Tag Archives: electronic siren schematic

Electronic Siren Schematic

Schematic Diagrams      Comments Off on Electronic Siren Schematic

This is the electronic siren schematic, built using three ICs: CD4011 NAND gate logic, CD4066 Bilateral Switch and CD4046 Micropower Phase-Locked Loop (PLL). Itis quite simple electronic siren design, low cost and easy to assemble. With this circuit we can create a changing tone siren. The oscillator IC1A-B consists of… Read more »

Electronic Siren

Schematic Diagrams      Comments Off on Electronic Siren

This is Electronic Siren circuit diagram. The sound produced imitates the rise and fall of an American police siren. When first switched on the 10u capacitors is discharged and both transistors are off. When the push button switch is pressed to 10u capacitor will charge via the 22k resistor. This… Read more »