Build your own Crude FM Radio || FM,AM Tutorial
ฝัง
- เผยแพร่เมื่อ 19 พ.ค. 2024
- WARNING: Always check your local laws before using a frequency to transmit your RF FM signal.
RF Transmitter: rover.ebay.com/rover/1/711-532...
Previous video: • Electronic Basics #17:...
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Twitter: / greatscottlab
Support me for more videos: www.patreon.com/GreatScott?ty=h
More project information (parts list, schematic, .....) on Instructables: www.instructables.com/id/Build...
Parts (affiliate links):
Aliexpress:
1x LM386: s.click.aliexpress.com/e/_d7z...
1x 10kΩ, 1x 4.7kΩ Resistor: s.click.aliexpress.com/e/_dTP...
1x Variable Capacitor (1-30pF): s.click.aliexpress.com/e/_dWV...
2x BF199 Transistor: s.click.aliexpress.com/e/_dYR...
1x 25kΩ Potentiometer: s.click.aliexpress.com/e/_dTF...
2x 100nF Capacitor: s.click.aliexpress.com/e/_dU4...
1x 10µF, 1x 470µF Capacitor: s.click.aliexpress.com/e/_d7d...
Amazon.de:
1x LM386: amzn.to/1PkTgbX
1x 10kΩ, 1x 4.7kΩ Resistor: amzn.to/1A2KZzi
1x Variable Capacitor (1-30pF): amzn.to/1PkTwYi
2x BF199 Transistor: -
1x 25kΩ Potentiometer: amzn.to/1IrYFpR
2x 100nF Capacitor: amzn.to/1IrYXgf
1x 10µF, 1x 470µF Capacitor: amzn.to/1IrZ4Ze
Ebay:
1x LM386: rover.ebay.com/rover/1/711-532...
1x 10kΩ, 1x 4.7kΩ Resistor: rover.ebay.com/rover/1/711-532...
1x Variable Capacitor (1-30pF): rover.ebay.com/rover/1/711-532...
2x BF199 Transistor: rover.ebay.com/rover/1/711-532...
1x 25kΩ Potentiometer: rover.ebay.com/rover/1/711-532...
2x 100nF Capacitor: rover.ebay.com/rover/1/711-532...
1x 10µF, 1x 470µF Capacitor: rover.ebay.com/rover/1/711-532...
In this video I will demonstrate how a RF FM transmitter works and how this principle compares to the older AM. I will also show you how to build a simple and crude FM receiver which can even sometimes let you listen to your favorite radio stations.
Music:
2011 Lookalike by Bartlebeats
Killing Time, Kevin MacLeod (incompetech.com) - วิทยาศาสตร์และเทคโนโลยี
People are always impressed when i tell them i can build a computer, but i think it is much more impressive to be able to build a radio.
+About 47 T-Rexes Depends on which parts you use for that computer. If you only use 74xxxx logic and passive components it's not that easy.
Radios are really much harder.
Yes but making it from basic logic gates is much harder.
But digital electronics alone are not that hard, only diffrence from computer is fact that computer is programable, you need to ask yourself you really need you electronics programable
Depends on what you refer as building a computer (logic gates or just pc components)
About 6 or 7 years ago when I was in my late teens I was doing some soldering in an electric guitar while it was plugged into an amp. When I touched one of the pots with the soldering iron I got an AM station coming clear as a bell through the amp. I've been fascinated by radio ever since.
Good for you :)
We all remember the first time the radio bug bites us haha
There used to be an electrical axis box in the housing estate I grew up in that played the local radio station when ever you would lean you bike against it. Crazy 📻😲
For me it was uhf on an old TV if you tune to the Forest freq you could pick up cordless phones and baby monitors
Litterally same here. Got an Amp and was fucking around and kept hearing radio chatter. shit was wild
After the apocalypse, you're going to want this guy in your faction.
no you would want the guy from the channel "primitive technology" on your side
Id want both and the guys from top gear too just cause.
old or new? because both sets of guys seem quite useless to me tbh :P the old top gear guys are entertaining though, that's worth something
When the electricity stops...this guy will be no match for the high school dropouts.
Don’t forget about the hacksmith
_audio disabled due to copyright claim by Ascel Electronic on "1kHz Sine Wave"_
1 khz sine wave is my jam. My dad is always telling me to 'turn that noise down' and 'thats not music'. Ok, boomer.
