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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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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Опубликовано:

13 июн 2024

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Комментарии : 654

@pedromeza2398 2 года назад

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 года назад

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 года назад

Yeah its sad that today we lack this things

@OnE61811301 2 года назад

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 года назад

That's what happens when the military complex & tax cuts tanks the entire public sector

@w8lvradio 2 года назад

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 3 года назад

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 года назад

really man?! It is 21 century man. Maybe nobody told you but we know how earth become created.... It is not God...

@alansturgess1324 2 года назад

@@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 года назад

Yess im 12 and im realy interested and im think im pretty good at this

@kunasagaran5933 2 года назад

@@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 года назад

Sadly "apps" have been replacing an interest in actually learning something.

@Dan-gk7ti 3 месяца назад

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)

@panchitomontero9051 2 года назад

Well, I was expecting a simple broadcast from a nearby radio station.

@sazurishin6688 Год назад

Same

@zeez3139 Год назад

@@sazurishin6688 still impressed

@Casual_laughter Месяц назад

Bro just made a switch, wasted 3 minutes of my life

@solocupp6120 26 дней назад

@@Casual_laughter Shut up.

@duaneritter3932 20 дней назад

@@Casual_laughter ok? This is still considered a radio even though your not hearing sound..

@jerryfacts9749 19 дней назад

In 1897 Hertz made the first spark gap transmission. He used a high voltage source with a spark gap in series with a coil forming a resonant circuit. He used an identical coil on the receiving end. Detection was with a coherer tube. He was able to transmit an electromagnetic wave pulse wave through the air to a distance of a number of meters across the room. This was actually the first man made radio frequency pulse. Very soon after different and much more efficient ways of detecting radio waves were innovated. It is interesting that with no resonant coil this experiment works. It is really a very crude inductive reactive transmission. It is like forming a capacative coupling using the air as a dialectic between the transmission and receiving antennas.

@eventhisidistaken 2 года назад

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 Год назад

amazing! do you remember how you made those crystal radios to be so small?

@eventhisidistaken Год назад

@@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 6 месяцев назад

I’m still a kid and I love engendering

@emoryschley5546 3 года назад

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 года назад

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 года назад

Autist hearing cannot separate the sounds and moreover all the sounds reverb in their head like hyper amplified and same intensity

@daisuki9296 2 года назад

You're a very old man I think

@gabrielsantos19 2 года назад

Looked for this a time ago, but didn't found. Now, RU-vid recommended me this video. Better late than never :). Thank you.

@MT-in3tp 3 года назад

The simple amplification circuit was very interesting, you have re-invented hertz radio :-) большой молодец

@DavidALovingMPF102 3 года назад

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 Год назад

what kind of transmitter is used in anti aircraft radars?

@DavidALovingMPF102 Год назад

@@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 Год назад

@@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 Год назад

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.

@patricktinkham 2 года назад

I love this re-creation of the Hertz experiment! Well done!!

@daemonwhitebeard6590 3 года назад

Just like a Coherer Receiver minus the Coherer Switch. It is also like a tiny Spark Gap Transmitter. Cool video.

@MuratIsikHome 2 года назад

I will use it to help my son's physics assignment. Thanks very much from Istanbul.

@CircuitCreator Год назад

The way this video highlights the innovative features of this device is truly impressive.❤

@vmcv3284 25 дней назад

in my early school years in Spain we always had from primary school to all the way high-school a class about creating stuff, from art to modeling to electrical stuff , wood working and many more things..

@jonkent928 2 года назад

Thats so damn cool. Have to try this with my son

@OldGrayCzechWolf 3 месяца назад

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 3 месяца назад

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 3 месяца назад

@@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 3 месяца назад

@@OldGrayCzechWolfI notice that knowing three languages have not prevented you from being a jack ass.

@charliebrownn6622 Месяц назад

@@OldGrayCzechWolfslow down turbo… it’s a RU-vid comment, not a tesis bato, pls seat, relax and learn some Spanglish too 😎

@markkinsler4333 Месяц назад

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.

@dalebenton3354 3 месяца назад

done that before,Remember doing this when I was still back at School in woodwork and technology

@stephenbrinckerhoff3510 2 года назад

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 года назад

I am looking for a WWII version also.

@themartianway Год назад

Fox hole radio.

@hokep61 Год назад

@@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 5 месяцев назад

Eggshell? I thought lump of coal.

@gigmach 2 года назад

Best example of an amplifier I've seen on RU-vid ever. Well done

@peteshugar7220 2 года назад

but it is not an amplifier, it is a switch. comm 2nd class 50 + yrs

@rouxenophobe 8 месяцев назад

@@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?

@verenagruber1890 3 года назад

Grandios! Thanks a lot Kisses from Bern, Switzerland

@gordonwelcher9598 2 года назад

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 года назад

Yes Raytheon ck722 transistors. Barely working transistors sold for toys. Look up ck722 on RU-vid.

