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Search Results for: industrial

Simple Delay Timer Circuits Explained

Last Updated on June 8, 2020 by Swagatam 350 Comments

In this post we discuss the making of simple delay timers using very ordinary components like transistors, capacitors and diodes. All these circuits will produce delay ON or delay OFF […]

Filed Under: Mini Projects, Timer and Delay Relay

Build a Homemade GSM Car Security System

Last Updated on November 2, 2019 by Swagatam 52 Comments

This super simple circuit design of a gsm car security system really works.Don’t believe it? Find out and learn the simple method of constructing it. How would you feel if […]



Filed Under: Car and Motorcycle

Making a Thermocouple or a Pyrometer Circuit

Last Updated on April 15, 2019 by Swagatam 6 Comments

To make a furnace temperature meter, the sensing element is required to be particularly robust so that it is able to withstand the extreme high temperatures generally developed in furnaces […]

Filed Under: Heater Controllers

4 Simple Transformerless Power Supply Circuits Explained

Last Updated on September 14, 2020 by Swagatam 222 Comments

105/400V capacitor 1uF 400V capacitor for transformerless power supply

In this post we discuss 4 easy to build, compact simple transformerless power supply circuits. All the circuits presented here are built using capacitive reactance theory for stepping down the […]

Filed Under: Transformerless Power Supply

5 Simple Water Level Controller Circuits

Last Updated on May 10, 2020 by Swagatam 132 Comments

An automatic water level controller is a device which senses undesired low and high water levels in a tank, and switches a water pump ON or OFF accordingly to maintain […]

Filed Under: Mini Projects, Water Level Controller



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