• 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 | Contact | Calculators-online
You are here: Home / Search for "transmitter"

Search Results for: transmitter

Ultrasonic Weapon (USW) Circuit

Last Updated on June 2, 2022 by Swagatam 102 Comments

ultrasonicdefender

In this post I have explained a simple ultrasonic weapon circuit also called USW, using very ordinary parts such as IC 555 and a few other passive components to generate the required ultrasonic ear piercing sound. Controlling Crime with USW With rising crime in today’s society, especially against woman, carrying some sort of effective weapon […]

Filed Under: Security and Alarm

Make this TV Remote Jammer Circuit

Last Updated on July 3, 2019 by Swagatam 12 Comments

irTVremotejammercircuit

The proposed TV remote jammer circuit can be used for freezing and scrambling all TV remotes under the  specified vicinity.  How TV Remote Works As we all know the fundamental technology used in today’s TV or similar remote controls is Infrared (IR) light. The IR spectrum of light is invisible to the human eye, but […]

Filed Under: Remote Control Circuits

Simple RF Remote Control Circuit without Microcontroller

Last Updated on May 1, 2020 by Swagatam 303 Comments

In this article I have explained how to make a simple RF remote control circuit using ready-made RF 433MHz and 315MHZ RF modules, and without incorporating microcontroler ICs. With the easy availability of RF modules today making an RF remote control has become a childs play. It’s all about procuring the RF modules ready made […]

Filed Under: Remote Control Circuits

Non-Contact Cable Tracer Circuit

Last Updated on April 7, 2020 by Swagatam 13 Comments

noncontactcabletracercircuit

In this post I have explained a simple non-contact cable tracer circuit which can be used for locating faults in long wound cables and wire bundles without a physical contact. The Circuit Concept Why would you shred $100 to buy a cable tracer when it is easier to develop one spending less than $10! This […]

Filed Under: Sensors and Detectors

How to Collect Free Energy from Atmosphere

Last Updated on June 3, 2019 by Swagatam 130 Comments

freeenergycollectorcircuit 1

A free energy collector circuit helps to convert surrounding radio frequency waves to electric power and can provide 40 watts to 10 watts indefinitely. The Circuit Concept An option to increase the output power is achievable through proper set-up of an antenna. Placing an antenna in a close proximity of a large metal object helps […]

Filed Under: Free Energy

Simplest AM Radio Circuit

Last Updated on January 2, 2024 by Swagatam 150 Comments

Antenna Coil

The following circuit was taken from an old electronic book, it is indeed a very nice little two transistor radio receiver circuit which utilizes very few components yet is able to produce output over a loudspeaker and not just over headphones. Circuit Operation As can be seen in the given circuit diagram, the design is […]

Filed Under: Audio and Amplifier Projects

  • « Go to Previous Page
  • Page 1
  • Interim pages omitted …
  • Page 21
  • Page 22
  • Page 23
  • Page 24
  • Page 25
  • Page 26
  • Go to Next Page »

Primary Sidebar

Subscribe to New Circuit Ideas

Categories

  • Arduino Projects (87)
  • Audio and Amplifier Projects (132)
  • Automation Projects (17)
  • Automobile Electronics (101)
  • Battery Charger Circuits (82)
  • Datasheets and Components (102)
  • Electronics Theory (143)
  • Free Energy (37)
  • Games and Sports Projects (11)
  • Grid and 3-Phase (19)
  • Health related Projects (25)
  • Home Electrical Circuits (12)
  • Indicator Circuits (14)
  • Inverter Circuits (87)
  • Lamps and Lights (142)
  • Meters and Testers (69)
  • Mini Projects (46)
  • Motor Controller (64)
  • Oscillator Circuits (27)
  • Pets and Pests (15)
  • Power Supply Circuits (108)
  • Remote Control Circuits (50)
  • Security and Alarm (64)
  • Sensors and Detectors (100)
  • Solar Controller Circuits (59)
  • Temperature Controllers (42)
  • Timer and Delay Relay (49)
  • Transmitter Circuits (29)
  • Voltage Control and Protection (37)
  • Water Controller (36)

Calculators

  • Battery Back up Time Calculator
  • Capacitance Reactance Calculator
  • IC 555 Astable Calculator
  • IC 555 Monostable Calculator
  • Inductance Calculator
  • LC Resonance Calculator
  • LM317, LM338, LM396 Calculator
  • Ohm’s Law Calculator
  • Phase Angle Phase Shift Calculator
  • Power Factor (PF) Calculator
  • Reactance Calculator
  • Transistor Astable Calculator
  • Transistor base Resistor Calculator
  • Voltage Divider Calculator
  • Wire Current Calculator
  • Zener Diode Calculator
  • Filter Capacitor Calculator
  • Buck Converter Calculator
  • Boost Converter Calculator
  • Solar Panel, Inverter, Battery Calculator
  • Wire Current Calculator
  • SMPS Transformer Calculator
  • IC SG3525, SG3524 Calculator
  • Inverter LC Filter Calculator

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 Simple Delay Timer Circuits Explained
  • Swagatam on Timer Based Cell Phone Charger Circuit
  • Swagatam on 10 LED Tachometer Circuit Diagram
  • Göran on 10 LED Tachometer Circuit Diagram
  • Nitesh Agrawal on Timer Based Cell Phone Charger Circuit

Company

  • Privacy Policy
  • Cookie Policy
  • About Me
  • Contact
  • Disclaimer
  • Copyright
  • Videos
  • Sitemap

Social Profiles

  • Twitter
  • YouTube
  • Instagram
  • Pinterest
  • My Facebook-Page
  • Quora
  • Stack Exchange
  • Linkedin
  • © 2025 · Swagatam Innovations