3D Printed Radio | No Batteries
ฝัง
- เผยแพร่เมื่อ 9 ม.ค. 2018
- I'm thrilled to unveil my new 3D printed AM radio! I was inspired by the diy crystal and foxhole radios of the early 1900's, but I created my own design to be as simple as possible. I made a few animations to help assist in explaining how this mystifying device can work with so few parts. I hope you like it and thank you for watching!
Download 3D file:
www.thingiverse.com/thing:275...
Materials:
1 Piezo Earphone
1 Coil of 24 AWG Magnet Wire (aka Enamel Wire)
1 1N34A germanium diode
1 aluminum foil
1 paper clip
1 package of Hildie & Jo 45 Cord Ends (5x10mm Springs)
These should be easy to find online. The springs I got are sold at Joann Fabrics. Search Silver Cord End Springs but any similar 5mm diameter springs should work.
VellemanStore blog: www.vellemanstore.com/en/blog... - วิทยาศาสตร์และเทคโนโลยี
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you forgot to mention that the diode must be a germanium one to be efficient. for example an 1N34 or an 1N270 would wourk perfectly
Yes you are correct and I listed the 1N34A diode in the video description. The same one I used.
Or a Shottky diode BAT85
The zero-bias MOSFETs are insanely good too. No battery required.
@@ZEEROXCD-izzy that's not nerd speak, that's engineering...
May I ask what the diffrence is from using a silicium one?
You don't need a 3d printer for this, really its the same concept as a foxhole radio. You could use a toilet paper tube for the coil if you wanted to.
Correct, there are many creative people that can make this with everyday items but I wanted to design and 3d print my own so it's easy and consistent to operate.
Than. Fucking. You. I remember getting those kits from hobby lobby as a kid lol
Thank you
@Evil Koala There is no fun in that. It's so cool to make one!
@Evil Koala Good idea.
But let's see you run it with 0 external power, other than what was coming over the airwaves, as was done in this video.
All in all, maybe you could just be impressed.
Or silent. Either is acceptable.
Came in for the 3D printing, stayed for the crazy black magic prehistoric electronics. Instant sub.
I'm glad to hear that! :)
Not gonna lie the bootleg diode was cool
You would be surprised at the bootleg components people have made like paper potentiometers, paper resistors, homemade paper in oil capacitors, and lightbulb vacuum tubes.
*Seriously?!*
You built your own diode?!?
Jeezus.
Yup! It's not as good but still it works!
3DSage damn impressive!
@@3DSage I think If you put your razor on a stove top heating element or an clothes iron you could have a lot more control on your oxide layer, it would also be more uniform and wouldn't be contaminated from combustion products. This would make for less tuning for your diode. At least that my thinking.
The point contact diode is one of the key components of a foxhole radio, they're built exactly this way with a razor blade and pencil 🙂
this is nothing new its a fox hole radio. theyve been around since before ww1
This is probably the most wholesome comment section on TH-cam. Everyone is just so positive😂
That's what the diode is for :-p
Nah not me. I'm freaked out
I can change that
Adam Hults Omg this video was so trash man wanna beef me yeah?
Lol jk
I agree
It's been two weeks, and we still aren't over how cool this is.
Thank you for saying that! :)
@3DSage It's been 2 years and it's still cool!
Adonas Official 10 years and its still cool!
@@pugg5ter542 are you a time traveler? Cool bro
I've been building xtal radios for decades and I'm still amazed by them!
Ahh, the memories... I built a crystal radio set like this, out of wood and wire, with the crystal diode back in the 70's when I was 11. I used the center screw of a wall socket coverplate for the ground connection, and connected the antenna to my metal bedframe. It worked like a charm!
Holy crap this video is so good! I wish you would have gone into more detail about how it works though. Instant sub!
Oh didn't expect to see you here
Hi
Omg dude I WATCH ur vids!!!!!
Omg I love your channel
Wew
radio galena
This is probably the coolest, most interesting thing I've watched on TH-cam in the past maybe 8 years. Very nice stuff, thank you.
omg wow thank you for such an amazing compliment! I hope to keep posting cool videos :)
A minor piece of advise, if you make the foil thinner widthwise, you will make the sound clearer, due to more easily honing in on only the broadcast while avoiding static, which is potentially helpful without precision tuning.