@Berghiker 2 года назад

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 года назад

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 года назад

@@antonio-c.o. As far as I remember, I used an ignition coil.

@greenaum 2 года назад

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 года назад

@@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 года назад

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.

@lukebailey6647 Год назад

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 👌

@user-wu5ng3bw7k 2 месяца назад

Can we use an alternative in place of piezo ignitor? If so then which material should I use?

@imdadali4292 2 года назад

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.

@muhammadamjadfarooqmuhamma8128 3 года назад

Very informative. Spasibo Thank you

@michaelschmidt7014 4 месяца назад

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.

@lacourarieeric7650 2 года назад

vidéo très pédagogique et instructive la simplicité a l'état pure

@lorisvila8008 2 года назад

It also helped me understanding how an antenna works !

@w8lvradio 2 года назад

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 года назад

Hi my friend William :) how are you :)

@w8lvradio 2 года назад

@@34leaderzal9incacucic5 Quite well, Thanks! Registered Nurse in the Covid Fight here, when I'm not working the Radio.

@34leaderzal9incacucic5 2 года назад

@@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

@familyfungi 2 года назад

Perfect project for homeschooling. Thank you very much!

@cliveevrall1071 3 года назад

Very interesting. Thank you.

@isabelleg.4294 2 года назад

Great to know as we might need this soon for survival!

@elyy_wp 4 месяца назад

Hi! Does it relate to EM waves? Perhaps radio waves? How? Can someone give some explanations, badly want it for my research.

@champ3027 2 года назад

Hi sir, just wanna ask what are the materials needed in this project?

@ryan200978 11 дней назад

' Wow! Simply explained concept practically .. 🙂

@user-ww1gz6qh8e 3 года назад

A very good idea. Thank you

@alf3071 Год назад

do all radars have that gap to create the spark in the antenna?

@pierpa_76pierpaolo 8 месяцев назад

Interesting but I am interested in operation to cover a significant distance of at least 10 meters.

@damocsell 2 года назад

Great job thank you I learned something.

@chrislampkin7896 2 года назад

What happens if you turn the wires into coils and their are more windings in the secondary than in the primary? What are the optimal ranges for safe non burn out voltages of the transistor and coil? What LED runs at 9volts ?!?!?!?!

@papesldjnsjkfjsn 2 года назад

if you power the led for a very short period then it handle voltages above the 2V

@EikottXD 3 года назад

This is awesome also loving the new dubbing, or at least new to me haven't been here in a while.

@Angelinuh2015 2 года назад

Thanks im going to have my kids work on this with me.

@anilpatel9203 3 года назад

ANY other alternative for piezoelectric element?

@robomatt1600 3 года назад

Anything that makes a spark: Auto spark plugs, wool socks on acrilic carpet plus a grounded door knob, the sparker in a gas oven or grill, mint life savers...

@greenaum 2 года назад

All cigarette lighters with "electric" ignition use exactly that same unit, why is it you can't use one, Anil? They're extremely easy to find, surely everywhere in the world where lighters are sold. You could use a Van Der Graaf generator I suppose but it wouldn't be cheap or easy. As things go, it's a shitty transmitter anyway, utterly useless in practical terms. It just makes a good experiment to teach people, and happens to be what the earliest discoverers of radio used in their labs. Though in their case they used Van Der Graaf generators and the like, not piezo lighters which were not yet available. If not VDG, there were quite a few other high-voltage electric generators back then.

@CanadianSmoke 5 месяцев назад

Excellent video... I remember hands on science in science class when I was younger.

@martonziegler2181 2 года назад

This is exactly a repetition of the Hertz experiment with more modern tools.

@dxv1l_x 6 месяцев назад

Could i use an audio amplifier on one side and a speaker on the other?

@omarmohammad728 Год назад

Does this work with thin or brushed copper?

@laxmikantpattar7096 3 года назад

Supper.... For electronic subject beginner. My I use bc 547 transistor?

@Thebasicmaker 3 года назад

Yes i think so...also 2n222 and so on

@laxmikantpattar7096 3 года назад

@@Thebasicmaker thank you

@user-ll5fp7mw6n 2 месяца назад

The most simple thing that made human live more confortable.a man made things.amazing AMAZING the simpliicity of this Discovery

@ruismodok8860 5 месяцев назад

Thank you so much of your content and your information. Now i'm understand about transmiter and receiver 😊

@MrFreddiew1 2 года назад

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.

@Jemacaza 25 дней назад

Great experiment, also to spark children’s interest for physics

@sammyopoku6956 2 года назад

how do u make the light stay on for ever also can u use batteries in place of lighter igniter.

@justingreen8006 2 года назад

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 5 месяцев назад

Duh! Ppl click on this to make a radio to listen with? Mabee because the thumbnail says "radio"? Not LED twinkle thing.

