to understand with TWO audio tracks competing with each other. The one in the background should be deleted so it doesn't interfere so much with the narrator.
In Poland for foreign movies we have a narrator reading over the original audio exactly like this, one narrator for all the voices, imagine having this for every movie on TV 😅
Autist hearing cannot separate the sounds and moreover all the sounds reverb in their head like hyper amplified and same intensity
You're a very old man I think
I am 73 now however in the 1960's in the St. Louis area we had the St.Louis Post Dispatch Science Fair. The Post Dispatch was a local newspaper in St. Louis . All of the metro area school districts would hold their own fairs and the First Place winners would then go to the St. Louis Post Dispatch exhibiting at the Washington University Field House. It was very exciting for a young student I went 4 or 5 times.
Perfect project for homeschooling. Thank you very much!
Very interesting. Thank you.
Great discovery....! Great idea...! Thank you for the video...!
Very informative.
Spasibo
Thank you
A very good idea. Thank you
Thats so damn cool. Have to try this with my son
An excellent modern presentation of Hertz's Classic experiment, but with dipole instead of loop, and lesson in amplification. My hat is off to you, Sir! All the Best! 73 DE W8LV BILL
Hi my friend William :) how are you :)
@@34leaderzal9incacucic5 Quite well, Thanks! Registered Nurse in the Covid Fight here, when I'm not working the Radio.
@@w8lvradio Very Well dear William, thank you an you know i watched every day a lot of videos talking about Covid from the begining to right now ;) and this is what i'm interested in
Fantastic video! Very motivating!
vidéo très pédagogique et instructive la simplicité a l'état pure
This is awesome also loving the new dubbing, or at least new to me haven't been here in a while.
Classic Spark Gap transmitter. Nice job!
amazing and so simple.
Interesting but I am interested in operation to cover a significant distance of at least 10 meters.
Ah-ha! Back to the original spark-gap transmitter - almost... Nice and useful clip Sir.
We have to take more care in order to keep fingers and/or hands away from antenna of the transmitter when pushing or releasing , otherwise a high voltage shock will welcome to experimenter due to dealing with 'high voltage spark gap generator'.
But very good way of practical.
Thanks a lot. it was great as ever
Great job thank you I learned something.
Can we use an alternative in place of piezo ignitor? If so then which material should I use?
You know what this reminded me of? Tesla's transmission of electricity through the air, its literally that and easily understood now.
I like it 👌
Made it fantastic love it sound is best I have ever heard love it
It also helped me understanding how an antenna works !
Great to know as we might need this soon for survival!
Thank Roman very interesting !
Very cool. I think I will try it.
Greatest video. Thanks 🙏🏼
I like it. A modern day version of the experiments conducted by Hertz proving the existence of radio waves.
done that before,Remember doing this when I was still back at School in woodwork and technology
Do you need the wood blocks?
Absolutely fabulous.
excellent , thanks for sharing
Amazing..Ecallent...Great...As an electronic hobbiest and teacher i understand the great thought behind the demonstration...
Thank you sir
The professor made a radio from clam shells and coconuts on Gilligans Island.
A beautiful way of explaining how a transistor works
Great project easy and simple
That was brilliant. Thanks
Very cool video!
Excellent. Thank you!
Hi! Does it relate to EM waves? Perhaps radio waves? How? Can someone give some explanations, badly want it for my research.
I like that you can hear both languages at same time -- doing the audio in the native language & the English as subtitles would be even better // something to consider
Cool video & nice DIY content education!
This is why I disliked it at first, but the content is so good that it deserved a like
but for those of who are hard of hearing, it is crap, it is just too hard to understand!!
Hi sir, just wanna ask what are the materials needed in this project?
Awesome, thanks for sharing!
Very simple but effective experiment
Excellent video... I remember hands on science in science class when I was younger.
Who would vote thumbs down? This is a great demonstration and would be an intriguing experiment for kids. I would have loved this as a child and it would inspire many to search out why and how it works. Many would go on to become physicists and engineers and technicians.
Duh!
Ppl click on this to make a radio to listen with?
Mabee because the thumbnail says "radio"?
Not LED twinkle thing.
Wireless power transmission at its simplest...Tesla Bifilar coils might/should be better, might need a resistor (50 Ohm) to protect the LED. Nice little project, thanks for the video.
Use a CK-722 transistor. The emitter to base voltage is lower.
You will have to reverse the battery as it is PNP.
Yes Raytheon ck722 transistors. Barely working transistors sold for toys. Look up ck722 on TH-cam.
Does this work with thin or brushed copper?
Supper....
For electronic subject beginner.