That's so cool. I have to view this again. Great Work. LIKED and Subscribed :D
Thank you so much! :)
No Problem, keep up with the excellent work. :D
Again*
What if you don't have a computer?
AGANE
"if you don't have a 3D printer then.. why not they are cool"
*Crippling poverty*
That and my room is tiny and can barely fit the essentials I already have. Even if I could afford a 3D printer, I'd have no place to put it and the various printing powders.
@@Dargonhuman powders? how much money do you have that you would think of buying a powder 3d printer lol
an ender 3 is only 200 and is the most affordable starter printer on the market with good print and build quality snd a decent build volume
I got the ender 5!
@@mjyanimations1062 Back to the "crippling poverty" thing - if I had 200 to drop on a 3D printer I would, but after paying rent, bills, buying food and setting aside bus fare (I don't even have a car), I have about $80 left to my name, and half of that goes straight into my savings account.
Good to see that, even in the 2010's (and 2020's) crystal set radios are still a popular project.
Yes, I remember 51 years ago when as a kid I built my own crystal radio. I had a collection of different types of rocks that were glued to a piece of cardboard. I took these home from where I was during a vacation. I then used one of them to build a crystal radio. It was a quartz crystal. Worked like a charm. The quartz crystal rock became the diode. The rock was placed in some aluminum foil , and a wire pocked at some point of the exposed area. Even changing the point of poking, changed the channel being received. Also, of course back then, one had wrapped the wire around a toilet roll cardboard. For the ear piece, I used part of an old telephone ear piece.
"Don't have 3D printer? why not?"
sorry i don't speak money
Agreed
Third World
*_bUt YoUr PrOfIlE pIc Is LiTeRaLlY mOnEy_*
@@eliel0503 Can have some?
you can get a 3D printer for like 200 dollars
Did you make your own semiconductor from the oxide of iron and graphite. That's on another fucking level.
Yes that's correct. It was not as good as a diode but it did work! :)
My dad once made a similar radio when I was a child. He used a variable capacitor attached parallel to the inductor instead of a tapped variable inductor to scan the band. It was basically just small metal sheets on two rods, and they can turned into each other kinda overlapping (like two combs) without touching each other.
In high school "electronics" class we built what we were told was a mosquito/bug repeller. I was just a basic circuit with a battery and a speaker that emitted a high pitched squeal, but if you got the on/off switch in the perfect position, you could pick up radio on it. Never understood how it worked...
Meet again, the Piezo Radio.
This is your daily dose of Recommendation
Awesome build dude! I forgot how there ever even existed radio sets that could work off a crystal (or germanium diode) and the radio frequencies themselves. I am 32 and had one as a kid but the level technology has been exponentially improved year after year and I feel like so many inventions could be a perfect candidates to experiment with utilizing old concepts like this. Bravo my dude, Bravo!
Wow! I am extremely impressed!! May i showcase your project in a video? ( of course, i will mention your channel and Thingiverse project ) keep up the great work! :)
I would be honored if you did! So yes you can and thank you for mentioning my channel in the video. You are super talented so keep up your awesome projects!
Keystone Science is also one of my fav channels
Hi @@3DSage, may I also mention your project (TH-cam-Thumbnail with link, and thingiverse link) in a talk?
I didn’t know anything about radio waves and radios until now 😁👍
classes would be so energetic and excited with projects like this. we get lots of programming assignments but this is wow.
HE BUILT. HIS. OWN. DIODE.
My gosh... if scientists knew about this kind of diodes back then...
they did ... foxhole radio. Original radios from Tesla and Marconi ...
