How to Build a Simple Musical Door Bell
Although a bit elaborate, the proposed design of a musical doorbell circuit provides some useful features like a built-in timer and a pleasing, …
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How to Build a Smoke Detector - Explained Through Schematic Diagram
The simple schematic diagram of a smoke detector presented here utilizes the gas sensor TGS 813 as the main detecting component. The circuit is pretty …
Continue ReadingElectrical Fire Protection Systems in Industries - Smart Ways to Prevent, Detect and Escape Workplace Fires
Electricity has become very common in our day to day lives and because of this we tend to take it for granted. Carelessness or not following …
Continue ReadingHow to Build Battery Operated Window and Door Alarms
This little spy security gadget once installed over a door will faithfully sound an alarm whenever the door is opened, possibly by a trespasser. The …
Continue ReadingHow to Make Tone Controls for a Stereo Amplifier
The excitement involved with hearing digital music outputs from an amplifier may be typically due to the presence of attached active tone controls …
Continue ReadingCan an Open-Delta Connection Provide True Three Phase with Two Transformers?
A transformer open-delta configuration is used to drive 3-phase loads where the power requirement is less and where the current load is small and may …
Continue ReadingRemoving Vibration Noise from Air Conditioning Units
Air conditioners have become a necessity at residential premises as well as commercial spaces to bring down heat levels. They also dehumidify the air …
Continue ReadingHow Tire Pressure Monitoring and Warning Systems Work
Remote tire pressure sensing allows a vehicle owner to get current, constantly-updated pressure indication from a reading on the dash. This article …
Continue ReadingNoise in Phase Locked Loop (PLL) Circuits Diagnosed
A PLL is an electronic circuit that produces a replica of its input frequency using a feedback mechanism. Noise in phase locked loops may be due to …
Continue ReadingTypes of Stepper Motors and How They Work
Stepper motors have become favorites of industry motor applications simply because these machines exhibit accurate responses to applied electrical …
Continue ReadingBuild 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 ReadingHow to Make Your Own Home Intercom System
This little home communications system can be used to talk across different rooms or locations within a large premise or an apartment. Build your own …
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