@urbansnipertn 26 дней назад

Imagine attaching a latch circuit to the Reciever :)

@jenadolfo9358 3 года назад

what other type of transistor can i use instead of 2n 3904? pls help me

@MEMES-qu9wo 2 года назад

Anything but it should be npn

@Iridium43 2 года назад

Back in the 50s GE had the 2N107. Same junk as the Raytheon CK722.

@AaronSchwarz42 2 года назад

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 года назад

This is why I disliked it at first, but the content is so good that it deserved a like

@peteshugar7220 2 года назад

but for those of who are hard of hearing, it is crap, it is just too hard to understand!!

@jimparr01Utube 2 года назад

Ah-ha! Back to the original spark-gap transmitter - almost... Nice and useful clip Sir.

@oqueedeuseoquechamadodeus5346 2 года назад

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

@timmywusu4994 2 года назад

Isn't their a way to increase the range to be that of a RC and the transmitter replaced with another that does not need to be clicked many times just of and on. hum?

@ToddHofer 2 года назад

Classic Spark Gap transmitter. Nice job!

@marekcm1882 3 года назад

amazing and so simple.

@RalphFreeman-ok5of Месяц назад

Spark Gap Transmitters emit broad band EMC noise and so contravene many regulations. Wouldn''t recommend their use ?

@starbravo672 3 года назад

Great discovery....! Great idea...! Thank you for the video...!

@draugami 5 месяцев назад

A crystal radio would be a real radio receiver.

@TechsScience 3 года назад

I haven't ever thought of it

@regor2102 3 месяца назад

Lol, a spark gap generator. Nice!

@WJCTechyman Год назад

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.

@ducomaritiem7160 3 месяца назад

Hey, that's nice, thnx, I'll let my students make that!

@MatthiasLenardt 2 года назад

Very simple but effective experiment

@pby1000 3 года назад

Very cool. I think I will try it.

@wildwoodmiami Месяц назад

The professor made a radio from clam shells and coconuts on Gilligans Island.

@pat3034 2 года назад

Awesome ... a mini Spark Gap transmitter!

@smartlearn9028 2 года назад

Amazing..Ecallent...Great...As an electronic hobbiest and teacher i understand the great thought behind the demonstration... Thank you sir

@athensWEB 3 года назад

place 4 to 5 transistors with 1M base base boost , will achive super sensitivity upto 30 meters or more...is'nt it

@bidhanacharya7548 3 года назад

I don't think so

@athensWEB 3 года назад

@@bidhanacharya7548 ok..

@gullettr1 2 года назад

Absolutely fabulous.

@delljopshorseracingtips4693 2 года назад

Made it fantastic love it sound is best I have ever heard love it

@jlrinc1420 2 года назад

That was brilliant. Thanks

@anthonymartin777 6 месяцев назад

How can it works if you connect the positive of the battery to the emiter, it's a NPN transistor should be the negative.

@revathirohith3739 2 года назад

Could we use push button switch either than that lighter

@ok-eh7zm Год назад

what frequency does this transmit on ?

@wilsonmarinmontoya4318 3 года назад

Gracias

@justacook6858 2 года назад

Did in joy and respect the skill.

@petersmith5199 2 года назад

Excellent. Thank you!

@mikechappell4156 19 дней назад

Nice video. I wasn't aware that some lighters were piezo-electric. Audio could use some work though.

@douglaidlaw740 3 года назад

Do you really need to strip the insulation from the wire? It is there to prevent accidental short circuits.

@larryschillig 2 года назад

Only where the wires are soldered (Wielded).

@HumanBeingSpawn Год назад

I'm guessing the transistor outputs a small enough voltage for the LED? I remember burning an LED when connecting it to a 9V source

@appleyt6757 Год назад

no it's electromagnetic waves

@tinkerwithstuff 2 года назад

Heinrich Hertz setup 2021 version - with LED! :)

@barati270 3 года назад

Thanks a lot. it was great as ever

@MikaelOlssonUppsala 2 года назад

A beautiful way of explaining how a transistor works

@androtechrobo8483 3 года назад

Can I use BC547 transistor?

@amrsayed6677 3 года назад

i will try with it

@androtechrobo8483 3 года назад

Ok thanks

@fredsalter1915 2 года назад

Fantastic video! Very motivating!

@haroonrashidraja9735 3 года назад

Thank you

@sosscs 2 года назад

Where to get the lighter that has an isoelectric element in it? And why it has to be an isoelectric?

@mecca777 2 года назад

We used to make these in Jr H high school back in the day

@satyamtiwari9816 2 года назад

good to see it works actually i to have tried it.. thanks man

@GalaxyEMB 2 года назад

what was the element doing otherwise very helpful

@mukhtarahmad3532 2 года назад

*_Thank for the video I wanted this experiment_*