FM TRANSMITTER

FM TRANSMITTER

HI FRIENDS! Today we are going to learn how to build an FM transmitter using a few component in other to archive the transmitter, is about 50 meters ahead far

But before them we have to know what a transmitter ( TX ) is all about...

A transmitter is an electronics device that transmit electric to a radio signal

Days back in school doing my research on how to build a equality and sound FM that can be able to transmit (TX) up to 50 meters

But unfortunate i couldn't be able to find any one suitable to my project for me to build with a low cost component.

Thank for today, here is a simple quality sound FM transmitter  

DIRECTION ON HOW TO BUILD IT.

1. The LM386 is a low discretion Audio amplifier, were the gain is from 20-200. In this circuit is used to increase the the input audio so that the generator we be stabilize of the transmitter 
2. The 2N2222  is an NPN  Transistor which i used to amplifier the current in the generator.

The copper coil is gauge 22 to 24 wound up to 7 to 10 turns on a 3 inch nail. parallel it with non-polarize capacitor 22pf.

HOW TO TEST IT after building the FM transmitter you have to bring down  an FM RADIO, and put it ON in other to search the match  frequency of the fm transmitter also bring the fm transimtter MIC close to your mouth and be making a speech on the condencer MIC constantly ( no stooping ) and the same time be tuning the fm radio so it will match or Huck up with the same frequency with your transmitter

NOTE
If it doesnt catch then you have to adjust the inductor JUST a little bit since we are not using a variable inductor

COMPONENTS 

LM 386 IC = 1
 2N2222 = 1
10K =1
680K =1
CONDUCER MIC 1
ELECTROLYTIC CAPACITOR 10uF =2
PEPER CAP 22pF =2PCS
103 =1
102=1
SWITCH =1
9V BATTERY
ANTENNA =1
INDUCTOR 
LED ANY OF YOUR COLOR
SWITCH 

GOTO RADIO