Thank you, engineer. I did not know why I put the 20-turn coil and what is its role, because there is a special five-turn coil for a resonance circuit with a frequency pickup coil.
Nice design, I definately want to try it. I'll probably use a BF-series NPN transistor. However I wonder why we couldn't use like a BC547; its f_T is still about 300 MHz and its overall gain is higher so it could make up some losses. 🤔
Hi my friend. Thanks for your comment. I tried a few other type of transistors, like 2N, o BC series but it didn't work. Sure, you can try and test. If you success, share with us your experience. Good Luck!!
300 Mhz is the max of those transistors at only unity gain so probably (as I am like intermediate level of knowledge for radio technology) not enough gain with higher frequency like 100 mhz etc. Even for AM radio , using 2n2222 I needed 3 transistors amplifiers to have enough gain. Before I made that mistake that i used cheap transistors from Aliexpress for everything , now I am smarter and I buy only original ones and I try to choose the transnistors for their purpose if I am doing RF Ichoose transistors for RF, if a power amp, I choose power transistors etc. They design transistors for a specific task so if you use for something different it is not going to work ...
It should not be a problem to use the BC 547 or 2N types in this circuit. You just need to adjust and tweek the bias resistors and or the feedback load/variable resistor and the supply voltage. Set this up with all the above parameters as variable trimmer pots till you establish the optimal values and replace with fixed values. Good hunting!
Hi. Normally it's RFC(Radio Frequency Choke) coil. I found a toroid coil from my scrap box and used it. I took it from an old SMPS power supply. It works without any problem. Diameter of toroid is 10mm and 30 windings of 0.1mm copper wire. Good luck!
@@nusyil thanks very much for answering but I have another question to hear what it picked up can I use head phones or I need some kind of amplifier?
Very interesting! This does not look like a super-regenerative circuit (no quench oscillator), actually it's more like a transmitter than a receiver, especially since the base is not grounded like in most simple FM receivers. Therefore I do not understand how coupling in phase between collector and emitter is possible. One question: the schematic shows a battery of 1,5V but in the video it looks like you're using 2 batteries (3V). Does it also work on 1,5V? Tnx
Hi my friend ! You're exactly right. It looks like a transmitter and already it is. I didn't test, but i'm sure that if you connect a microphone to base of the transistor, it works as a transmitter. Already you can see same constructions, as coupling between C and E at FM transmitter schematics as well. In the video, looks as if i used two batteries. It's correct, but one of the battery is a dummy battery :) It's was a dead battery, i made jumper between positive and negative, so it's became just like a conductor. Because i had no battery holder for one battery, only i had for two batteries. So i used it as a fill the blank place of battery holder. Also, i got the best performance at 1,5 V DC. Greetings!!
@@nusyil Tnx for the friendly reaction! I just finished my experiments with a similar schematic but the difference is that the HF transistor (BF 180) in my design is working in common base mode (base grounded) while yours works (partly) in common emitter mode as a mixer. Mine also works with only a 1.5V battery en is so sensitive that an antenna is not needed. The quality of the sound is much better than I expected. I believe that for optimal sensitivity the transistor needs to oscillate weakly (so a low battery voltage helps!) and being able to regulate this 'soft spot' smoothly is the key to succes. If you are interested I will send you the schematic and some photos. How can I contact you?
@@erikdevriese671 Hi. Thank you very much my friend. Sure, i want to see them. This is my e-mail adress : mateksmakina@hotmail.com I'm looking forward to hearing from you..
usta kolay gelsin.anlattıklarını teknik konu olduğu için hemen hemen hepsini anladım.ama ingilizce yazmak bana zor geliyor o yüzden tükçe yazdım..yaptığın radyo sadece yabancı kanalları çektiğini farkettim.her nerdeysen selamlar.kanalı yeni farkettim.kolay gelsin.
It's definitely a superregenerative. I used a 2n3904 and it seemed to receive something or maybe I imagined it.. I don't have a good amplifier, only gain 20. I replaced the transistor with an s9018 and despite the long wires, it receives many stations although one station local is everywhere. The sound is very weak but because of the amplifier. Do you think that an lm386 with a gain of 200 is enough?
