Build your own FM transmitter with no special parts needed

Подписаться 31 тыс.

Просмотров 333 тыс.

50% 1

See our 1 mile UHF transmitter at:
www.bug-transmitter.com
www.filedropper.com/pcbprint
Lets make a very simple 2 transistor FM transmitter
In this video i will show you how to make a
FM Transmitter that is very easy to build and get working.
See how i make a very simple circuit board.
Frequency: 93Mhz - 99Mhz
Current consumption: 13mA at 9v
Working Voltage: 3v - 12v ,more Voltage more transmission range !
Stability: Not bad
Transmission range: Antenna 165cm=
800ft+ , Penetrates through walls and ceilings.
RF Power: about 4.45mW RF output
PLEASE NOTE
The videos I make take a lot of time to film and edit ,I know I don't make many videos and that I will improve on in the future ,any donations are welcome to my PayPal account at: dazaro@blueyonder.co.uk
Thanks
Parts List:
R1 Resistor: 47k
R2 Resistor: 1M
R3 Resistor: 10k
R4 Resistor: 47k
R5 Resistor: 470R
C1 Capacitor: 100n
C2 Capacitor: 100n
C3 Capacitor: 1n
C4 Capacitor: 33pf
C5 Capacitor: 10pf
C6 Capacitor: 10pf
C7 Capacitor: 100n
C8 Capacitor: 33pf
Homemade PCB ,see video
10mm Microphone
2n3904 transistor x 2
Antenna wire: 165cm
L1 Coil 4 turn
PP3 battery clip

Наука

Опубликовано:

5 янв 2015

Ссылка:

Скачать:

Готовим ссылку...

Добавить в:

Мой плейлист

Посмотреть позже

Комментарии : 290

@hiworx 9 лет назад

The best DIY PCB I've ever seen. Thanks.

@jlucasound 8 лет назад

I can watch you for hours. Innovation, knowledge. Wow. Thanks again.

@almulasa183 6 лет назад

Help good afternoon my name is ABDULAZEEZ please what is the number transistor I am going to use sorry for my English

@nikiamz6501 6 лет назад

jlucasound you need to watch him for hours because for one easy video he needs around 30 minutes to one hour and more!

@Tryin2FlyII 9 лет назад

I just watched this again and not only do you show how to build it without any special parts but with the clips showing where your soldering one could actually learn how to read a electronic print (schematic) as well! wish I could have seen these when I first started out-sure would have made my life easier lol

@skycarl 9 лет назад

Another fun project Darren. Will enjoy building. Thanks Carl

@LuizCamposTutoriais 7 лет назад

I built one, it worked perfectly. I really admire your work.

@gopalsinghraj395 5 лет назад

Can u give me that

@kennyball3956 7 лет назад

great vid...its a good way of getting into electronics and not being scared of pcb's keep this style of vid comin plz love these little projects

@momodoungum3676 7 лет назад

I just love the soldering part of it most!! very interesting tutorial...

@TheKatr2 7 лет назад

sir this clip is pure gold.well done

@thearab8024 9 лет назад

I've watched a bunch of your videos and they are all completely amazing and so very inspiring. I'm an amateur at DIY electronics, and I've never seen a board made like this. I can etch my own, but I think this way of making a board is very cool! thank very much you sir!

@dazaro3 9 лет назад

The Arab Thanks for your nice words,happy you like my videos.

@BEdmonson85 7 лет назад

Just built this circuit today using all amd parts on a piece of proto-board. I didn't have any 2n3904 so I used BC817's. It worked quite well - better than i thought it would actually ☺ Edit: Forget to mention, I also only used 2 AAA batteries to power it and it still worked pretty good!

@TheSudiptheory 6 лет назад

range?

@naqiu_46 8 лет назад

BRILLIANT idea for the PCB. thanks mate

@movington3636 9 лет назад

Simply genius, thanks for sharing your video !

@eirikmurito 7 лет назад

That was awesome man i cant wait to try this, greetings from Norway!

@quantum5170 6 лет назад

Excellent video ...innovative cct board.. all these components are common. The inductor/coil is home made the Ae is just a length of wire.

