I also really like this content, congratulations on the channel! I have several videos of electronic circuits, mainly of homemade radios (homemade) where I make available the schemes and often the layouts of the PCB. Hug from Brazil!
Good video 🙂but some wrong informations! This crystal radio mainly catches AM broadcast bands mainly and you need less turns for higher frequency (to catch FM)because the inductance is low. And the output impedance is to high, this can only drive crystal earphones without any power, not 'regular headphones'. To drive 'regular headphones' you need to connect FET transistor instead of germanium diode.
true but not always, I was able to do it with old telephone head peace that had 2" diaphragm. Crystal headphones are the best in sound quality and have higher impedance. Difficult to buy today in India. A regular earbud does not work. Only AM works. A better design is to have gang capacitor to tune, rather than the coil.
This stuff you make never work, because the first thing is instead of using piezoelectric microphone you using a microphone which has coil and magnet and need much more current to work The second thing is the antenna should be longer at least 10 meters even when you near the station not the small coil like this
It is a "somewhat" fm tuner, with no filtering unit. Nor any amplifier. Hence so much noise. But great attempt. Keep posting. So much to learn from you.
Dear sir ji aap se aise faltu vidio ki ummid katai nahi thi ! Kyon logon ka time kharab karte hain aap?? Ye ko radio circuit nahi balki amplifier k audio input ko milne wala signal hain. Jab ham ek high power amplifier k audio input ko ek lambe coiled wire se jodkar unchaa utha denge to usko medium wave ki RADIO SIGNALS milti hai aur output par ek se adhik frequency sunai dete hain. Logo ka kimati samay kharab maat kijiye.
The crystal radio you made requires a sharp pen-like point on the tuning coil for better performance. It looks a bit loose. A flat piece is not recommended for this type of radio; it needs to be sharp to penetrate the rolled wires individually and capture the radio frequency. I made these during high school and still have my old one. its only for AM not for FM.
Sir is it possible to catch signal without crystal head phones, By the way what are you making should be Cristal radio which was used during the world war 2 after foxhole radios if I'm not wrong.
there are two dedicated plates in earphone for VCC and GND it wont work without external power and power recieved from elemagnetic waves are very low then how it will work?
@@sandeshms2148 but not enough as much as 3.7v. It can only generate some mV only. You'll Always need an amplifier to the output in order to listen in properly.
This is crystal radio which catches only local AM/MW Radio Station, better if you had simplified it by using just OA79 Crystal Diode that works as Local Oscillator.
Sir can you help me make a control circuit . which is operated by mobile and it starts fist to inform by measege power ready, over load , circuit healthy condition and good condition of starter ready for start to water pump.
All the details are given in the circuit.....
sir mobile network booster bnaiye plz 👌🙏
Sir me apka bda fan ho gya
👌👌👍👍
I pod banaiye
Purpose of pyramids and indian temples
Extremely simple radio, pretty impresed by how simple it is with the frequency tuner. Great invention.
I used to build those radios 40 years ago using OA71 Diode, the (103pf) capacitor is actually 10000pf, English sub will be good idea
40 years only? In India check out praveen mohan channel, this was used 5000 years ago or more
Oa71 looking very nice i made radio. When my age 6 year
What is the purpose of the capacitor? Sorry for my ignorance (beginner here).
@@robo19895000 years ago yea stop believing in conspiracy theories it’ll do you a world of good :3
5000years ago k insan kaun sa channel sunta tha FM yah kuch aur ???
5000years puran headfone kaisa dikta tha zara batiyeah please.... 😮
Very good project 🤩🤩🤩✌️
I also really like this content, congratulations on the channel! I have several videos of electronic circuits, mainly of homemade radios (homemade) where I make available the schemes and often the layouts of the PCB. Hug from Brazil!
Good video 🙂but some wrong informations!
This crystal radio mainly catches AM broadcast bands mainly and you need less turns for higher frequency (to catch FM)because the inductance is low.
And the output impedance is to high, this can only drive crystal earphones without any power, not 'regular headphones'. To drive 'regular headphones' you need to connect FET transistor instead of germanium diode.
true but not always, I was able to do it with old telephone head peace that had 2" diaphragm. Crystal headphones are the best in sound quality and have higher impedance. Difficult to buy today in India. A regular earbud does not work. Only AM works. A better design is to have gang capacitor to tune, rather than the coil.
