3 Tone Siren


3 Tone Siren project produces Gun Sound, Police Siren and Ambulance Siren effects from a speaker.  This project is built around UM3561 IC driving an LM386 audio amplifier to give that extra punch.
3 Tone Siren


Supply input 6 VDC @ 200 mA
Output : Speaker, 8 Ω / 0.5 W
Two slide switches select and play different tones
On/Off Side switch for supply input
Terminal pins for supply input and speaker output
Power-On LED indicator
Four mounting holes of 3.2 mm each
PCB dimensions 42 mm x 64 mm

For more detail: 3 Tone Siren

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Ibrar Ayyub

I am an experienced technical writer holding a Master's degree in computer science from BZU Multan, Pakistan University. With a background spanning various industries, particularly in home automation and engineering, I have honed my skills in crafting clear and concise content. Proficient in leveraging infographics and diagrams, I strive to simplify complex concepts for readers. My strength lies in thorough research and presenting information in a structured and logical format.

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