@ChrisFredriksson 8 лет назад

Not the most useful comment perhaps, but please can you make more of these videos? I both love the content and how you've made the videos, they are excellent! Of course, you probably have life on the other hand as well ;) But really, these videos are great and I really would love to see more! =)

@mustafamohammed3834 8 лет назад

can you please make videos explaining the why not just the how , call it fm design course , just tell us why there is so many capacitors and stuff like that .

@Spoif 9 лет назад

dazaro3 This is a nice project. You have some excellent fabrication ideas. Thanks for sharing.

@mango3586 9 лет назад

hello dazaro3,very good video. i will be building this transmitter.

@xeno8555 9 лет назад

Hey daz, awesome! I'd like to build a boost converter to power the front end amplification stage, with a MOSFET or high power BJT transistor as the front end rf amplifier; with only a single 9V or 12V battery or even an electric bike battery... perhaps a daisy chain could be useful on the front end and the frequency may be altered within the VHF range to some non-interfering channel

@JoeyMars101 7 лет назад

Nice video presentation!

@mayurbalwani7277 8 лет назад

Why haven't you uploaded any video for a while? Your videos are great. Keep it up man!

@mahadevan2402 7 лет назад

I created one like this worked perfectly... thank you....

@tpmlabeeb2215 6 лет назад

r u help me

@valfridotrelha6218 9 лет назад

Muito bom seu projeto, Bonito-MS Brasil !!

@rsattahip 6 лет назад

Will this work as a fm transmitter for an mp3 player? Mount a jack plug and wire instead of a microphone?

@mhmdibrhimmstfa 8 лет назад

thanx a lot for a very informative video

@samhall3591 7 лет назад

Great job keeping the spirit of DIY alive and thriving. This is the only video I have ever seen that gives an alternative to soldering. Thanks for sharing information. There are many who appreciate it. B

@freak55beat 9 лет назад

what a good idear, and it worked.!!!!!!!!! thanks

@playhouse9049 7 лет назад

Nice video! thanks very much

@RssutharJaisalmer 3 года назад

Very Very thank you Sir ji for building FM 😊👌👆🙏

@jenniferobenewaa1607 7 лет назад

Nice making.

@greglockyer1668 4 года назад

Love your smplicity build. Can you build a split system receiver/transmitter linked above water and transmitter/receiver below water say 2m below water linked by a cable? Below the water you may need to increase the power or what ever its called.

@mhmdibrhimmstfa 8 лет назад

nice job,dazaro3.

@spib65 9 лет назад

Very impressed

@Eyevan1698 5 лет назад

I made this model for a project of my university, and ir works perfectly, but se changed the transistor for one that is less noise Exelent

@erstermaat5245 3 года назад

This kind of oscillator is not critical and works with a wide kind of Transistor types even most af Types. So there is no explicit RF Type Transistor necessary. Just trying.

@ingeborgsvensson4896 5 лет назад

dazaro3 I built this one and it works great, thanks. I modified a small transistor radio so I can receive it outside the broadcast band around 80 MHz. In my case the signal has to go through 3 walls so the range is only 60 meters (~ 60 yards). How can I modify it so I get a little more power, can you recommend a high frequency transistor to replace the 2N3904? Or any other way to boost the signal, maybe an additional stage between the mic amp and the transmitter?

@abderrahimmoudrikah2840 9 лет назад

I Can't download the printable layout, broken link, could you re upload it please !!

@harmless1106 8 лет назад

If I were to use a 1/8 in jack and a capacitor to separate the dc, would it work well with any phone/mp3 player?

@pradeszebua 2 года назад

I've tried making two circuits so far but none of them work, I don't know what I'm missing but I think I need to understand how every component works in an fm transmitter, if you can make a video explaining the basic principle of how every component works in a fm transmitter, that'd be really amazing...

@elcondenao77 8 лет назад

Hello congratulations, i like now how buid the check the power rf what you show in this video, thanks

@MickMacCann 9 лет назад

Hey, thanks for the vids. Unfortunately haven't managed yet to get one working! I think the weak point it my coil. Can you use copper wire? I've also attempted to break apart the coils in a transformer, but no luck! I've seen variable inductance Hollow coil inductors on alibaba , but am wondering what the inductance of the coil should be and whether it could be replaced even with standard solid inductors. Thanks!

@DAVIDGREGORYKERR 8 лет назад

On that circuit you are building could you use a BD131 or some RF pre-driver transistor, there are some 9v batteries that have 16x5 AAAA batteries.

