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Cell Phone Ring to Flashing Lamp Indicator for People with Hearing Loss

Last Updated on March 20, 2019 by Swagatam 9 Comments

Coil

In this post I have explained a simple sound to flashing lamp circuit which can be used for facilitating people with hearing loss, so that they are able to visualize a distant cell phone rings through flashing of a lamp, and immediately understand regarding an incoming call in their cell phone. The following explanation and […]

Filed Under: Sensors and Detectors Tagged With: Cell, Flashing, Indicator, Lamp, Phone, Ring

Extended Telephone Ring Amplifier/Repeater Circuit

Last Updated on May 5, 2022 by Swagatam 2 Comments

telephoneringrepeatercircuit

The discussed phone repeater circuit can extend the range of your land line ring sound from the phone such that one is able to make a call heard in another room or even in another house. By: R.K. Singh Circuit Operation The circuit can be connected with an attached buzzer, the buzzer with a driving […]

Filed Under: Audio and Amplifier Projects Tagged With: Amplifier, Extended, Repeater, Ring, Telephone

LED Tail Ring Light Circuit for your Car

Last Updated on August 14, 2019 by Swagatam 8 Comments

fancyLEDcartaillightcircuit

In the following post I have explained a fancy LED sequencing/diverging ring light circuit which can be used as a tail brake light  in cars. The idea was requested by one of the avid readers of this blog, Mr. Bobby. I have explained more. Technical Specifications: Hello, I was just reading thru your wonderful article […]

Filed Under: Automobile Electronics Tagged With: LED, Light, Ring, Tail

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