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Newly Updated Circuit Projects:

LM3915 IC Datasheet, Pinout, Application Circuits

Last Updated on May 18, 2026 by Swagatam 21 Comments

LM3915 typical application circuit

If you are having difficulty in understanding how to use an LM3915 IC, this article will help you to easily construct any desired applicable circuit using this IC. Here, I will elucidate the datasheet of the IC LM3915, its pinout functions, its main electrical specifications, and also a few useful application circuits. General Description The […]

Filed Under: Datasheets and Components Tagged With: Application, Circuits, Datasheet, LM3915, Pinout

High Current Zener Diode Datasheet, Application Circuit

Last Updated on May 18, 2026 by Swagatam 4 Comments

zener diode

Zener diodes that are normally available are mostly 1/4 watt or 1/2 watt types. And it is quite valid since the basic function of zener is to create stabilized reference voltage. Zener diodes are not designed for current regulation directly. However, for some applications where shunting excess voltage and current is necessary a high current […]

Filed Under: Datasheets and Components Tagged With: Application, Current, Datasheet, Diode, High, Zener

1000 watt to 2000 watt Power Amplifier Circuit Diagram

Last Updated on May 15, 2026 by Swagatam 71 Comments

1000 watt amp

In this article I will elaborately discuss a simple to built yet awesome 1000 watt amplifier circuit, which could be easily upgraded to achieve upto 2000 watt output. It uses relatively fewer components and could be quickly set up for getting a massive 1000 watt power output on any 4 ohm, 1kva loudspeaker. This circuit […]

Filed Under: Audio and Amplifier Projects Tagged With: 1000, 2000, Amplifier, Power, Watt

Phase Shift Oscillator Circuits – Wien-Bridge, Buffered, Quadrature, Bubba

Last Updated on September 22, 2026 by Swagatam 9 Comments

Fig3

A phase-shift oscillator is an oscillator circuit designed to generate a sinewave output. It operates with a single active element such as a BJT or an op amp configured in an inverting amplifier mode. The circuit arrangement creates a feedback from the output to the input through using an RC (resistor/capacitor) circuit arranged in a […]

Filed Under: Oscillator Circuits Tagged With: Bridge, Circuits, Oscillator, Phase, Shift, Wien

How to Troubleshoot Transistor (BJT) Circuits Correctly

Last Updated on May 20, 2026 by Swagatam 9 Comments

checking DC level of Vbe

Troubleshooting BJT circuits is basically a process of identifying the electrical faults in the network using multimeters across the various nodes in the circuit. BJT troubleshooting techniques is a huge topic and therefore including 100 % solutions and strategies can be perhaps difficult within a single article. Basically, the user should know about a handful […]

Filed Under: Electronics Theory Tagged With: BJT, Circuits, Correctly, Transistor, Troubleshoot

Transistor Common Collector

Last Updated on May 20, 2026 by Swagatam 5 Comments

common collector

A BJT common collector amplifier is a circuit in which the collector and the base of the BJT share a common input supply, hence the name common collector. In our previous articles we have learned the other two transistor configurations, namely the common-base and the common-emitter. In this article I have explained the third and […]

Filed Under: Electronics Theory Tagged With: Collector, Common, Transistor

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