@eclipselucas 9 лет назад

Ahahahha That sounds like a lot of fun. Must make one! Thanks!

@RosssRoyce 8 лет назад

How do i take the antenna hi freq signal and send it into a high power transistor to make it high power transmitter?

@raven-4 7 лет назад

im just getting into this stuff and was wondering about the Resistors, it says 47k but how many watts is it or does it matter?

@Radiohomunculus 6 лет назад

are you able to adjust the broadcasting frequency on this transmitter?

@mrjohhhnnnyyy5797 9 лет назад

Fun, I started building my first circuits without any board, then I started to use thick cardboard as a base. But now I have couple square feets of copper clad board in stock practically everytime. It is fun, but when it comes to more complex circuits, wiring that will be pain in the butt

@ihsanullahstanakzai6049 4 года назад

hello, sir I always watch your videos and it changed my life, sir, if you can to make a video about the jammer it will very good and which type of frequency Generate it?!

@Tryin2FlyII 9 лет назад

I have built a lot of transmitters a lot of different ways but this I have to say is one way I never thought of ! pretty cool good job- BTW (Xerox-fish) He is responding to many emails from people who want to know how to do this WITHOUT etching the boards who knows why (I don't) but at least he answered them most wouldn't take the time- I think its pretty smart move to be honest

@nor4277 8 лет назад

Make your own circuit boards or a kit ,I buy it ,I love the kit formats.just a thought ,because there aren't always enough interesting kits to by sometimes.

@reyatireyatireyati7140 8 лет назад

This is a “VFO”which is unstable oscillator,so it's better to use "PLL" oscillator which is ...stable with wide frequency range

@Lechoslowianin 9 лет назад

Successful project, clean transmission of

@MrWasim100100 5 лет назад

nice project can we replace 2n3904 transistor what is the wire gauge and diameter for coil

@danielodriscoll3517 Год назад

Can you please tell me where the trim cap would be connected ? I'm guessing one to positive rail and I don't see where I would connect the other end. I'm a beginner. Any help much appreciated. Tia

@no_name-gj5gg 7 лет назад

how do i connect the parts if i have a ready pcb from the shops?

@vibra64 9 лет назад

Thank you for this video. Ill give this one a try. Question: Is electronics a hobby or is it your profession?

@devincarter7434 9 лет назад

hi mate, when buying capacitors, what voltage should they be? the higher the better is it? if some are higher than others in the circuit will that be a problem? as you can probably tell I haven't got much of a clue about this stuff. cheers pal

@hamidsk2573 3 года назад

it is possible to set the FM frequency with a digital circuit such as MCU, I mean digitally change the variables of LC parameters

@FutureAIDev2015 8 лет назад

Basically, does an FM radio work based on PWM and average voltage?

@hassanrasool3977 4 года назад

Thanks ..you good from baghdad iraq

@annyan904 9 лет назад

I have made a three stage transmitter ultima fm bug i replaced the 2n3563 with a bf 199 but unfortunately its range is too low about 3feet. Sometimes i get a clear sound but as soon as i move away sound becomes too low.frequency of it is not stable.pls help.

@georgeallen556 6 лет назад

you inspire me

@gerardofire69 8 лет назад

Im still waiting for more of your videos too

@cdt6355 8 лет назад

hello do u think i can use this project for my final year project?

@asunasposibol 4 года назад

Hi, great video. I just suscribed. Could you please send me the link to the RF metter used? It looks DIY, pretty neat. I searched your videos but I couldn't find it. Thanks

@fredbearfazbear3004 8 лет назад

can i use a phone tobpick ip the frequency it outputs?

@ungnhanvaoprofilecuatoi2191 3 года назад

wat does the cap between collector and emitter of the second transistor do?

@JohnMcG 8 лет назад

what value caps would be suitable for c4 and c8 if I didnt have 33pf could i use a 47nf or 22nf? Many thanks for this video, very interesting!

@dazaro3 8 лет назад

+John M For most part the frequency is set by the tank circuit. Thats the 33pf capacitor and the inductor ,that the 5 turn coil. You can only use a 30pf capacitor. Or 2 x 15pf in Parallel to make 30pf or 2 x 60pf in Series to make 30pf.

