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Crystal Radio Sets with Amplifier Circuit

Last Updated on November 29, 2022 by Swagatam 19 Comments

crystal set amplifier circuit using asingle transistor

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 set does not require any external power supply to operate. Instead, it simply makes sound using the energy of the radio signals that is received. […]

Filed Under: Audio and Amplifier Projects Tagged With: Amplifier, Crystal, Radio, sets

Automatic Voltage Stabilizer Circuit for TV sets and Refrigerator

Last Updated on November 8, 2024 by Swagatam 122 Comments

wiring

Here we will study the design of a simple automatic mains AC voltage stabilizer which can be applied for safeguarding appliances like TV and refrigerators from fluctuating voltages. A voltage stabilizer is a device which is designed to sense inappropriate voltage fluctuations in AC mains supply inputs, and correct them to produce a stabilized voltage for the […]

Filed Under: Voltage Control and Protection Tagged With: Automatic, Refrigerator, sets, Stabilizer, TV, Voltage

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