DOORBELL

Step 1: Gathering Tools & Materials

Materials:
NAME RANGE NO
Resistor - 100R - 1
Capacitor - 220uf/25v - 1
Transistor - BC 547 - 2
BT66T19L 1
Speaker - 4 ohm - 1
Wire ----- required
Battery - AA size - 2
Common PCB ------- required
Push Button Switch - 1
Soap Box
Plastic Bush
Small Tic Tac box
Super Glue
Battery Cap
TOOLS&EQUIPMENT
-Soldering Iron
-Soldering Wire
-Hot Glue Gun
-Wire Cutters
-Insulating Tape

Step 2: ASSEMBLING THE CIRCUIT

Mark the required size on PCB board and cut it out.
Assemble the circuit by give plan.
Solder the wire on the terminals of speaker and connect the speaker to the circuit board.

Step 3: MAKE THE COVER FOR DOORBELL

Because of choosing the Soap Box for this project, normally it contains holes on bottom this will help to spread the speaker sound.
Take the Soap Box; this contains two parts top and bottom parts.
We are going to fix the speaker on Soap Box bottom side ( hole side) by using the Glue Gun.
Mount the plastic bushes on bottom of the circuit board by the help of Super Glue.
Take the top part of the Soap Box; place the circuit board on it by the help of Super Glue.