@@nusyil Btw can you make a video on how to assemble it? Bcuz i wanted to make it but i understand how all the connection goes but i dont know how to connect the gang capacitor
@@PekaVuite My friend, i am newbie in RUclips and take videos :) I don't promise you take a video about how to connect gang capacitor. Pls check this : www.petervis.com/electronics/tuning-capacitor/tuning-capacitor.html Good luck!!
Hello, how can we mute the sound at an empty (noise) frequency on the fm radio, what should I use for this? example : vzsssssssssssssssssssssssssssssssssssssssss (white noise)
Selam. Kullanılan devreye göre değişiyor. Bazı entegrelerde, örneğin TDA 7000'de bu özellik var. 1no'lu pini 10k direnç ile besleme gerilimine bağladığınızda White noise'i kesiyor. Diğer devreler ve entegreler için kullanılan komponenetlerin datasheet'lerine bakabilirsiniz. Ancak genel amaçlı, her FM radyo'ya uygulanabilecek universal bir devre veya uygulama var mıdır bilemiyorum. İnternette "FM receiver white noise canceller" vb aramalar yaptırarak bir fikir edinebilirsiniz. Kolay gelsin.
@@nusyil Hi On the board I can't see the capacitors. Have I too small screen ? By the way ... Capacitor 30p should be connected to resistors ? There's no dot at crossig the lines so Im not sure...
@@dominikbatorski3121 If you pause the video at 1:45 and get the full screen you can see clearly capacitors. You right, only i didn't install 330nf Audio out capacitor, since the amplificator which i connected, has internal input capacitor. And yes, the 30pf antenna input capacitor is connected to the resistors and the Base pin of the transistor.
@@microxone Hi my friend. I don't recognize the 194C transistor. You can use any VHF-UHF or FM transistor. Like some BF series transistors.(e.g BF199).Good Luck!
I couldn't see where you connected the antenna to and I couldn't see most of the equipment you were using, very poor video etiquette, do you ever review your videos before posting online? I'm asking because everything you talked about was out of sight and you know what that makes you? Nothing you did was satisfactory.
Hi my friend. No, you cannot use them. They are not High frequency transistors. They are low frequency amplificator transistors. You should use one of the FM, VHF or UHF transistors. Good Luck!!
@@michaeljoshuamanallo1742 You cannot use C945 neither my friend. You can use BFseries high frequency transistors, e.g. BF197-198-199-240-422, ED1502 etc. For more information, you can investigate in internet.
@@michaeljoshuamanallo1742 No, neither my friend. Google says, that transitor is an AF amplifier transistor, so you cannot. Please use Google to find datasheets of the transistors that you have. Good Luck!!
Nice simple, electronics is always interesting, 👌👌👌
Yes it is my friend.
That's very informative ❤ Thanks lot....Im also a hobbyist, Subscribed 🔥
Thanks my friend!!
inspired, thanks for posting
Thanks my friend!
I love it good
Keep uploading videos like this
Thanks my friend!
Eh tiba tiba ketemu bang upink disini......
ok thanks . I make this circuit , enable by sun cell 4 volt , very good working ❤️❤️❤️ Lm386 for amp
Great news! See you my friend!
Классный радиоприемник спасибо огромное за видео здоровья вам удачи и всего хорошего пока 👋👍👍👍
Большое спасибо, мой друг!! удачи!!
Thank you, engineer. I did not know why I put the 20-turn coil and what is its role, because there is a special five-turn coil for a resonance circuit with a frequency pickup coil.
Hi my friend. 20 turns coil is not for resonance circuit. It's Radio frequency Choke coil.
@@nusyil 👍 How is the choke coil calculated to be placed in the circuit to match the frequency to be choked
@@mohtechnodz3053 a 10microhenry coil is fine.
@@nusyil what does the choke do?
@@janszwyngel4820It makes the oscillator go in and out of oscillation so it does not overload with feedback.
Legal ❤. nota 10.
Cardenales de nuevo León que bueno oirlos
Nice design, I definately want to try it. I'll probably use a BF-series NPN transistor. However I wonder why we couldn't use like a BC547; its f_T is still about 300 MHz and its overall gain is higher so it could make up some losses. 🤔
Hi my friend. Thanks for your comment. I tried a few other type of transistors, like 2N, o BC series but it didn't work. Sure, you can try and test. If you success, share with us your experience. Good Luck!!