This stuff you make never work, because the first thing is instead of using piezoelectric microphone you using a microphone which has coil and magnet and need much more current to work
The second thing is the antenna should be longer at least 10 meters even when you near the station not the small coil like this
Nice video, basically it's an old crystal radio set. Its not 103pF capacitor it's a 10nF capacitor. This circuit only works for AM radio waves .
thanks for the info but i am able to use it with my 16mhz audio transmitter so it also work with mw radio
But crystal radio works with only Crystal earphones and a huge anteena is needed
Super sir ..i likes your all video
सर आपका aksperiment बढ़िया हें 👌👋😍🙏😘👍🌹😂🥰😄
Excellent brother
👌👌👌👍
Bachpan me science project book me dekha tha or banaya bhi Par chala ni... par Ab chal jayega
Us time pata b ni tha diode, capacitor kya h...
Love your channel bro.
Sir Explain how the variable capacitor in the radio works. For tunning
Sir what is your qualifications
I want to be like you
@Icy he is just asking coz he want to learn that
The way this video highlights the innovative features of this device is truly impressive.
Please use thin tunning rod for fine tunning
Ap se bahut hi sikh ne ka milta he thank you sr
Can you please tell why we are using diode in it and what are the no .of turns in each coil
Diode is used to convert the full wave ac to rippling dc and capacitor is used for smoothing it
Speechless ,, seriously you are a scientist ♥️,,
This is called a radio crystal set. The circuit power is taken from the same rf waves just in case you do not know.
Seriously I don't know, but it's not your problem man,
If you can't help or motivate please don't show up your knowledge.. it's waste man...!!!
It is a "somewhat" fm tuner, with no filtering unit. Nor any amplifier. Hence so much noise.
But great attempt. Keep posting. So much to learn from you.
You vary vary good cantanyo
أنت جيد جدا استمر القادر يوفقك
How many turns in secondary and primary diamenting of coil wounding menterial!!!
Good 👍👍👍
Aapka bahut shukriya sir please ap our Aisa video banay
plz,, make a mobile network tower
😅😆😂
Op
👍
Lol
Sir I will support you
Dear sir ji aap se aise faltu vidio ki ummid katai nahi thi ! Kyon logon ka time kharab karte hain aap??
Ye ko radio circuit nahi balki amplifier k audio input ko milne wala signal hain.
Jab ham ek high power amplifier k audio input ko ek lambe coiled wire se jodkar unchaa utha denge to usko medium wave ki RADIO SIGNALS milti hai aur output par ek se adhik frequency sunai dete hain.
Logo ka kimati samay kharab maat kijiye.
ذ ءخءؤخ
ذ ءخءؤخ
Sahi kaha bhai
Fack vodo
How much turn are you give on the secondary and primary coil
Reply me please
Number of turns for primary coil and secondary coil, was not mentioned in the video. Can you please give the number of counts or turns, for that coil.
Primary coil 25 turns and 2nd coil 90 turns
Big fan sir ji..#respect
पिछेवाला circuit बढ़िया है!!
Nice video 👌😎😎👍😁🙏👍
Ram ke ram kaho. Ji sir bahut badia mini radio apne banaya hai .wow thanks sir
The crystal radio you made requires a sharp pen-like point on the tuning coil for better performance. It looks a bit loose. A flat piece is not recommended for this type of radio; it needs to be sharp to penetrate the rolled wires individually and capture the radio frequency. I made these during high school and still have my old one. its only for AM not for FM.
Nice👍
bhai aap inn project ke bare me jankari ya data kanha se lete ho . inn project ka source kya hain jnha se aap ko knowledge milta hain inhe banane ka
Really.... A century old tech you are showing here.
This type of radio was popular in 1920.
Sir headphone nahi chalenga use crystal earpiece(piezo buzzer) for better voice
Kis kisko pata nahin hai ki Bina battery Bina light ke koi bhi upkaran nahin chal sakta hi
Vai you are a genius bro
you have to ground it for less noise.
Very good 👍
Sir kitna mhz tuk frequency pakad sakta hay?
