Friday, February 1, 2013

Simple 555 IC AM transmitter Circuit .

This is simple Circuit AM transmitter .
the transmitter range 1 Meter and the sound very good .
what you need is :
1- 555 Timer IC
2- small antenna.
3- 10k variable resistor (you can also use Potentiometer resistor )
4- 3 of 1k resistor , 1 of 3.3k resistor , 1 of 330ohm resistor
5- 10nf capacitor ( the capacitor code is 103)
6- 100pf capacitor ( the capacitor code is 102)
7- any variable capacitor ( from old radio or anywhare )
8- 47uf capacitor
9- 2 of NPN transistor (any type)
L1 is 20 turns on ferrite tube
L2 is 10 turns on pencil
and this is the Circuit scheme :

if you can’t find the Circuit parts ,
 you will find it here :  http://astore.amazon.com/m070rkstore-20?_encoding=UTF8&node=69