@@rich1051414 only a boomer would say that.
@@flexairz Delete facebook, it rots your brain. Also, grow a sense of humor.
my favorite tune is "60hz 110v through human body"
+~☆ XzCraftP ☺♂ my favourite is 380v 50Hz 3-phase through the skin
+Bad Zombie well there's that.
+Bad Zombie Isn't that the best way to learn how to break dance?
I especially like the lyrics: "AAHHHHHHHHHHH!!!!!!"
+~☆ XzCraftP ☺♂ I like that genre very much. It's like a mix of electronic and death metal
Haha I swear you must be spying on my brain - I've been working on an FM tutorial for a while. Great video!
+Afrotechmods There is always space for two tutorials about the same subject. Looking forward to your video.
+Afrotechmods you guys are both awesome !
This comes from my heart.
I really appreciate your approaches ... I follow you both since some time and see how you grew with your projects, not just content-wise, but also in your videomaking and everything which is attached to the open-source youtubedriven diy education we're all witnessing at this time and age.
Good works and thank you !
2 legends in 1 comment . both of you guys are awesome
@@greatscottlab I agree, but some people are stubborn and think they are the centre of the universe so yeah
IT'S A SHAME THAT WE COULDN'T SEE A STEP BY STEP VIDEO ON HOW TO BUILD THIS FM RADIO
these videos are a lot of fun both for me and also for teaching my little nephew more about electronics and circuits and being able to talk to him over the phone while we both watch the same video and I get to show him the things my dad taught me at his age line building little am radios and transmitters and soldering and solar panels and simple circuits and now it's even super easy to build fm radios. I love helping him grow up learning to have FUN learning and tinkering and building electronics in functional applications.
Just studied modulation for my semester paper. And this video gave a pretty good knowledge about the practical use. Thanks Scott! 😊
The way this video highlights the innovative features of this device is truly impressive.❤
Thankyou very much for the video, I've always wanted to know how to make one, and you're a great teacher. Although most people don't know what you're talking about, it's not because you're a bad teacher, it's because some people don't understand the basics yet, but one day they will and realize how useful your videos are. Thankyou again :)
Indeed Greatscott! ,I was confused of all articles and tutorials around but your video really helped me alot to understand the concept.Thank u man
Using bolts to make coils is also a good option. Just wrap the wire around the threads.
Great video, as always!
I can't figure out what the coils do.
You pronunciation has clearly gotten better over the years. I love your content.
Impressive. In the calculation of inductance the winding number N should be squared, so according to the formula your inductance is around 0.6 uH instead of 0.15 uH. However, that formula applies for long coils, and yours cannot be considered as long, so your correct inductance is probably less than 0.6 uH (maybe closer to 0.15 uH, but that is a coincidence).
Very cool, This took me way back to the 70's when I used to build regenerative receivers to listen to ATC communications. They were actually very sensitive, could listen to airplanes tens of km away, but not too selective - adjacent frequencies were all heard at the same time. Next I started modifying comercial, cheap FM receivers to listen to ATC and *that* worked really well. They were very sensitive *and* selective, I'd redo the markings on the dial from 118MHz to 130 MHz, and when set to one ATC frequency I'd hear only that one, not nearby channels like the regenerative receiver. I even modified a few receivers for friends. Great days long gone.
Woah I just realized you are almost at 150k subscribers! Congratulations, man!
+mxims97 Thanks mate ;-)
ONCE AGAIN PROVED YOU ARE A AWESOME MAN...............................I CANNOT EXPLAIN HOW YOUR VIDEOS INSPIRING PEOPLE, IT IS WONDERFUL .THANK YOU, THANK YOU SO MUCH GREAT SCOTT.
Your circuit for the tuner has been around for a while. It may confuse people how it works and seems to be shorted out, but it basically turns two transistors into a "tunnel diode". The tuning is done by "Slope Tuning" which is really AM detecting, so will pick up noise as well. Tunnel Diodes are very expensive, so this circuit is great to play with to see how it works.
Good build - and I like your old school stereo! Thanks for sharing.
i don't make the projects you make of even try them. I just like to watch them as they are so educational.
Your channel is good. It gives me a lot of practical information. I can see the components and devices actually.
So, your Channel is trending again! All hail to the algorithm!
Hey GreatScott, let me ask you something. When you make your own circuit for some project like you do in most of your videos, do you do all the maths and calculus to know how much current and voltage is passing by every resistor or transistor? Because If you do, it would be very nice to show us that it's important to calculate everything.