Nice vedio sir.esi trah se 1.5v ya 3v fm bana kar dikhaiye.plz sir.
Can you please make English translation to all your videos
Good job
Good project but why here is so much noise when I made it my self i do not have noise like that. I use hi gain amplifier.
I like your room , 😂
Can you explain in very very detail of how its working on board or on blank copy. I would love to
Sir is it possible to catch signal without crystal head phones, By the way what are you making should be Cristal radio which was used during the world war 2 after foxhole radios if I'm not wrong.
there are two dedicated plates in earphone for VCC and GND it wont work without external power and power recieved from elemagnetic waves are very low then how it will work?
He just made a good look using the regular earphones. One needs an amplifier to listen such low signal.
Sir ji ismay kitnay turns laganay hai primary or secondary coils may please batadijiyay
Nice👌👌👌👌👌👍👍👍👍👍
Kya baat h bhai mehnat krte raho
Thumbnail very nice
Foltou uma boa antena ai mais este receptor e top funciona perfeitamente eu mesmo ja fiz mais 50 parabéns
Sir this is an AM envelope detector
Can we use 104 pf capiciter
very very good
Jo MP 3 ka mana sinhnal kasa acha kara please batay Bhai FM ki audio ko acha kara
4:37 WAHT IS ANT SIR ?
Ant or antenna is a component/pinout type
good
Headphone Bina power kaise chalega ??
Whi to😆😆
It will create enough power from electromagnetic waves which used to send radio programs
@@sandeshms2148 but not enough as much as 3.7v.
It can only generate some mV only.
You'll Always need an amplifier to the output in order to listen in properly.
@@anoopmishra26 not even mV.. may b uV
@Muhammad Salim 😁😁😁 osm
वाह्ह्हह्ह्ह्ह क्या दिमाग़ है 🤝🤝👌👌👌🤔
Hatsoff bro. Continue like this with new inventions
this was being used since 5000 years ago in India
Tq u sir is video ko banane ke liye
Kitni frequency genrate hoti hain..
This is crystal radio which catches only local AM/MW Radio Station, better if you had simplified it by using just OA79 Crystal Diode that works as Local Oscillator.
Thankyou kanti sir ...make this kind of video
th-cam.com/video/ZOjiGSaL0qs/w-d-xo.html
digi radio
So the Primary and Secondary coils are not connected?
Nice video
can we use schottky diode instead?
Ye jo almoniam Hai Kya iske badle loha use Kar Sakte Hai
Nice!
We are living in the Computer age still most of us even don't know how the radio used to work
Brother help on the specific zener diode and capacitor to use
sir please dhoom 2 magenatic gadget video
bina power ,earphone m sound kese ayga
So amazing sir
Bro can u available in product
I am purches
Any one other good am. Fm mini radio
U can make low prize. ...??????
Bhai ye radio tumhe hi mubarak ho , jiske paas ghar me kaam na ho wo apna keemti faltu time isme waste kar skte hai dhanyawad
90% noise, but still interesting. Thanks for the video.
why audio is not clear
Fm transmitter kaise banaye? agar iski ek video banaye to hame bohot khusi hogi or jankari bhi, thanks
Can we play it on any frequency
For example
12647 H of Sony sab
Keep going nice work
My childhood experiment....fm ❌ free tv channels✅
Explain me
Sir can you help me make a control circuit . which is operated by mobile and it starts fist to inform by measege power ready, over load , circuit healthy condition and good condition of starter ready for start to water pump.
Walkie talkie banao na please
In4007 diode nhi chlega kya
Sir !Ak Thermal night vision nanaeea please
I could not find the circuit, could someone help me?
Super!
Jo 103pf capacitor hai ye tho bhut jada high capacitor hai es ke jagah koi or jese nhi kr skte hai kya agar nhi hai ye vala tho
Great invention
Bhai mp3 module me FM ko kaise connect Karna plz replay me
Dayod konsa yus kiya he
Sir there no video about induction spark coils old help me
Sir radio transmitter bnaiye vo bhi simple vala
Mere pass philips ka bahadur model radio he. But kya wo 180 km dur fm catch kar sakta he
I had made this of Radio in 65 year ago by using simply Soona Makhi Stone Antena and Aireal only