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Freezerless Refrigerator Circuit Diagram Explained

Last Updated on January 2, 2023 by Swagatam 4 Comments

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 […]

Filed Under: Home Electrical Circuits

AC Ammeter Circuit for Measuring Current across 220 V Appliances

Last Updated on September 8, 2022 by Swagatam Leave a Comment

In this article we learn how to build a simple AC ammeter circuit which can be used for checking the current consumption of household 220 V or 120 V appliances. […]



Filed Under: Home Electrical Circuits, Meters and Testers

Letter Box Open Indicator Circuit

Last Updated on December 2, 2021 by Swagatam 16 Comments

In this post we learn how to build a letter box open indicator circuit, which indicates through an LED if the letter box had been opened either by the postman, […]

Filed Under: Home Electrical Circuits, Mini Projects

Two Tone Door bell Circuit

Last Updated on May 26, 2021 by Swagatam Leave a Comment

The electronic 2 tone door bell circuit is designed around the popular IC 555. The IC 555 is extensively applied in numerous varieties of timers and also as a basic […]

Filed Under: Audio and Amplifier Projects, Home Electrical Circuits

How RCCB Works [with Circuit Diagram]

Last Updated on June 18, 2022 by Swagatam Leave a Comment

A Residual Current Circuit Breaker (RCCB) or a ground fault circuit interrupter (GFCI), is a form of circuit breaker which will shut down mains AC power as soon as it […]

Filed Under: Home Electrical Circuits

Push-Button Light Dimmer Circuit

Last Updated on October 16, 2020 by Swagatam Leave a Comment

The post explains the construction details of a triac based push-button dimmer circuit which can be used for controlling incandescent, and fluorescent lamp brightness through push-button pressing. Another feature of […]

Filed Under: Home Electrical Circuits

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