I haven't seen a radio that big since the 80s. I like it.
I've rewatched this video many times while trying to create my own radio and have found it very helpful :). One error I found is that when inductance is calculated at @ 3:57 the formula shown should be N^2*mu_0*mu_r*A/l. The video has plain N instead of N^2. Nonetheless the calculated inductance of 1.478*10^-7 H is the correct value so the formula was only written wrong in the video, and as far as I can tell the rest of the calculations afterwards are okay.
Overall I loved seeing the process, thanks for the video!
I wish we had teachers like you!! :( awesome videos!
Dude this is awesome. I would have given my left nut to have lessons like these and others now available when I was 12. I built an fm transmitter with a store bought kit And a receiver and all kinds of stuff.
You should make an LED frequency equaliser that changes with sound, your videos are so cool!
Thanks for having shown the transmitter itself and where to buy it! I just had my exams on Schwingkreise and I always wanted to build something like that, but making an oscillator myself is the thing I didn't understand very well yet, I will study this circuit and try to understand it better, because even on google I couldn't find practical explanations of oscillator circuits
Nice video btw as always ;)
Hi GreatScott, thanks for all good stuff, I have learned so much from your videos. Please make tutorial on how to build Tesla coil, something simple that will work with battery power. Best of luck...
wow I understand how this works now, I didn't quite get it before when I made an FM radio receiver but since I started playing around with astable multivibrator circuits that are linked to a buzzer I understand now how you can alter the frequency of an oscillator in various ways.
Another super video,another nice project I may have to attempt to build,your costing me a fortune in electronics Scott 😉
+Robert Thomas Sorry about that ;-)
The outro speech is awesome!
My favorite song is Radiozurnal throught skin.
amazing pain when i touched AM 50kW transmitter in Topolna.
Great Video Dude. Very Cool Project. Keep up the great work. Nick.
I presume that this is a super regen receiver . I remember from my youth that a regen receiver could do both FM and AM and was a favorite in the early remote control receivers (manchester code types ) Lots of fun and thanks .
As always great information. Thanks for sharing.
the variable capacitor is not common in many electronic shop,it's also has a low range,so we should add the rheostat to improve the band.
i tried the circuit . and it worked ! . i had a little trouble with tunning but i manged to pick up 2 fm stations 88.2 _ 88.7 MHz
i actually didn't have the bf199 so i used a 2N3904 and it worked !! . but had to use a high impedance earphone .
you are awesome :)
Thanks for the feedback :-)
3:06 "PodenSchometor" - great one! (Immer noch besser als jedes Englisch, was ich bisher rausgedrueckt habe)
You can also use a hot blob of solder to strip enameled wire and wick it away after usually you can do it cleanly with any decent iron like the 888.
the Boy Scout handbook from the 60's (still available online) has a instructional tutorial about how to built a small radio requiring no power with everything hand made and which used a old spring metal bed frame for the antenna plus a old style low power clip on ear piece to listen to it...... and it does work, I built one for real when I was 12yrs old...
and my bad, this builds a AM radio not FM
OMG i LOOOOVE 1KHz Sine Wave! AC-AC is SOOOOO COOOOOL
Hi! it would be really cool if you could make a video about how exactly an FM receiver works? Like what happens so that a faster or slower carrier frequency results in an audio signal
Thanks!
*probes an FM trasmitter with a multimeter to understand how it works*
Next level right here.
Getting the whole circuit with nothing but the continuity function then flashing the schematic like it was trivial, now that's something.
Subscribed. Dude, you have my attention. I love your videos I found last week.
My only suggestion is to provably go a tad slower on the principles. Keep doing what you do
Great Scott,
You remind me with myself in 90's while doing RF projects,so I suggest you to make a tutorial "How to make a PLL FM OSCILLATOR",it'll be interesting,rarely on the TH-cam such projects...
Mal wieder KLASSE! // Great, ;D
What a legend this guy is.
I have no idea what you did here but it was cool. God bless legal cannabis. Cheers from Detroit.
This channel is really awesome!
Man, you are so complete!
Holy crap did you all catch that? I'm often like oh man I need something that's X mm in diameter. And I can never find it I'm always like, I should buy a set of punches so I'll always have an array of cylinders to use.
But he just used a drill bits, brilliant.
