Police car flush light circuit diagram using 6 bc547 transistors

How to make police car flushing light by simple method. 

This project is created according to police car flushing light, this project is really good and you can make it easy because there is no need for any IC to make it. you only use BC547,BC548 NPN low power transistors. You can use any other NPN mid power transistors like bd135,bd139 NPN transistors according to your application. 

Circuit diagram 

Parts :-

resistors -4.7k,22k,47k,100k,10ohms

Capacitors - 2.2uf,4.7uf/63volt

Transistors -bc547 (6no)

LED-Red🔴, Blue 🔵

Or battery 3.7 to 5 volt

CIRCUIT DIAGRAM 

police car flushing

Video clip