@@wanderingzanzey2126 still, everybody was using radio vaccum tubes
@@vilkillian No, Germanium point-contact diode were a very real thing :)
@@vilkillian These kind of diodes, called crystal or "cat's whisker" diodes, are actually quite a bit older than vacuum tube diodes. However, because they were *very* finicky and delicate - they had to be tuned by trial and error, and even tiny vibrations could knock the contact point off the tiny crystal defects that create the diode effect - and nobody actually understood *how* they worked (since the quantum-mechanical understanding of semiconductor physics would not be developed until much later), they were eventually replaced by vacuum tubes in most applications. And most importantly, with vacuum tubes you could not only make diodes, but *triodes* (analogous to modern transistors) - allowing you to not only rectify, but *amplify* received signals, so you could pick up radio stations further away and didn't need to listen with a sensitive piezo earpiece.
The most important thing is missing - AM broadcasts (long or medium waves) must be available in your area. The FM will not pick up the crystal unless you live directly at the transmitter. Many people were disappointed with the construction of the crystal because it did not work because most transmitters work with frequency modulation. In that case, it is better to use your old mobile phone, which has an FM radio and works without the Internet.
4:18 Unless you have pex tubing for the water supply and pvc for the waste water.
Eh, there are many ways to fix that. Stick a wire into the ground on a outlet, that works too. Neutral would also work as it goes to ground as well, but you must make sure you don't have a miswired outlet that has hot ground reversal. It could..... hurt a bit otherwise. Or, if you're outside, take a 3in nail and pound it into the dirt and pour a cup of water on the spot. Tie a rock to the antenna and throw it over a tree branch. There are many ways around this problem. d:
I considered that same issue.
Kallvin - if you had a transformer, light bulb - lamp, aquarium - air pump, water filter pump, heater, kettle on the same circuit 😉
I built one of these many years ago using plumbing pipe to form the coil, 1N34A diode and a variable capacitor to allow more selectivity with tuning 🙂
Yes, the "2 inch" plastic plumbing pipe makes a great coil form.
Variable capacitors are getting hard to get. Home made ones can be done. Home made variable inductors are also within the reach of most.
This is amazing. I love when people go in to the basic of the working stuff.
WHO THE HECK THUMBS DOWNED THIS! IT's the coolest thing on the whole web! I'm SO making this, and thank you so much for doing the razor blade pencil bit. I heard stories of how POW's in WW2 did somethign simuler to make a radio and always wanted to know if I could do the same in a desert island/alien interment camp :)
Thank you so much for saying that! :) I'm proud of this video and all the work I put into it. I'm glad you enjoyed it!
Dean Jones a few 66 gf
I think some radio making company got some employes to dislike it since they might lose money.
It's up to 96 "thumbs down." That's insane. I don't see any specific complaints, so what gives? There's nothing really wrong with this design.
I think thumbs-downs are sometimes just people trying to train the TH-cam algorithm what topics don't interest them. It doesn't necessarily mean the content was bad.
Things we used to make 65 years ago. The art of creating seems to have gotten lost. Good on you for trying to revive this simple project. A lot more fun than computer games.
It would help if you first label the spring points ANT, GND, and EAR/TUN, so you know what goes where. Maybe a diagram of the diode, to show how it gets connected, etc.
The other radios I've seen like this require a crystal. It's super neat that you didn't need one! Well done!
macgyver would be proud
I really liked that show so thank you!
I just finished a ham radio class. Came across this video and it just fascinated me. So incredible. Great video.
I've seen a lot of takes on this project. This is a real upgrade to existing resources with novel modifications. Thank you 3DSage.
Thank you for saying that! I'm glad you liked it.
"we don't need a battery, we will just use the strength of the radio signal"
connects to 100watt guitar amp :D
radios that use batteries also use it for amplification i guess, so project did use an external energy source
but i get why you said that, great work man
awesome video, keep up the good work!!
Perfect for zombie apocalypse
For listening to zombie talk radio haha.
3DSage no so he can find people alive
He predicted the current crisis.
My first thought
@@_stealth_y no because litterally all communications are fine and not every virus can be compared to zombies or an apocalypse
This brought back memories of those Electronics kits you could get as a kid, I'd completely forgotten about the piezoelectric earpiece and how uncomfortable it was for my ear as a kid. Great video!
This would be an awesome first project to do once I get a hold of a 3d printer and great desktop! Simple and you explain things soo overwhelmingly well!
I'd love to see how well this works on my 100ft shortwave antenna.
Razor blade: I have a blue houes with a blue window..