My I use bc 547 transistor?
Yes i think so...also 2n222 and so on
@@Thebasicmaker thank you
A spark gap transmitter and receiver, in essence. My have we moved forward from Guglielmo Marconi's experiment on Signal Hill in what is now Newfoundland and Labrador, Canada at the turn of the last century.
GREAT JOB. THX TO SHOW US THIS. HAPPY NEW YEAR TO EVERYONE...
Very well demonstrated the concept of radio waves 👌👍
Good work Roman👍
Awesome ... a mini Spark Gap transmitter!
do all radars have that gap to create the spark in the antenna?
Well done. Very useful expt. to illustrate radio transmission to school kids.
Also, outlawed by local laws (in USA: FCC) and international law!
Awesome video😁
Respect from Serbia
Great demonstration
Spark Gap Transmitters emit broad band EMC noise and so contravene many regulations. Wouldn''t recommend their use ?
Awesome arts and crafts fun and good fun
Could i use an audio amplifier on one side and a speaker on the other?
I haven't ever thought of it
how do u make the light stay on for ever
also can u use batteries in place of lighter igniter.
It makes me think about new things 👍
what was the element doing otherwise very helpful
Nice info, thanks :)
Very interesting.
Try to to explain theory of working too.
Thank you so much of your content and your information. Now i'm understand about transmiter and receiver 😊
Nice ....Good project ....
Pro kau boss
Thank you and subscribed
good to see it works actually i to have tried it.. thanks man
The most simple thing that made human live more confortable.a man made things.amazing AMAZING the simpliicity of this Discovery
this is a wonderful and perfect video. thanks a lot for sharing it. Am Nick from Kenya
Thanks im going to have my kids work on this with me.
I'm not sure if this is the easiest. I do remember hearing about radios made by POWs during WW2 using a needle, a double-edge razor blade and an egg shell. And I know from personal experience that a thermostat with spiral coiled spring can produce nearby radio signals. It took me a few days to track this one down.
I am looking for a WWII version also.
Fox hole radio.
@@themartianway Correct! The hardest part could be finding an old, steel, double edge razor blade. Not sure if the more modern stainless ones would work. Would also need old style carbon or crystal earphones. Don’t think the modern earphones would be of the correct impedance.
Eggshell? I thought lump of coal.
Fantastic, thank you
This is awesome!
Excellent work! 😊
With a coherer, a distance of up to 3m is achievable with long wire antennas connected to each end of the transmitter and receiver.
The distance at which a spark can be detected by a coherer system would depend on the energy of the spark generated by the sender. The Calzecchi Onesti coherer could react to Lightnings many kilometers away…
@@antonio-c.o. As far as I remember, I used an ignition coil.
People stopped using coherers once thermionic valves aka "tubes" were invented, making amplification possible. Round about the First World War. Rather than a coherer, properly tuning the transmitter and receiver, and a properly designed reciever, would give a greater transmission distance. Or at least would do in 1915 or so when the airwaves were pretty quiet. Nowadays none of that ancient stuff would work, cos there's so much radio noise now.
There are certain areas of the world, where all electronics are banned, because people want to use radio telescopes there. These are giant dishes that pick up the extremely weak radio waves emitted by stars, rather than their light. If you want to do that, you need quiet, so a few places have ordnances in place. Mostly nobody lives there, but you get the odd back-to-nature weirdo.
@@greenaum True enough, but by the same token people stopped using thermoionic tubes when the transistor became available... but here we are talking of the coherer. BTW, get a lead sulfide crystal, a battery, a piece of wire, a variable capacitor and an earpiece and you will get a tunable radio receiver without the need of a coherer, a thermoionic tube or a transistor :-)
The point of mentioning the thermionic valve is that it obsoleted the coherer there and then, right back in 1915 or whenever. Coherers were ridiculous. Right on the edge of functional. Really the issue is just an LED makes a lousy detector, but they're cheap and ubiquitous, often there's one in the same lighter you got the sparker out of.
So trying to "improve" a circuit that was designed to be made from bits of scrap for pennies, with something as tricky and expensive as a coherer, doesn't serve any purpose. It isn't supposed to be a practical device, it's just a demo using the level of technology Herz had, without requiring a VDG generator, which is certainly old tech, but horribly expensive then or now.
This thing is in the sweet spot historically and technologically, and most importantly, is made only of bits that can be found inside disposable lighters, and a bit of wire.
muito bom trabalho. é lançado no ar uma centelha de potencia, o trânsito recebeu a interferência, assim penso eu, mas não entendo muito pra explicar, mas é por aí. gostei
Very interesting.👍☘️
cool radio signal!