300 Mhz is the max of those transistors at only unity gain so probably (as I am like intermediate level of knowledge for radio technology) not enough gain with higher frequency like 100 mhz etc. Even for AM radio , using 2n2222 I needed 3 transistors amplifiers to have enough gain. Before I made that mistake that i used cheap transistors from Aliexpress for everything , now I am smarter and I buy only original ones and I try to choose the transnistors for their purpose if I am doing RF Ichoose transistors for RF, if a power amp, I choose power transistors etc. They design transistors for a specific task so if you use for something different it is not going to work ...
It should not be a problem to use the BC 547 or 2N types in this circuit. You just need to adjust and tweek the bias resistors and or the feedback load/variable resistor and the supply voltage. Set this up with all the above parameters as variable trimmer pots till you establish the optimal values and replace with fixed values. Good hunting!
Can receive HF 40 band signals by modifying this circuit
Hi. I have no idea my friend.
Mr tech electronics please make this single transistor radio
@@mohammedaneesx6833 i will try👍
Give me the circuit diagram please
@@azanonlineHi. Did you watch the video? Or just take a look at the video.
very nice video . big like and subscribed as well !
Thanks a lot my friend !
0:30 I don't see how this crkt is regenerative. How is feedback controlled?
Hi my friend. You right, i made necessary changes in the title. Thanks for your comment.
Very
Good
Thanks my friend!
super
Thanks!
Is the choke coil a toroid? Whats the radius of the ferrite coil?
Hi. Normally it's RFC(Radio Frequency Choke) coil. I found a toroid coil from my scrap box and used it. I took it from an old SMPS power supply. It works without any problem. Diameter of toroid is 10mm and 30 windings of 0.1mm copper wire. Good luck!
@@nusyil Thank you! Great circuit, good audio quality with very few components!
@@Galvan1 Thanks a lot my friend. Good Luck!
👏👏👏👏👏
bu tür cok sevdiğim videolar
Teşekkürler.
Hi does it work with fm 87mhz to 108mhz. Can the rfc coil be any coil or it needs a specific value.
@@The_electronics_nerd hi. Yes, it works in FM band. 10uh RFC coil works fine.
@@nusyil thanks very much for answering but I have another question to hear what it picked up can I use head phones or I need some kind of amplifier?
@@The_electronics_nerd better use an amplifier, since the audio level is very low.
Why is. The choke not connected to to center point. Of potentiometrs. ? Without this ther will be no regenerative. Afect
Very interesting! This does not look like a super-regenerative circuit (no quench oscillator), actually it's more like a transmitter than a receiver, especially since the base is not grounded like in most simple FM receivers. Therefore I do not understand how coupling in phase between collector and emitter is possible. One question: the schematic shows a battery of 1,5V but in the video it looks like you're using 2 batteries (3V). Does it also work on 1,5V? Tnx
Hi my friend !
You're exactly right. It looks like a transmitter and already it is. I didn't test, but i'm sure that if you connect a microphone to base of the transistor, it works as a transmitter. Already you can see same constructions, as coupling between C and E at FM transmitter schematics as well.
In the video, looks as if i used two batteries. It's correct, but one of the battery is a dummy battery :) It's was a dead battery, i made jumper between positive and negative, so it's became just like a conductor. Because i had no battery holder for one battery, only i had for two batteries. So i used it as a fill the blank place of battery holder. Also, i got the best performance at 1,5 V DC.
Greetings!!
@@nusyil Tnx for the friendly reaction! I just finished my experiments with a similar schematic but the difference is that the HF transistor (BF 180) in my design is working in common base mode (base grounded) while yours works (partly) in common emitter mode as a mixer. Mine also works with only a 1.5V battery en is so sensitive that an antenna is not needed. The quality of the sound is much better than I expected. I believe that for optimal sensitivity the transistor needs to oscillate weakly (so a low battery voltage helps!) and being able to regulate this 'soft spot' smoothly is the key to succes. If you are interested I will send you the schematic and some photos. How can I contact you?
@@erikdevriese671 Hi. Thank you very much my friend. Sure, i want to see them. This is my e-mail adress : mateksmakina@hotmail.com
I'm looking forward to hearing from you..
What is the value of bias resistor between collector and base of the transistor? It is not clear in the video
Hi. 6,8 K.