Blue is the colour of all that I wear...
...
I'm blue, dabadee dabada
Eiffel 65 - Blue (da ba de) 🇮🇹 🎵 😁
I did this with my grandpa! It was sooo coool! He explained me everything!
The way this video highlights the innovative features of this device is truly impressive.❤
My dad is, and knows a group of DXers. I'll share this with them when I have the opportunity.
ok cool! I hope they like it.
I've heard stations over a hundred miles away on my crystal radios
try adding a mag-loop antena: quite easy to make with house items too. you'd get rid of the earth and have better seletivity.
It's been over 2 years and we STILL arent over how cool this is
This is the most MacGyver thing i've seen on youtube!
Great job!
I absolutely love this! Well done! I hope this video takes off for you! :)
Thank you Geeksmithing! :) I'm glad to hear people enjoy watching videos like this.
Imagine doing that and hearing despacito when it starts to work
hahahaha alexa play despacito... then alexa tunes the homemade radio to find the station playing that hahahah
Yep, that's definitely a comment from 2018 lol
LOL
This makes the circuitry much easier to understand
Thank you! I am glad to hear that.
People like you are what keeps me alive. Absolutely genius.
wow very nice comment, thank you!
The thing that you heard at the end is the Vietnamese radio sound. I know that beacuse am Vietnamese
Oh that is interesting. I couldn't make out what they were saying. I was so excited that the razor blade worked haha.
I know what they said. They said: 3DSage is the best channel ever !!!! 😲😲😲😲😲
Amazing Vietnamese sound !
@@3DSage I'm two years late, but I'll fill in what the guy on the radio said: "Hello Ladies and Gentlemen, you are listening to 1560 AM and it is 4 o'clock in the evening."
@@dungeondragon85 very interesting being capable of understanding to something that "poor" (I am talking about the quality of the audio)
Awesome and impressive :)
Thank you! :)
Super cool video man👍 I'm no electrical engineer but I didn't know you could do this with without a power source! These are the videos I love the most. Thanks man! 👊
Radio waves themselves are the power source.
They come flying by and hit your antenna.
When they do they make a small voltage on the antenna.
If the station is 560KHz AM then the tiny voltage is AC at 560KHz.
Usually there is also a ground connection on the other end of the coil.
The result is that the station tries to make an AC voltage at 560KHz appear across the coil.
The diode picks off the peaks that go in one direction so the earphone doesn't get the 560KHz.
The AM modulation makes the peak voltage vary with time and this is what you hear
BTW there are likely better designs you can 3D print or make out of other stuff.
A cylinder is a better coil that a square cross section one.
Somehow its so cool cause of the pure quality, definitely love it❤️
you're saying you can just get electricity from radio waves even if a small amount?
#радио #хобби #радиохобби #сделайсам #homemade #handmade #электроника
Да. Дожили, до времен когда детекторный приемник можно выдать за одно из чудес света. Но, настоящее чудо, это как послевоенные советские дети сами делали детекторы для таких приёмников, с помощью самостоятельно изготовленной термитной смеси, за чем шёл длительный процесс подготовки сварившегося кристалла и контактных полупроводниковых точек на нем.
#magurin nobody cares what they’ll you you are saying
The Netflix film “All the light we cannot see” brought me here. In the movie the soldier had to make a radio out of random parts like this.
This takes me back to when i was a kid, i built a few of these back then.
This is awesome. I once got the same effect by using a pair of speakers that were not plugged into anything, carefully positioning the wires made a very very faint sound. This was about 6 years ago, i honestly thought it was magic at the time. It's happened since, but I knew what was happening then. The question remains: why did standard 8 ohm speakers pick up AM signals strong enough to make them sound?
Wow that is interesting. I have not heard of that. I'm sure some speaker designers account for that and make sure that doesn't happen. That would be fun to recreate.
I've also been able to pick up raido waves with my electric guitar when it was plugged into an amp. I think I was also touch a radiator (ground) with my feet.
I had a problem with a 2W amplifier and speakers, which did pick up radio pretty well, and In addition to the sound I put in, I was sometimes greeted with the bbc while changing the volume.
