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Lamps and Lights

“WELCOME” LED Display Circuit

Last Updated on January 12, 2024 by Swagatam 55 Comments

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In this post I have explained how to make a chasing “WELCOME” display circuit sign board, which illuminates each alphabet sequentially until all the 7 alphabets are lit and then the whole display shuts off, the cycle continues permanently as long as the circuit is powered. Overview I have already discussed a similar concept explaining […]

Filed Under: Lamps and Lights Tagged With: Display, LED, WELCOME

Sunrise Sunset Simulator LED Circuit

Last Updated on January 2, 2024 by Swagatam 9 Comments

In this post I have explained how to make a sunrise/sunset simulator circuit using LEDs and just a couple of BJTs. The idea was requested by Mr. Jerry Circuit Objectives and Requirements Apparently natural daylight is best for humans in regulating our circadian rhythm. I would like to build an LED lighting circuit to control […]

Filed Under: Lamps and Lights Tagged With: LED, Simulator, Sunrise, Sunset

Beacon Level Indicator Circuit for Combine Harvester Grain Tanks

Last Updated on July 6, 2019 by Swagatam 2 Comments

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In this post I have explained a beacon indicator circuit for combine harvester grain tanks. The idea was requested by Mr. John Bosch. Circuit Objectives and Requirements I would like to retrofit the rotating beacon grain tank level indicator system shown below,  to my older combine harvester. The particular part of the system I want […]

Filed Under: Lamps and Lights Tagged With: Beacon, Combine, Grain, Harvester, Indicator, Level

Corona Effect Generator Circuit

Last Updated on January 12, 2024 by Swagatam 2 Comments

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In this post we study regarding what is corona effect and how to make a corona effect generator circuit at home using a CDI coil and a tesla coil configuration. Then idea was suggested by Mr. Sanjoy Corona Treatment for Paper Coating Many many thanks for posting the alternate switching timer circuit as requested. Although […]

Filed Under: Lamps and Lights Tagged With: Corona, Effect, Generator

Simple Faraday Flashlight – Circuit Diagram and Working

Last Updated on November 9, 2024 by Swagatam 14 Comments

torchdia

In this article I will show how to construct a Faraday flashlight circuit using only a coil/magnet assembly which requires no battery. It’s not free energy, but it converts oscillatory motion to electricity, which can power the flashlight for a couple of minutes. This flashlight will be useful in emergency situations where no access to […]

Filed Under: Lamps and Lights Tagged With: Faraday, Flashlight, Simple, Working

How to Add a Dimmer Facility to a LED Bulb

Last Updated on June 18, 2022 by Swagatam 97 Comments

In this article I have explained how to make an LED dimmer circuit for enabling a dimming facility to any mains operated LEDs bulb. How LED Bulbs Work We know that our ceiling fans and incandescent bulbs can be easily controlled using triac dimmer switches, and we are quite used to with dimmer switches in […]

Filed Under: Lamps and Lights Tagged With: Bulb, Dimmer, Facility, LED

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