@FirstLast-qh4su 8 лет назад

can we control its functions with added controls wirelessly

@amirulaiman8415 6 лет назад

what material u use to make the coil and where can i find the material.

@devangshetty 8 лет назад

Hey Daz, great build! could you please put up another link to the PCB print? the current link is not working. Thanks mate :D

@thierryarthaud9939 3 года назад

C'est très fort !

@EMPIRERADIO 7 лет назад

Hiya, thanks for this wonderful tutorial it is very helpful.. and ive visited the links below and saw some very interesting stuffs a looking for.. Am in the Gambia West Africa IS IT POSSIBLE TO GET IT POSTED TO ME.. I WANT TO BY ITEM

@martinscopes3914 3 года назад

Hi. Can I ask a resistor and a capacitor is one positive and one negative each side like a LED .if I hold a capacitor with the number facing me like it says 103 the left side and the right side witch one is positive. Not so shore about resistors. I been in to electronics since 1981 but I want to make some of these. Thanks

@juanlopezmedina7685 5 лет назад

How could I connect a source of music such as a mobile phone? Directly to C2 or not

@sdhjirhgh 9 лет назад

you are amazing i am impress.

@baltofarlander2618 3 года назад

Can I replace microphone with jack input? And if yes, then how to do that?

@UnknownUser-qk8jt 8 лет назад

please post a working link for the pcb template the one you have is not working.

@melissaserenityasmr4257 7 лет назад

But how do u know EXACTLY how few and far between to make the holes to poke? Are the exact measurements on the schematics?

@MrBrymstond 7 лет назад

I can't get the pcb print, the url goes to the main screen and not yours.

@sodoit512 7 лет назад

if i use other caps will it work

@mota4598 7 лет назад

I can't find the frequency! Please help me!

@elmaddinnasrullayev2001 8 лет назад

And one more. There are two types of capasitors. For example 33pf *50v and 33pf*25v which one?

@annyan904 7 лет назад

can I use 1/4 watt resistors??

@hassandavid6246 8 лет назад

Would you please tell me how to make fm transmitter from car fm mp3 device?

@DARIO8417 7 лет назад

And with RDS capabilities as it does?

@MrWasim100100 5 лет назад

which wire gauge used to make coil

@totototunjo 7 лет назад

I don't speak english so good.Which kind of material is the wire you use for wiring all elements together. I would appreciate you answer.

@alfredswan6869 4 года назад

Hi can I use C945 Transistor for this build?

@patrefkorwa9371 8 лет назад

im interested in buying those trimmer capacitor.

@m.prasanthmani5855 5 лет назад

Can I do this same in pcb board...?

@momodoungum3676 7 лет назад

Can you pls post the schematics and the part list....?

@benjaminmemcic4434 8 лет назад

where can i find schematic of that fm transmitter???

@ruikazane5123 3 года назад

Is it possible to feed the audio signal in, instead of a electret microphone? Nice work on that board, will have to do it that way this time around...low budget build and I have a bunch of Ethernet cables here that can do the wiring

@dazaro3 3 года назад

Please see my order videos where I built a fm Transmitter with a audio input, I have a few such videos.

@JulianCoogan-zl1ru 2 месяца назад

Very cool 😎👍🏿

@IamEffiom 8 лет назад

Please can you help me on how to buy 22pf trimmers... i need 2 of them How much and how can i get them?

@bilalraees1211 6 лет назад

Kindly Tell me, how to make FM receiver????

@bsal5347 6 лет назад

hey dude can i use earphones mic i seriouly adore your work but u didnt use trimmer capacitors or similar stuffs like those how can u adjust your frequency ....///??????????

@ody2165 5 лет назад

Hello friend, i was trying to make your transmitter but i dont use a L1 coil 4 turn, i use transistor but the function like L1 coil 4 turn, and it didn't work. do you know what's the problem?? pleasee... this is for my exam

@DJPatiphone 8 лет назад

Хороший трансмиттер вышел. Качество передаваемого сигнала хорошее, это видно по дальности. Какой шум дает трансмиттер ? Спасибо !

@aagrafio Год назад

Hello sir. I think in the past you had posted a video of an FM transmitter with stereo preemphasis circuit. Can you repost it or simply reply to me where I can find the circuit diagram?