Build a Simple Hand Crank Flashlight
A hand operated flashlight does not need input from sources like wind or sun in order to generate electricity. Just pressing a spring-gear mechanism …
Continue ReadingA hand operated flashlight does not need input from sources like wind or sun in order to generate electricity. Just pressing a spring-gear mechanism …
Continue ReadingThis little home communications system can be used to talk across different rooms or locations within a large premise or an apartment. Build your own …
Continue ReadingFound an old TV transformer in your electronic junk box and thinking of building a 24 volt AC to DC 20 amp transformer? Just add some diodes, filter …
Continue ReadingThis toy telephone uses a couple of radio speakers and connecting wires. An update to the string-and-can telephone, this project can be amusing, and …
Continue ReadingHall Effect sensors are miniature SMD ICs based on CMOS technology which are able to convert fast switching magnetic fields induced over their …
Continue ReadingMosquitoes have always remained an excruciatingly irritating pest. Bet you wish you had a way to kill them automatically. Perhaps you’d like to …
Continue ReadingThe article explains a simple yet innovative circuit idea for a motion detector alarm that can be deployed in restricted places as a security device …
Continue ReadingLooking for an easy, DIY project to try? You’ll be surprised by how easy it is to wire your own doorbell. Follow this simple tutorial.
Continue ReadingZener diodes tend to be easily affected by external temperature variation and therefore are not reliable enough for deriving consistent voltage …
Continue ReadingEver been to a paranormal infested area? Relax… you don’t actually need to be there. The simple infrasound generator circuit explained here should be …
Continue ReadingDo you miss calls due to a quiet ring on your landline telephone? This can be a real problem in houses having multiple rooms. A simple circuit idea of …
Continue ReadingWith car thieves getting smarter day by day, installing a car security system becomes a must for every car owner today. However these systems are very …
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