How to make wireless phone set easy at home

In this project we learn how to make wireless phone set easy at home using a few simple step with circuit diagram. so this project divided in two parts. 1st part we make sending device circuit and in 2nd part we make receiving device circuit. This project work on radio fm frequency.

Before making wireless phone set project you need to learn these two project. then you can make this project very easily.

Homemade wireless phone set

1st Part of wireless phone set:

in 1st part we make wireless phone sending device and circuit. using this circuit we can send our voice on wireless waves frequency.

Components:

SN74LS13N IC
IC Base
Mic
LM7805 Voltage Regulator(for 5v output)
104pf Capacitor
103pf Capacitor
22pf Capacitor
4.7k Resistor (2)
PCB Board
LED
9V Battery
Battery clip
Soldering wire
Soldering iron

Wireless Sending Device Circuit Diagram:

Wireless receiving device circuit diagram

Wireless sending device circuit diagram

For sending device we use SN74LS13N IC for sending data. its convert our voice into radio signal. following few steps and make transmitter circuit.

Connect 1,2,4, and 6 number pin with each other.
now connect antenna with 6 number pin.
connect 22 number capacitor with 6 and 7 number pin.
connect 1st side of 4.7k resistor with 14 number pin.
now connect 1st side of 104 number capacitor with 5 number pin.
connect 2nd side of 4.7k resistor and 104 number capacitor with each other.
now connect MIC with ground wire and 2nd side of 4.7k resistor.
connect 4.7k resistor and LED with positive and negative wire.
now connect 103 number capacitor with positive and negative wire.
LM7805 has 3 pins.
connect 9v positive wire with 1st pin of voltage regulator.
now connect negative wire of 9v battery with 2nd pin of voltage regulator.
voltage regulator 3rd pin use for 5v positive output.

2nd Part of wireless phone set:

In 2nd part we make wireless phone receiving device and circuit. using this circuit we can receive our voice from waves and convert into on speaker.

Components:

TA2003P IC
16 Pin IC Base
15pf Capacitor
471pf Capacitor
4.7uf, 25v Capacitor
220uf 25v Capacitor
2pin 10.7MHz Ceramic Filter
3pin 10.7MHz Ceramic Filter
Variable Capacitor or Tuner
26Gauge 4 turn and 5 turn coil
PCB Board
2n2222a NPN Transistor
1K Variable resistor
ON/OFF Switch
Speaker
Soldering wire
Soldering iron ( how to make soldering iron)

Wireless receiving device circuit diagram:

Wireless receiving device circuit diagram

For receiving device we use TA2003P ic this ic use for receiving signal from fm frequency. flowing few steps and make receiver circuit.

TA2003P IC has 16 pin.
connect antenna with 1 number pin.
now connect negative power with 2 number pin.
connect 3 pin ceramic filter with 3,6 and 8 number pin.
6 number pin use for positive power supply. (you can use 3v to 5v power supply)
connect 5turn coin with 15 number pin and positive power.
now connect 14 number pin with positive power.
connect 15 number capacitor and 4 turn coil with 13 number pin and positive power.
now connect 471 number capacitor with 11 number pin and positive power.
connect 2pin ceramic filter with 10 number pin and positive power.
now connect 9 number pin with emitter of 2n2222a transistor.
connect speaker with collector pin of 2n2222a transistor and 3rd pin of variable resistor.
2nd pin of variable resistor connect with base.
connect 220uf negative side of capacitor with 1st pin of 1K variable resistor.
and positive side of capacitor connect with negative side of 4.7uf capacitor.
and 2nd side of 4.7uf capacitor connect with 11 number pin.