Maybe you live(d) near a broadcasting tower and the signal was very stronn or something amplified it. I also heard of someone being able to listen to radio by placing a pot on the stove
Back in the day (1950s), people with metal fillings in the teeth near an AM broadcast tower could pick up the station with their teeth and actually hear the demodulated audio. Kinda spooky until they figured out what it was.
What kind of lighter was that? I want one!!
Spark Multi Tool Luxury Lighter. I always see them at the check out counter at Walmart.
Having a mini torch or a lighter like that one can be infinitely useful. Also they don't produce soot like regular lighters.
The springs are absolutely genius!
Thank you! I'm proud of that idea too :)
Ooh, a crystal radio. We were making those as kids with a toilet paper tube, old copper wire and a diode.
This was back in the 60's.
A 47k-100k resistor parallel to the crystal earphone should improve this
Great! :)
Someday I'll use this in a zombie apocalypse
This is an interesting new take on a very old electronics project.
When I was a boy, this was the standard first ever electronics project only without the 3d printing. I remember stringing a great long wire that I'd got from unwrapping the transformer from an old television I'd found from a tree at the end of our garden. I vaguely recall making the cat's whisker out of a piece of coal but the details are rather hazy now.
Wow i'm glad to hear this brought back those fun memories! This is a fun project and I hope people find it entertaining and learn something from.
Loved the diode, great example of how things are made.
The other was great too but the diode was the icing on the cake,
Thank you for saying that. I'm glad you liked it.
can you use an led for the diode?
That would be interesting if that did work. I think an LED would draw too much current for this simple circuit. That is why they recommend the diode provided. Maybe I will try it and let you know.
The forward voltage of a LED is probably way too high. The used diode was a point-contact german diode. These have a very low forward voltage, often as low as 0.2 V. Maybe you would be able to receive a radio station with it, when you live really close to it.
i like your cat
He is a cool cat. I could make a blooper reel of all the times he tried to "help" me as I film these videos.
This is pretty cool, I'm amazed at how many people are blown away by this when it is very very old technology,its just a crystal radio. I built one of these with an electronics kit I had when I was around 6-7 years old. I miss those kits, sadly I don't think they make them any more. Im definitely not knocking the video, but I'm seriously shocked at the lack of knowledge kids have these days. My dad even told me he had a kit to build one of these when he was like 8-9 years old living on a farm and would lay in bed at night listening to it.
There is so many things for kids out there to learn today that these older projects can slip through the cracks. I'm using an Etch A Sketch in my next video and i'm debating if I need to explain what it is for the younger crowd who has never used one. There is a lot of things out there to learn so I am happy if this video teaches someone something new to them.
note depending on your kitchen sink it might not be grounded. e.g. mine has a section of plastic pipes and rubber hoses, so it's actually isolated. but you can actually buy mains wall plugs that only have the ground pin connected, not the power, so you can use one of those to safely ground your device.
I love how this guy assumes that there’s no reason that someone wouldn’t have a 3D printer. Like, yes, they’re great, I love mine, but a lot of people don’t have the disposable income to spend on a 3D printer, especially people who would be interested in a solder-free DIY electronics project and therefore wouldn’t be very invested in mechatronics.
I don't have one... It's just 150$ for the most basic models, but I still can't justify that amount of cash for something I just won't use much. And the printing plastic isn't free.
$20 a kilo for a good basic filament shipped to you is about what you should expect to pay if you live in the US. €20 in Europe will get you the same. Depending on how much you print, a kilo lasts a long time. The only issue is that you need to spend at least another $20 for every color you want, and if you want to try out exotics like bronze, or engineering plastics like nylon, you’re going to pay about twice that. So I would say that 3D printing isn’t expensive if you just need to print stuff like this, or maybe the occasional Baby Yoda.
An ender 3 (a solid first printer) and a kilo of bog-standard PLA runs you about $200; if all you want to do is make stuff like this video, then you’ll get a lot of mileage out of just that. It’ll probably come out to around $10 a month, which, compared to a lot of other hobbies, isn’t too bad.
