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“Hee Haw” Siren Circuit

Last updated on 16 July 2025 by Admin-Lavi Leave a Comment

The “Hee Haw” Siren Circuit is a fun sound project that makes a high and low noise like “Hee Haw” instead of one long sound. It is made using simple electronic parts like resistors, capacitors and transistors or sometimes ICs. The pitch of the sound goes up and down again and again. We can find […]

Filed Under: Alarm Circuits, Audio Circuits

How to Convert a Speaker into a MIC Circuit

Last updated on 16 July 2025 by Admin-Lavi Leave a Comment

This article for How to Convert a Speaker into a MIC Circuit shows how to turn a speaker into a microphone. It uses the speaker to catch sound. The sound turns into a weak signal. A transistor circuit makes the signal stronger. The mic wont be very clear but it is a fun way to […]

Filed Under: Amplifier Circuits

Fog Horn Circuit

Last updated on 16 July 2025 by Admin-Lavi Leave a Comment

Ever wondered how fog horns make that deep, spooky sound? This Fog Horn Circuit is a small sound-making device. It uses electronics to make the low, rising and falling fog horn noise. People use these circuits for fun projects or to learn about electronics. Circuit Working: Parts List: Component Value/Type Quantity Resistors( All resistors are […]

Filed Under: Alarm Circuits

Hand Grip Strength Tester Circuit

Last updated on 14 July 2025 by Admin-Lavi Leave a Comment

Do anyone want to test their grip strength? Like small hand wrestling with ourselves? This Hand Grip Strength Tester Circuit is a hand grip tester. It uses simple electronic parts to check how hard we can squeeze. More squeeze then more lights turn ON which shows our grip power. Circuit Working: Parts List: Component Value/Type […]

Filed Under: Meters and Testers

Simple Guitar Fuzz Circuit

Last updated on 14 July 2025 by Admin-Lavi Leave a Comment

Imagine we play guitar but we want loud, fuzzy, buzzing sound which is not clear. A Simple Guitar Fuzz Circuit is like small monster in a box. It changes our normal sound and makes it fuzzy, noisy or roaring. Rock and blues players use this as it comes in small box with buttons we press […]

Filed Under: Audio Circuits

How to use an LED as a Light Detector Circuit

Last updated on 14 July 2025 by Admin-Lavi Leave a Comment

LEDs mostly make light but they can also sense light! Like a secret power when light hits an LED the right way it makes a tiny bit of electricity. This is called the photovoltaic effect like a tiny solar panel. In this post for How to use an LED as a Light Detector Circuit we […]

Filed Under: Sensors and Detectors

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