ELF stands for Extremely Low Frequency, which is an electromagnetic radiation generated by most of out household electrical equipment. Regarding the effect and severity of ELF fields on human health, […]
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LED Light Circuit for Street Vendors, Hawkers, Shopkeepers
In this post we will discuss how to build a very simple, low cost LED lamp with charger. This unit can be used by any street seller, vendor, hawker, to […]
Freezerless Refrigerator Circuit Diagram Explained
Existing frost free double door refrigerators function with the help of defrost timer and defrost heater for automatic defrosting. The objective of my circuit is to convert the existing refrigerator […]
Neon Tube Driver Circuit
The high-voltage neon tube driver circuit discussed in this article generates 500 volts of high-frequency AC (15 kHz). This circuit may be used to brightly illuminate all types of neon […]
Crystal Radio Sets with Amplifier Circuit
A crystal radio receiver, often known as a crystal set, is a simplest form of radio receiver that was widely used in the initial periods of radio. A crystal radio […]
Simple Buck Converter Circuits using Transistors
In this post we learn some basic facts about DC to DC buck converters and also learn how to build a simple buck converter circuit. A buck converter is also […]