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You are here: Home / Archives for 741 IC Circuits

IC 741 Power Supply Circuits

Last Updated on December 21, 2021 by Swagatam 26 Comments

In this post we learn how to make simple yet fully stabilized and regulated, variable power supply circuits using the IC 741 op amp. Three versions of the 741 power […]

Filed Under: 741 IC Circuits, Power Supply Circuits

Ice Warning Circuit for Automobiles

Last Updated on October 1, 2019 by Swagatam 2 Comments

Devices that react to variations in atmosphere or fluid heat are simple to construct due to the easy availability of thermistors. This car ice warning circuit explains how to implement […]



Filed Under: 741 IC Circuits, Car and Motorcycle, Mini Projects

Comparator Circuits using IC 741, IC 311, IC 339

Last Updated on January 31, 2020 by Swagatam 13 Comments

The basic function of a comparator circuit to compare two voltage levels at its input pins and produce an output to show which input voltage has higher potential than the […]

Filed Under: 741 IC Circuits, Electronic Components, Electronic Devices and Circuit Theory

4 Simple Clap Switch Circuits [Tested]

Last Updated on May 15, 2022 by Swagatam 207 Comments

The clap switch circuits explained here will toggle a connected load ON and OFF in response to alternate clap sounds? Here we discuss 4 unique and simple designs which can […]

Filed Under: 4017 IC Circuits, 741 IC Circuits, Home Electrical Circuits, Simple Circuits

Remote Control Infrared Tester Circuit

Last Updated on January 14, 2023 by Swagatam 12 Comments

We all use remote control handsets for controlling various household devices such as TV, AC, Music systems, curtains etc, and sometimes we seem to have problems with these devices, or […]

Filed Under: 741 IC Circuits, Home Electrical Circuits, Infrared (IR), Mini Projects, Remote Control

18650 2600mAh Battery Datasheet and Working

Last Updated on March 27, 2021 by Swagatam 33 Comments

In this article we will try to understand the main specifications and datasheet of the Li-Ion cell 18650 2600 mAh, which is one of the most popular Li-ion batteries, and […]

Filed Under: 741 IC Circuits, Datasheets, Electronic Components, LM317/LM338

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