How to make the world's easiest Radio ! Do it yourself at home!
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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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@pedromeza2398 2 роки тому
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.
@bearwastaken6579 2 роки тому
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)
@ynrikotowers4374 2 роки тому
Yeah its sad that today we lack this things
@OnE61811301 2 роки тому
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?
@rdrgtreer 2 роки тому
That's what happens when the military complex & tax cuts tanks the entire public sector
@w8lvradio 2 роки тому
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
@kunasagaran5933 2 роки тому
More of these simple experiments or projects are required to create an interest in young kids. You have done an excellent job. Thanks.
@TrangertoR 2 роки тому
really man?! It is 21 century man. Maybe nobody told you but we know how earth become created.... It is not God...
@alansturgess1324 2 роки тому
@@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.
@mohamedmaishan5953 2 роки тому
Yess im 12 and im realy interested and im think im pretty good at this
@kunasagaran5933 2 роки тому
@@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.
@free-energy-systems 2 роки тому
Sadly "apps" have been replacing an interest in actually learning something.
@gabrielsantos19 2 роки тому
Looked for this a time ago, but didn't found. Now, UKposts recommended me this video. Better late than never :). Thank you.
@eventhisidistaken 2 роки тому
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.
@radioheadluke Рік тому
amazing! do you remember how you made those crystal radios to be so small?
@eventhisidistaken Рік тому
@@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.
@johnstonesakwa1.0 4 місяці тому
I’m still a kid and I love engendering
@familyfungi 2 роки тому
Perfect project for homeschooling. Thank you very much!
@CircuitCreator 11 місяців тому
The way this video highlights the innovative features of this device is truly impressive.❤
@Dan-gk7ti 2 місяці тому
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)
@daemonwhitebeard6590 3 роки тому
Just like a Coherer Receiver minus the Coherer Switch. It is also like a tiny Spark Gap Transmitter. Cool video.
@gigmach 2 роки тому
Best example of an amplifier I've seen on UKposts ever. Well done
@peteshugar7220 2 роки тому
but it is not an amplifier, it is a switch. comm 2nd class 50 + yrs
@rouxenophobe 7 місяців тому
@@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?
@patricktinkham 2 роки тому
I love this re-creation of the Hertz experiment! Well done!!
@MT-in3tp 3 роки тому
The simple amplification circuit was very interesting, you have re-invented hertz radio :-) большой молодец
@DavidALovingMPF102 3 роки тому
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!
@alf3071 Рік тому
what kind of transmitter is used in anti aircraft radars?
@DavidALovingMPF102 Рік тому
@@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!
@pianoguy5110 Рік тому
@@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.
@geoffroberts1126 Рік тому
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.
@MuratIsikHome 2 роки тому
I will use it to help my son's physics assignment. Thanks very much from Istanbul.
@verenagruber1890 3 роки тому
Grandios! Thanks a lot Kisses from Bern, Switzerland
@muhammadamjadfarooqmuhamma8128 3 роки тому
Very informative. Spasibo Thank you
@imdadali4292 2 роки тому
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.
@sivasakthisaravanan4850 16 днів тому
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.
@lacourarieeric7650 2 роки тому
vidéo très pédagogique et instructive la simplicité a l'état pure
@lorisvila8008 2 роки тому
It also helped me understanding how an antenna works !
@OldGrayCzechWolf 2 місяці тому
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!
@TorbenWelz 2 місяці тому
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
@OldGrayCzechWolf 2 місяці тому
@@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.
@amysue1616 Місяць тому
@@OldGrayCzechWolfI notice that knowing three languages have not prevented you from being a jack ass.
@charliebrownn6622 5 днів тому
@@OldGrayCzechWolfslow down turbo… it’s a UKposts comment, not a tesis bato, pls seat, relax and learn some Spanglish too 😎
@starbravo672 3 роки тому
Great discovery....! Great idea...! Thank you for the video...!
@w8lvradio 2 роки тому
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
@34leaderzal9incacucic5 2 роки тому
Hi my friend William :) how are you :)
@w8lvradio 2 роки тому
@@34leaderzal9incacucic5 Quite well, Thanks! Registered Nurse in the Covid Fight here, when I'm not working the Radio.
