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Hello!

I'm gonna show you How to make a Simple FM Transmitter that works with only an AA battery.

Components:
47 pF Ceramic Capacitor x1
33 pF Ceramic Capacitor x1
10 pF Ceramic Capacitor x1
22 uF Electrolytic Capacitor x1
2SC655 (or BC548) Transistor x1
Single Battery Holder (AA Size)
small Breadboard/PCB
10cm Magnet wire x2
Audio Signal Source (e.g. a MP3 Player)

Tools:
Soldering Iron
Solder

Step 1: The Circuit and Parts

Here is the Circuit we're going to make.
<p>How can I change the frequency of the emitter?I guess it depends on one of those capacitors..but which one?</p>
<p>It is NOT the capacitors (however, the Farads matter) the frequency is changed based upon the oscillation of the inductors (the coils of wire) if you want to change the frequency, search the internet for a calculator that to find how many turns of wire you'll need for a specific frequency.</p>
<p>Thank you very much!</p>
<p>how conect mp3 player its not work </p>
<p>try replacing the Audio In wire with a MONO 3.5mm Jack</p>
<p>I have made this and it didn't work at all, I put it on 89Mhz all around it, went through the whole spectra of frequencies, nothing worked! Don't waste your time on this people, if even his picture instructions were in focus, piece of advice get a better camera and make instructions that actually work, I'm really pissed off now</p>
<p>I have made this and it didn't work at all, I put it on 89Mhz all around it, went through the whole spectra of frequencies, nothing worked! Don't waste your time on this people, if even his picture instructions were in focus, piece of advice get a better camera and make instructions that actually work, I'm really pissed off now</p>
<p>May Allah reward you well</p><p>cool thanxxxxxx</p>
qual e o concumo??
how the magnetic wire diameter?
how is the sound quality??? <br>
nice gag, is it a stereo transmitter or only mono?
but the receiver as lai made?
There is a problem in this circuit, every time frequency is change when you move the circuit. Can i put variable/trimmer capacitor in this circuit. If yes where to put the variable capacitor and which type of capacitor. Thanks
how to increase the range of transmitter. <br>
What's the range of this transmitter
About 10 meters max!!!
Where did you get pcb
My uncle is owner of an<a href="http://iran-micro.com" rel="nofollow"> electronic components selling website</a>. I gave him the circuit and asked for a PCB.<br> I Had salvaged the components before from an old cordless phone.
Would a nte199 work for the transistor?

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