• Skip to main content
  • Skip to primary sidebar

Homemade Circuit Projects

Need circuit help? Post them in the comments! I've answered over 50,000!

Blog | Categories | About | Hire Me | Contact | Calculators-online
You are here: Home / Archives for 2012

Archives for 2012

Amplifier Short/Overload Protection Circuit – 2 Ideas Discussed

Last Updated on May 15, 2026 by Swagatam 73 Comments

simple amplifier protection circuit

Due to some reason if the loudspeaker of a power amplifier gets shorted, that may lead to a fatal damage to the amplifier component. To prevent this an amplifier short circuit protector circuit can be very useful. In the following post I have explained 2 simple amplifier short circuit or overload protection circuits for safeguarding […]

Filed Under: Audio and Amplifier Projects Tagged With: Amplifier, Discussed, Ideas, Overload, Protection, Short

DIY 100 Watt MOSFET Amplifier Circuit with PCB

Last Updated on May 15, 2026 by Swagatam 166 Comments

1002Bwatt2Bmosfet2Bamplifier2Bcircuit

MOSFET based amplifiers as we all know are outstanding with their sound qualities and they can easily beat the performance of other counterparts based on power transistors or linear ICs. Why use MOSFETs in Amplifiers Amplifiers based on mosfets are not always easy to design or make. Moreover after assembling a prototype, testing to perfection […]

Filed Under: Audio and Amplifier Projects Tagged With: 100, Amplifier, DIY, MOSFET, PCB, Watt

How to Make a Telephone Amplifier Circuit

Last Updated on May 15, 2026 by Swagatam 8 Comments

telephoneamplifiercircuitusingICCA3020

The simple telephone ring tone amplifier circuit I have explained in this article saves the inconvenience of picking the telephone handset while speaking over a call. This circuit also particularly becomes useful when there’s a need of the conversation to become audible to a number of people or a group of people. Introduction When the […]

Filed Under: Audio and Amplifier Projects Tagged With: Amplifier, Telephone

Simplest Piezo Driver Circuit Explained

Last Updated on May 15, 2026 by Swagatam 47 Comments

piezodrivercircuit1

In the previous post I explained a piezo transducer element and learned how to use it with electronic circuits. In this article we will see how a piezo tranducer can be driven or operated using a simple circuit. As discussed earlier a piezo transducer basically requires a frequency to vibrate and reproduce the required sound. […]

Filed Under: Audio and Amplifier Projects Tagged With: Driver, Explained, Piezo, Simplest

Make This Powerful 200+200 watts Car Stereo Amplifier Circuit

Last Updated on May 15, 2026 by Swagatam 42 Comments

200wattcarstereoamplifiercircuit

No complex wiring, no costly MOSFETS and no cumbersome heatsinks, yet a powerful 200+200 watt stereo amplifier circuit, which can be built within hours using just a couple ICs, right in your home. Yes we are discussing the state-of-the-art thick film hybrid IC STK4050II, by SANYO.The IC is specifically designed for amplifying music at an […]

Filed Under: Audio and Amplifier Projects Tagged With: 200, Amplifier, Powerful, Stereo, watts

Single Transistor Radio Receiver Circuit

Last Updated on May 15, 2026 by Swagatam 55 Comments

one transistor radio circuit

This is probably the simplest radio receiver circuit that one could ever imagine of making. The circuit is so simple that it could be finished assembling within a few minutes and you are already listening your favorite programs over it. Introduction What are the fundamental criteria associated with radio reception? An antenna stage, a band […]

Filed Under: Audio and Amplifier Projects Tagged With: Radio, Receiver, Single, Transistor

  • « Go to Previous Page
  • Page 1
  • Interim pages omitted …
  • Page 16
  • Page 17
  • Page 18
  • Page 19
  • Page 20
  • Interim pages omitted …
  • Page 33
  • Go to Next Page »

Primary Sidebar



My Youtube Channel

Circuit Simulator

circuit simulator image



Subscribe to get New Circuits in your Email



Categories

  • Arduino Projects (95)
  • Audio and Amplifier Projects (134)
  • Automation Projects (18)
  • Automobile Electronics (103)
  • Battery Charger Circuits (88)
  • Datasheets and Components (109)
  • Electronics Theory (148)
  • Energy from Magnets (27)
  • Games and Sports Projects (11)
  • Grid and 3-Phase (20)
  • Health related Projects (27)
  • Home Electrical Circuits (13)
  • Indicator Circuits (16)
  • Inverter Circuits (100)
  • Lamps and Lights (162)
  • Meters and Testers (72)
  • Mini Projects (28)
  • Motor Controller (69)
  • Oscillator Circuits (28)
  • Pets and Pests (15)
  • Power Supply Circuits (91)
  • Remote Control Circuits (50)
  • Renewable Energy (12)
  • Security and Alarm (65)
  • Sensors and Detectors (107)
  • SMPS and Converters (45)
  • Solar Controller Circuits (60)
  • Temperature Controllers (43)
  • Timer and Delay Relay (50)
  • Voltage Control and Protection (44)
  • Water Controller (37)
  • Wireless Circuits (31)



Other Links

  • Privacy Policy
  • Cookie Policy
  • Disclaimer
  • Copyright
  • Videos
  • Sitemap

People also Search

555 Circuits | 741 Circuits | LM324 Circuits | LM338 Circuits | 4017 Circuits | Ultrasonic Projects | SMPS Projects | Christmas Projects | MOSFETs | Radio Circuits | Laser Circuits | PIR Projects |



Recent Comments

  • Swagatam on High Voltage, High Current DC Regulator Circuit
  • Francis Adamu on High Voltage, High Current DC Regulator Circuit
  • Swagatam on Control a Relay ON OFF Using SIM Card, Mobile Phone, and Arduino
  • Louis83 on Control a Relay ON OFF Using SIM Card, Mobile Phone, and Arduino
  • Swagatam on Blood Electrification Circuit: Explanation And Working Principle

Social Profiles

  • Twitter
  • YouTube
  • Instagram
  • Pinterest
  • My Facebook-Page
  • Stack Exchange
  • Linkedin

© 2026 · Swagatam Innovations