@34leaderzal9incacucic5 2 роки тому
@@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
@johnwest7993 Рік тому
I like it. A modern day version of the experiments conducted by Hertz proving the existence of radio waves.
@lukebailey6647 Рік тому
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 👌
@isabelleg.4294 2 роки тому
Great to know as we might need this soon for survival!
@cliveevrall1071 3 роки тому
Very interesting. Thank you.
@emoryschley5546 2 роки тому
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.
@PatrykPonichtera 2 роки тому
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 😅
@diegoteclas 2 роки тому
Autist hearing cannot separate the sounds and moreover all the sounds reverb in their head like hyper amplified and same intensity
@daisuki9296 2 роки тому
You're a very old man I think
@michaelschmidt7014 2 місяці тому
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.
@smartlearn9028 2 роки тому
Amazing..Ecallent...Great...As an electronic hobbiest and teacher i understand the great thought behind the demonstration... Thank you sir
@user-ww1gz6qh8e 3 роки тому
A very good idea. Thank you
@damocsell 2 роки тому
Great job thank you I learned something.
@panchitomontero9051 2 роки тому
Well, I was expecting a simple broadcast from a nearby radio station.
@sazurishin6688 Рік тому
Same
@zeez3139 Рік тому
@@sazurishin6688 still impressed
@delljopshorseracingtips4693 2 роки тому
Made it fantastic love it sound is best I have ever heard love it
@MrFreddiew1 2 роки тому
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.
@gullettr1 2 роки тому
Absolutely fabulous.
@ruismodok8860 3 місяці тому
Thank you so much of your content and your information. Now i'm understand about transmiter and receiver 😊
@MikaelOlssonUppsala 2 роки тому
A beautiful way of explaining how a transistor works
@justingreen8006 2 роки тому
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.
@alfonsedente9679 4 місяці тому
Duh! Ppl click on this to make a radio to listen with? Mabee because the thumbnail says "radio"? Not LED twinkle thing.
@barati270 3 роки тому
Thanks a lot. it was great as ever
@AaronSchwarz42 2 роки тому
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!
@Edwinlegters 2 роки тому
This is why I disliked it at first, but the content is so good that it deserved a like
@peteshugar7220 2 роки тому
but for those of who are hard of hearing, it is crap, it is just too hard to understand!!
@gordonwelcher9598 2 роки тому
Use a CK-722 transistor. The emitter to base voltage is lower. You will have to reverse the battery as it is PNP.
@Iridium43 2 роки тому
Yes Raytheon ck722 transistors. Barely working transistors sold for toys. Look up ck722 on UKposts.
@ToddHofer 2 роки тому
Classic Spark Gap transmitter. Nice job!
@marekcm1882 3 роки тому
amazing and so simple.
@darrenhumphris7522 2 роки тому
Great project easy and simple
@EikottXD 3 роки тому
This is awesome also loving the new dubbing, or at least new to me haven't been here in a while.
@jonkent928 2 роки тому
Thats so damn cool. Have to try this with my son
@jlrinc1420 2 роки тому
That was brilliant. Thanks
@dalebenton3354 2 місяці тому
done that before,Remember doing this when I was still back at School in woodwork and technology
@pby1000 3 роки тому
Very cool. I think I will try it.
@Berghiker 2 роки тому
With a coherer, a distance of up to 3m is achievable with long wire antennas connected to each end of the transmitter and receiver.
@antonio-c.o. 2 роки тому
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…
@Berghiker 2 роки тому
@@antonio-c.o. As far as I remember, I used an ignition coil.
@greenaum 2 роки тому
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.
@antonio-c.o. 2 роки тому
@@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 :-)
@greenaum 2 роки тому
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.
@CanadianSmoke 3 місяці тому
Excellent video... I remember hands on science in science class when I was younger.
@wildwoodmiami 6 днів тому
The professor made a radio from clam shells and coconuts on Gilligans Island.
@jimparr01Utube 2 роки тому
Ah-ha! Back to the original spark-gap transmitter - almost... Nice and useful clip Sir.
@anilshirsat4406 4 місяці тому
Very well demonstrated the concept of radio waves 👌👍
@fredsalter1915 2 роки тому
Fantastic video! Very motivating!
