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US Police Siren

Available:In Stock

Product SKU: LGKT124

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₹ 499 ~~₹ 599~~

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Highlights

Product Code: LGKT124
Technical Support: upto 30mins Video support
Handmade
Make in India

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DO IT YOURSELF

READY TO USE

Details

Unsoldered PCB and all components to be soldered on PCB.
Includes all ICs, Connector wires and Speaker.
Documentation: PCB Specifications Component list, and Circuit diagram.
Power Supply: No battery included, Includes 12 Volt DC adapter with the kit.
Video tutorial is available on YouTube.

One set of the readymade in working condition.
Includes all ICs, Connector wires and Speaker.
Documentation: PCB Specifications Component list and Circuit diagram.
Power Supply: No battery included, Includes 12 Volt DC adapter with the kit.
Video tutorial is available on YouTube.

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Specification

Description

The US police siren circuit presented in this schematic is an alarm circuit that produces the sound of the US police. This US police siren schematic circuit is based on the 555 multi-vibrator. To build this US siren circuit we can use two 555 IC’s or one 556 IC which contains two 555 chips in one package. Synchronously with the siren sound, a lamp will flash.

Both 555 IC’s timers are configured to operate as astable multi-vibrators. The first-timer is configured to supply a rectangular signal of about 2 Hz at pin 9. The lamp is switched on and off by way of the power transistor. The second 555 is configured to supply a square wave at pin 5 that drives the loudspeaker. The loudspeaker of the siren must have a value between 8 and 32 ohms.