How to Build a Simple 250 to 5000 Watts PWM DC/AC 220V Power Inverter
The proposed design of a 250 to 5000 watts PWM DC/AC 220V power inverter presented here is probably the most straightforward inverter design one can …
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Hobbyist & DIY Electronic Devices &Amp; Circuits
Showing guides and explainers filed under Hobbyist & DIY Electronic Devices &Amp; Circuits.
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 …
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How 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 …
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How 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 …
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Types 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 …
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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 …
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How 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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How to Build a Homemade 24 Volt AC to DC 20 Amp Transformer With Old Parts
Found 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 …
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How to Build an Electrical Toy Telephone That Uses no Power
This 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 …
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