@@you_just One day :)
@@you_just 20$ is really expensive :/
really dont see how a 3d printer was needed for any of this.
considering the scratch built nature of all the other parts, why would you go to the effort of using an expensive 3d printer for the plastic parts when they could easily be made out of junk too?
Its relatively inexpensive and fun.
I dont think you understand what the word "relatively" means. when compared to a paperclip, a pencil, a piece of tin foil or any of the other components used in this video, a 3d printer is "relatively" extremely expensive actually
This is what TH-cam was made for. Thank you! 🙂
I do not upvote terrorists
@@Mikewee777 Who said I needed your stewpeed "upvote"?
*not only did I learn something really cool but I actually impressed my teachers*
Reads title: No batteries!?!
Sees him connect it to a faucet: 😡
@PhonieZGaminZ True but it's kinda lame how it will be tied to a faucet. Much more portable with batteries.
@@TristanSamuel it's just ground. Literally put the wire into the ground if so desired. Just the facet is conveniently there.
@@someonesomewhere3817 Where's the power, then?
@@TristanSamuel As explained, from the strength of the radio.
@@someonesomewhere3817 True
1:11
"but why?"
it's called poverty
the cats whisker radio. nice to see it updated
Is anyone else amazed on how amazing this is omg technology is crazy
"basic components"
3d printer
So you 3d printed a *_case_* for a radio. This is cool but it's still clickbait dude.
A lot of people don't know about crystal or foxhole radios so I want to introduce that to them in a fun way and by using the modern 3D printer.
I appreciate that, and I'm not trying to hate, but wanting people to see your content doesn't excuse a misleading title. I came to this video specifically to see if 3D printers were capable of printing electronic parts (I know very little about them). This isn't a "3D printed radio", it's a 3D printed plastic shape, which you then built a radio around. It's an amazing device absolutely, but none of the actual radio is 3D printed. I'm sorry but I just felt that needed mentioning. This is cool, high-quality content, and it's tainted by the clickbaity title!
Do you see the thumbnail of the videos before you watch them or you just read the title?
Well Im now getting a 3D printer for my birthday this had made me see how useful this thing is
This was much more easy that I through, now I can believe that scenes of people making radios almost from trash in like, prisons or similar xd
So I have a funny story to tell that relates to this project. I actually had a toaster that I had to hide away in certain cabinets because it would pick up the local AM station if it was anywhere in the kitchen. Unplugged, sitting on my counter in the kitchen, it would project the local AM stations sound into the air, it was pretty weird. Anyway great video and I'll probably make this just for fun (minus the razorblade diode part). Great project!
Man, you're the coolest guy over the Internet
This is so great, I showed this to my family (We already have the parts, electronics!!) Printing the pieces right now, Easy sub!
yes!! I'm excited for you haha. I can't wait for you to make this!
Does it work?
I made one of these in one of those retro 100 in 1 electronic experiment kits, but the parts were all prebuilt you just had to move around the wiring for each experiment. I remember being mindblown that it worked with no batteries!
I once saw something similar in an old science magazine, tried to replicate it but, there hasnt been many AM radio stations here in a few decades.
6.30 Cue "The Archers" theme music (British viewers over 40 years old will understand). Great presentation 3DSage, thumbs up.
I made one of these in school. I was fascinated by the fact that there wasn't a power source other than radiowaves.
I have no idea about any of this but I am intrigued
Your Channel ist GREAT and PERFECT Thank your for your work🙏🏻
I saw this project at an old 1970 greek sience book. Good job
nice. I like how people creative can be. Why do people dislike this video?
I'm glad you liked it! Thank you for the nice comment.
@@3DSage oh thanks. I'm thinking on getting a 3D printer myself.
@@petmop1309 You should! I'm so glad I got mine.
A good modern take on the ol' razorblade and pencil trick!
Very well done! I was screaming you didn’t tell us what kind of diode but someone already said what kind.
I made a radio like this when I was a kid. great for apocalyptic days.
Thats the coolest lighter I’ve ever seen.
Just like we did it back then, you could make a tapped coil (or just tune an untapped one with a ferrite rod) and print your own variable cap (possibly with gearing) to make it easier to tune. Nice find on the diode btw.