Police Siren - Solder (without PCB And Battery)
Introduction
This is an ingenious little device that is an ideal introduction to electronics. It is fun to build and more fun to play with!
Now you can built your own Police Siren .
This kit include all the components as below :
Resistors
R1 68 kΩ (1/4 watt)
R2 68 kΩ “
R3 10 kΩ “
R4 10 kΩ “
R5 10 kΩ “
Capacitor
C1 10uF 16V Electrolytic
C2 0.1uF ceramic
C3 0.1uF Ceramic
C4 100uF 16V electrolytic
Semiconductors
U1,U2 Integrated Circuit NE555 (Timer)
Miscellaneous
Loudspeaker 8 Ω EMB-3008A type (30mm*12.7mm pin distance: 15mm )
Battery snap for 9V battery
And lastly is the
Circuit Diagram
