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Semiconductor Tester Circuit [LED, Transistor, SCR Tester]

Last Updated on January 6, 2023 by Swagatam Leave a Comment

The semiconductor tester circuit explained below performs continuity tests on SCRs, bipolar transistors, and diodes. How the Circuit Works A squarewave oscillator with a frequency of about 350 Hz is produced […]

Filed Under: Meters and Testers

22 Watt Stereo Amplifier Circuit using TDA1554

Last Updated on January 5, 2023 by Swagatam 2 Comments

The IC TDA1554 based Amplifier circuit discussed in this article can provide up to 22 watts per channel into a couple of four-ohm loudspeakers. The main attraction is that you […]



Filed Under: Audio and Amplifier Projects

How to Calculate Zener Diode Resistor

Last Updated on October 15, 2022 by Swagatam Leave a Comment

In this article we learn how to calculate and the find the value of the zener diode resistor using simple formulas. What is a Zener Diode Zener diodes are semiconductor […]

Filed Under: Electronic Components, Electronics Tutorial

Point Contact Diodes [History, Construction, Application Circuit]

Last Updated on September 11, 2022 by Swagatam Leave a Comment

In this article we will comprehensively learn about the early point contact diodes, and their modern versions which are Germanium diodes. Here we will learn the following facts: Brief history […]

Filed Under: Electronic Components, Electronics Tutorial

Ion Detector Circuit [Static Discharge Detector]

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

The following post discusses a simple ion detector circuit which can be used for detecting positive and negative ions generated by high voltage circuits. This device can be also used […]

Filed Under: Sensors and Detectors

Light Emitting Diodes (LED) Explained

Last Updated on August 30, 2022 by Swagatam Leave a Comment

The full form of LED is Light Emitting Diode. LEDs are special type of semiconductor diodes which emit light in response to a potential difference applied across their terminals, hence […]

Filed Under: Electronics Tutorial, LED and Light Effect

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