Is anyone looking for a special doorbell? Instead of just buzzing this tutorial shows how to create a musical doorbell that plays a small melody! It just uses a few extra parts including a unique chip known as a UM66T melody generating IC. Because it is simple to construct and enjoyable to use this project […]
Simple 220V Inverter Circuit using 2N3055 Transistors
This article shows how to build a powerful inverter circuit that can turn a 12V battery like a car battery into household electricity 220V. It is easy to build, uses few parts and is very efficient. There should be safety measures while using homemade inverters so be sure to check before anyone builds one. What […]
Simple Audio Mixer Circuit using a Single Transistor
The construction of a simple circuit which mixes two sounds is explained in this article. This device uses a single transistor and a tiny switch for mixing two different sounds into one much like a little DJ mixer. This project is an excellent way to learn how to use electronics for blending sounds. Circuit Working: […]
Simple 220V AC Light Dimmer Circuit
Building a 220V AC light dimmer switch for the lights at home is explained in this post. With the help of this dimmer one can control how bright the lights get by carefully turning off the current. Creating high voltage circuits can be risky. An experienced electrician should install it in ones house and should […]
Simple Electronic Fishing Lure Circuit
The construction of an electrical fishing lure is shown in this article. It creates sound that might draw fish with a tiny buzzer. Despite being easy to construct it has the ability to be highly successful. Warning: Fishing laws differ from place to place. When using electronic lures for fishing ensure it is legal. What […]
Simple Lie Detector Circuit using Transistors
Enjoy making this circuit for detecting lies! Real lie detectors are far more complicated so it will not be perfect but it is an an entertaining method to see how our bodies respond to stress. This circuit uses differences in sweating to figure out whether someone is speaking the truth. People who are worried or […]