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“Hee Haw” Siren Circuit

Last updated on 2 June 2026 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. Also, simple electronic components such as resistors, capacitors, transistors and sometimes ICs make up the circuit. The pitch of the sound goes up and down again and again and we […]

Filed Under: Alarm Circuits, Audio Circuits, DIY Projects, Oscillator Circuits, Transistor Circuits

How to Convert a Speaker into a MIC Circuit

Last updated on 2 June 2026 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, as it uses the speaker to catch sound and the sound turns into a weak signal. Furthermore, this transistor circuit makes the signal stronger, but the mic wont be very clear but it is […]

Filed Under: Audio Circuits, DIY Projects, Hobby Circuits, Mini Projects

Fog Horn Circuit

Last updated on 2 June 2026 by Admin-Lavi Leave a Comment

Ever wondered how fog horns make that deep, spooky sound? In the same way, this Fog Horn Circuit is a small sound-making device that uses electronics to produce the low, rising and falling fog horn noise. Moreover, people use these circuits for fun projects as well as for learning electronics. Circuit Working: Parts List: Components […]

Filed Under: Alarm Circuits, Audio Circuits, DIY Projects, Transistor Circuits

Hand Grip Strength Tester Circuit

Last updated on 2 June 2026 by Admin-Lavi Leave a Comment

Do anyone want to test their grip strength? Like small hand wrestling with ourselves? So 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: Components […]

Filed Under: DIY Projects, Hobby Circuits, Meters and Testers

Simple Guitar Fuzz Circuit

Last updated on 2 June 2026 by Admin-Lavi Leave a Comment

Imagine we play guitar but we want loud, fuzzy, buzzing sound which is not clear; so 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 […]

Filed Under: Audio Circuits, DIY Projects, Hobby Circuits, Mini Projects, Transistor Circuits

How to use an LED as a Light Detector Circuit

Last updated on 2 June 2026 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 in the right way, it generates a small amount of electricity; scientists call this phenomenon the photovoltaic effect, which works like a tiny solar panel. In this post for How to use an LED as a […]

Filed Under: DIY Projects, LED and Lamps, Mini Projects, Sensors and Detectors

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