Love ur videos. But i like when you gradually improves the circuits until you get a viable option
"My favorite song called 1KHz sine wave" Man I love this guy!
Absolute banger of a tune
I loved the video!!!! If you could make a video on how to build a proper fm receiver it would be awsome!!!!
Very nice video demonstration..thanks for sharing !
Had a few attempts with transmitter circuits recently. My little, cheap, consumer radio is way more interesting now. 1 cm transmission is a win. I'm going for 5-10 meters or hoping.
I love them 1kHz sine wave beats, yo
thanks for your research about fm signal wave
Detectooth... depending on two different metal dentist restoration in tooth, it is possible to feel (& hear) AM vibrations when near broadcast Antenna!
?
you rock! thanks for your excellent videos!
Thanks your learned me very important thing
Very nice video, too good explained, do you have a detailed soldering videos about this item, I got lot of questions, but a step by step video about such Fm receiver like this can make clear some of those questions. Thank you
When the coil wrapping part came, the first thing came to my mind was vaping... :DDD
1:31 accent had me in tears lol
I love you soo much I can't wait for the next video
I was searching on Google how to make a FM transmitter and got this in my feed !!!!
I am getting TH-cam's algorithm slowly!
Good stuff you got over here.
Great video! Thanks for sharing.
I have small question, what power source should I use for this project?
Btw your videos are great😉
I have all the parts and building it NOW.
BiTe Agario YT how did it go???
I love your videos so much.
Very nice!
Can you make a video showing how to send data using Fm or AM?
love your channel
Great Video! Could you please make a tutorial on how to build a mini tesla coil? Would be really nice!
+Plankins It's already on my to do list.
Stone Cold7 lel
thats gotta be a huge todo list :D
Can you please make some videos, about electrolysis DC, and some explaination about the most fitting adjustable power supply to it. Thanks
Man I love the song 1kHz sine wave!! 🎶🎶🎵 😂😂
1kHz Sine Wave would be a great name for a metal band.
u r awesome scoot i like u very much u hv inspired me so much ;)
Hello GreatScott, since you appear to like wireless stuff could you make a video about the Xbee?
Btw I love your videos, keep going!
+Fluburtur I have two of them laying around. A video with those will surely happen someday.
GreatScott! Thank you, I will start doing Arduino stuff soon with a rather ambitious project and I must say I learned a lot thanks to you.
Stay creative and we can see you next time.. :)
Great video. Would really like to see more information about making the coil. I can never seem to understand them... Maybe for wireless technology :) Thanks
+Nick Farrow Someday I will make a video about wireless charging. There I will talk more about the constructions of coils.
+GreatScott! Super excited :)
+GreatScott! Awesome I can't even wait
+GreatScott! Video on wireless charger will be great! Looking forward.....
Could you please post the link where you found the fm schematics..i couldn't understand how's it called and hence couldn't find it..anyway great and educational videos, keep up the good work :)
I can't find sine wave on I-tunes : )
+TheRogerx3 Best one yet ;-) I like it.
GreatScott! can you please tell which software you are using for virtual circuit design ????
@@researchmode7065 Probably just easyeda. It's a free online software for circuit and PCB design. Basically, It's awesome!
Damn 1kHz sinewave, the bomb! Real underground music, what the 1337 kidz listen to. Almost as hardcore as static! ;)
Thats my favorite song too
I love your videos
Making a FM or even AM radio is one of the most basic things you learn, but that does not make it bad.
Great video, but what are the IC (mentioned as a substitute to the DIY FM receiver) that you did show at the end of the video ?
Hi :-)
Extremely snowy day here in Belgrade today, so I have played around yours schematics, a few days earlier TH-cam suggested me the video. It really worked, but I'm still confused about yours lm386 wiring... Why pin 7 is grounded through 100nF capacitor?? That pin is bypass... is this some sort of feedback?? Then, why lm386 is grounded through pin 3, and signal goes to pin 2? Maybe I'm just puzzled because I did not analyzed schematics deeply, but, when I see lm386 I'm just expecting good old power amp configuration...
Cheers, and keep posting!
Hello GreatScott, you can make a video about raspberry pi GPIO??
this was awesome sir
Great Scott!
Man, 1kHz sine wave. I love that song.
You also like 1khz Sine waves? They are my favorite!
Thanks Arnold !
Good information, thanks.
Nothing Beats 380V/50HZ... That Song makes my Body Dance :3