Thank u.. I have ordered the transistor in Amazon.. I shall try.. love and respect from India❤️🙏💐
@@kingshukroy4779 Thanks my friend. I hope it'll work without any problem. See you later!!
Nice.
I would have liked more of a discussion about how it turns FM into audio.
Hi. May be you can brighten us about this? What do you think?
What does the ferrite induction coil do? Add gain, so you don’t need another transistor?
Спасибо 👍👍
Большое спасибо, мой друг!! удачи!!
usta kolay gelsin.anlattıklarını teknik konu olduğu için hemen hemen hepsini anladım.ama ingilizce yazmak bana zor geliyor o yüzden tükçe yazdım..yaptığın radyo sadece yabancı kanalları çektiğini farkettim.her nerdeysen selamlar.kanalı yeni farkettim.kolay gelsin.
Teşekkürler. Diğer videolarıma bakarsan Türkçe versiyonu olanı da var. Yurtdışında yaşıyorum. Bu yüzden kanallar yabancı :). Kolay gelsin !
hahaha para olvidarme de tiii!!! le pedire al eterno que me ayude!!! hahaha that song is from my contry
From Mexico ;)
Does it need an amplifier? Conecting an 8ohm speaker to the output makes absolutely no sound
Sure. You cannot drive directly to speaker. You have to connect it to an amplificator.I mentioned about it in video. Look at the video at 1:35.
Nice.
Thanks my friend.
Fm variable trimer how much it cpasitanc? In pf
Hi. It can be 4-40 pf.
Too cool
Thanks my friend!!
well done !!! ( any LTSPICE / SPICE simulation link )
Thank you my friend!
can this circuit receive higher frequency ?
No it’s against the law
Сверх регенератор с ихнего будет И приемник и передатчик одновременно.
Привет дружище! Да, вы правы, уже есть. Удачи!!
It's definitely a superregenerative. I used a 2n3904 and it seemed to receive something or maybe I imagined it.. I don't have a good amplifier, only gain 20. I replaced the transistor with an s9018 and despite the long wires, it receives many stations although one station local is everywhere. The sound is very weak but because of the amplifier. Do you think that an lm386 with a gain of 200 is enough?
Hi my friend. I answered you with mail!
Buenas noches. El capacitor variable se puede implementar con un trimmer o debe ser forzosamente con un capacitor igual al que utilizaste tu?
Hola, que tal? Puede ser un trimer como 5-20pf o similar. Saludos!
Perfecto muchas gracias :))
So the coil is about 0.2uH, right? There should be no issue using one of those resistor-style inductors, correct?
Hi my friend. I used 10uH, the result is satisfactory.
Search on Google "fm radio receiver block diagram" and see what is FM receiver? Where is frequency demodulator on your circuit?
This circuit uses a slope detector. It's a simpliest FM demodulator.
nusret abi o aksan ne öle ya harbili ingiliz sandım
@@insan2814 bu kadar becerebildim :)
Can you please list the components?
Hi. At the beginning of the video, seen all components at the drawing my friend. If you pause video, you can see it clearly. Thanks.
@@nusyil thank you so much
@@nusyil Btw can you make a video on how to assemble it? Bcuz i wanted to make it but i understand how all the connection goes but i dont know how to connect the gang capacitor
@@PekaVuite My friend, i am newbie in RUclips and take videos :) I don't promise you take a video about how to connect gang capacitor. Pls check this : www.petervis.com/electronics/tuning-capacitor/tuning-capacitor.html Good luck!!
@@nusyil thank you so much You are such a help to me
Can I use Bf199 or Bf495 ?
Yes.
Can you tell us about components
Hi my friend. I suppose that all the components that used in circuit are clear. Do you need more info about any spesific component?
Can I the schematic for a school assignment?
Hi myfriend. Yes,you can.
@@nusyil Thank you very much for understanding.
Hello, how can we mute the sound at an empty (noise) frequency on the fm radio, what should I use for this?
example :
vzsssssssssssssssssssssssssssssssssssssssss (white noise)
Selam. Kullanılan devreye göre değişiyor. Bazı entegrelerde, örneğin TDA 7000'de bu özellik var. 1no'lu pini 10k direnç ile besleme gerilimine bağladığınızda White noise'i kesiyor. Diğer devreler ve entegreler için kullanılan komponenetlerin datasheet'lerine bakabilirsiniz. Ancak genel amaçlı, her FM radyo'ya uygulanabilecek universal bir devre veya uygulama var mıdır bilemiyorum. İnternette "FM receiver white noise canceller" vb aramalar yaptırarak bir fikir edinebilirsiniz. Kolay gelsin.