@satyamtiwari9816 2 роки тому
good to see it works actually i to have tried it.. thanks man
@Estabanwatersaz 3 роки тому
Greatest video. Thanks 🙏🏼
@MatthiasLenardt 2 роки тому
Very simple but effective experiment
@EVALOZIG 2 роки тому
It makes me think about new things 👍
@tbirdlow266 2 роки тому
Thank Roman very interesting !
@petersmith5199 2 роки тому
Excellent. Thank you!
@circuitbenda 2 роки тому
excellent , thanks for sharing
@Angelinuh2015 2 роки тому
Thanks im going to have my kids work on this with me.
@Peter-rz9ub 2 роки тому
GREAT JOB. THX TO SHOW US THIS. HAPPY NEW YEAR TO EVERYONE...
@nicholasorro1105 Рік тому
this is a wonderful and perfect video. thanks a lot for sharing it. Am Nick from Kenya
@stephenbrinckerhoff3510 2 роки тому
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.
@clarencealexander1093 2 роки тому
I am looking for a WWII version also.
@themartianway Рік тому
Fox hole radio.
@hokep61 Рік тому
@@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.
@laulaja-7186 4 місяці тому
Eggshell? I thought lump of coal.
@MuhammadDaudkhanTV100 3 роки тому
Awesome arts and crafts fun and good fun
@oqueedeuseoquechamadodeus5346 2 роки тому
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
@WJCTechyman Рік тому
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.
@pierpa_76pierpaolo 7 місяців тому
Interesting but I am interested in operation to cover a significant distance of at least 10 meters.
@VishnuSharma-ig7un 3 роки тому
Nice ....Good project ....
@d3ja527 3 роки тому
Awesome video😁 Respect from Serbia
@justacook6858 2 роки тому
Did in joy and respect the skill.
@brandonlaragirl Рік тому
Awesome, thanks for sharing!
@LaeeqKhan01 2 роки тому
Very interesting. Try to to explain theory of working too.
@neilfurby555 3 місяці тому
Excellent….well explained and easy to follow.
@billowens6295 2 роки тому
Fantastic, thank you
@pat3034 2 роки тому
Awesome ... a mini Spark Gap transmitter!
@wilsonmarinmontoya4318 3 роки тому
Gracias
@ed9763 2 роки тому
Well done. Very useful expt. to illustrate radio transmission to school kids.
@jfrphoto01 2 роки тому
Also, outlawed by local laws (in USA: FCC) and international law!
@cristianpopescu78 2 роки тому
This is a really awesome Projekt!
@user-ll5fp7mw6n Місяць тому
The most simple thing that made human live more confortable.a man made things.amazing AMAZING the simpliicity of this Discovery
@mukhtarahmad3532 2 роки тому
*_Thank for the video I wanted this experiment_*
@tanmuzik7821 3 роки тому
Thank you and subscribed
@TechsScience 3 роки тому
I haven't ever thought of it
@user-jx5nm6gb1y 5 місяців тому
More of these simple experiments or projects please
@haroonrashidraja9735 3 роки тому
Thank you
@billyblack3604 3 роки тому
Very cool video!
@Syedadilshah893 2 роки тому
Good work Roman👍
@neilfpv 2 роки тому
This is awesome!
@laxmikantpattar7096 3 роки тому
Supper.... For electronic subject beginner. My I use bc 547 transistor?
@Thebasicmaker 3 роки тому
Yes i think so...also 2n222 and so on
@laxmikantpattar7096 3 роки тому
@@Thebasicmaker thank you
@MisterDan 2 роки тому
Excellent!
@stephanwerick5495 Рік тому
Great demonstration
@primordial4310 7 місяців тому
Do you need the wood blocks?
@ayahsadam9817 7 днів тому
Nice sharing
@mikeooo616 2 роки тому
Very impressive
@grzondziele 3 місяці тому
With a self-made coherer (aluminium foil scraps in a small paper tube) and a little bit longer wires I get distance about 1 m between transmitter and receiver. Without transistor.
@rickpontificates3406 2 роки тому
Electromagnetic inductance is a beautiful thing
@mecca777 2 роки тому
We used to make these in Jr H high school back in the day
@josealbert4596 5 місяців тому
you are the new Rudolf Hertz . As receiver perhaps only is necesarry a mini neon lamp between the two arms of the dipole
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