@@nusyil Ben fm modülü olarak RDA5807 kullanıyorum bu beyaz karınca sesinin çıkmasını engellemek istiyorum
@@ramazanayten3758 RDA 5807'nin datasheet'ini incelediniz mi? Böyle bir özellik olabilir
@@ramazanayten3758 Şimdi baktım datasheetine. "Digital adaptive noise cancellation" özelliği var diyor. Detaylı incelemedim, bir bakın isterseniz.
@@nusyil nasıl kullanabilirim
The circiuit and scheme looks slightly different
Hi my friend. What is the difference ?
@@nusyil Hi
On the board I can't see the capacitors. Have I too small screen ? By the way ... Capacitor 30p should be connected to resistors ? There's no dot at crossig the lines so Im not sure...
@@dominikbatorski3121 If you pause the video at 1:45 and get the full screen you can see clearly capacitors. You right, only i didn't install 330nf Audio out capacitor, since the amplificator which i connected, has internal input capacitor.
And yes, the 30pf antenna input capacitor is connected to the resistors and the Base pin of the transistor.
@@nusyil Thanks a lot :) Then I grab my soldering iron ...
What is used as the detector?
Hi my friend. The transistor itself used as a detector as well..
Base emitter junction
Please your help. Haw to make 433mhz rf received circuit.
Am making new project please support
Hi. You can buy ready made products from internet to use in your project my friend. Just Google it. Good luck!
Can i use s9018? Thanks
Hi my friend. Yes, already I used s9018 too.
@@nusyil thanks i will try to Make the radio
@@lukabread4099 You're welcome. Good luck !
@@nusyil is The 1k resistor with the weird Mark a pot?
@@lukabread4099 weird mark? What do you mean?
I want to do wireless remote control for my home made rc car
Ok. Good Luck!!
What is value of Gang Capacitor
Hi. I got it from an old pocket FM-AM radio. But any 4-40pf variable capacitor is suitble. Good Luck!
@@nusyil
Will you please elaborate the Gain Coil used in emitter ...or any Hand made ferrite core coil
@@nusyil
Secondly when to demonstrate one trasistor amplifier with this circuit diagram
@@nusyil
Can I use Transistor 194C instead.
If not pleaee sugge6 equivalent trasistor
@@microxone Hi my friend. I don't recognize the 194C transistor. You can use any VHF-UHF or FM transistor. Like some BF series transistors.(e.g BF199).Good Luck!
It doesnt work 😔
Mine works.
Show
????
I couldn't see where you connected the antenna to and I couldn't see most of the equipment you were using, very poor video etiquette, do you ever review your videos before posting online? I'm asking because everything you talked about was out of sight and you know what that makes you? Nothing you did was satisfactory.
Thanks for your comments my friend.
А я не люблю ФМ радио, а вот средние и короткие да, весь мир можно ловить.
Привет дружище. Я люблю обеих. Удачи!!
ismin türk
Evet, Türküm.
this circuit will not work, you dont need any tranzistor...
Waow..Maybe you want to prove it to us?
You need a transistor to amplify the signal so that you can use a speaker instead of an earphone
👍👏👏
Can I use a s9013 or s9014 transistor???
Hi my friend. No, you cannot use them. They are not High frequency transistors. They are low frequency amplificator transistors. You should use one of the FM, VHF or UHF transistors. Good Luck!!
What are the other transistor can I use instead of s9018 can I use c945?
@@michaeljoshuamanallo1742 You cannot use C945 neither my friend. You can use BFseries high frequency transistors, e.g. BF197-198-199-240-422, ED1502 etc. For more information, you can investigate in internet.
I have a c2785 transistor in a old radio receiver can I use it sir?
@@michaeljoshuamanallo1742 No, neither my friend. Google says, that transitor is an AF amplifier transistor, so you cannot. Please use Google to find datasheets of the transistors that you have. Good Luck!!