• Skip to primary navigation
  • Skip to main content
  • Skip to primary sidebar

Circuit Ideas for You

Get free circuit ideas online.

  • Home
  • Privacy Policy
  • About
Home » DIY Projects » Page 4

DIY Projects

How to Build a Simple Solar Cell Circuit using a 2N3055 Transistor

Last updated on 30 April 2026 by Admin-Lavi Leave a Comment

Anyone wants to know how solar panel work? then go through this article to understand it better. We can try How to build a Simple Solar Cell Circuit using a 2N3055 Transistor at home which is possible, also, if we like electronics and know transistor then we will enjoy this project. Furthermore, this model is […]

Filed Under: DIY Projects, Hobby Circuits, Mini Projects, Solar Circuits, Transistor Circuits

Continuity Tester Circuit

Last updated on 30 April 2026 by Admin-Lavi Leave a Comment

This Continuity Tester Circuit uses two transistor like small switch for checking wire is good or bad and for that we just need a battery and one LED light. Here, one side touches to battery other side touches the wire and if wire is okay, then current connects through and light will ON, that mean […]

Filed Under: DIY Projects, Hobby Circuits, Meters and Testers

Simple Piezo Buzzer Circuit

Last updated on 30 April 2026 by Admin-Lavi Leave a Comment

This Simple Piezo Buzzer Circuit make sound in new way, as it is easy to make and need only few parts like: Also, to make high sound like a whistle, this circuit is special because coil makes the sound to keep going and is not like other circuit with resistor and capacitor only. What is […]

Filed Under: Alarm Circuits, Audio Circuits, DIY Projects, Indicator Circuits, Mini Projects

Sound Activated Relay Circuit

Last updated on 29 April 2026 by Admin-Lavi Leave a Comment

This article show how to make one Sound Activated Relay Circuit, which uses sound for turning device ON and OFF. Also, relays are special parts and they control big power things like lights and motors. Here are some ways to use it: Furthermore, this article tell us how to build and use this type of […]

Filed Under: DIY Projects, Hobby Circuits, Sensors and Detectors

LED Chaser Circuit using IC 4017

Last updated on 29 April 2026 by Admin-Lavi Leave a Comment

This LED Chaser Circuit using IC 4017 project make LED lights turn ON one by one like chasing, also it is fun way to learn electronics. In addition, one chip of IC 555 makes pulse again and again and that pulse connects to other chip IC 4017 and it turn ON and OFF each pin […]

Filed Under: 555 Timer Projects, DIY Projects, Hobby Circuits, LED and Lamps

Simple Temperature Indicator Circuit using a Single Transistor

Last updated on 29 April 2026 by Admin-Lavi Leave a Comment

To make a Simple Temperature Indicator Circuit using a Single Transistor is not so hard like people think. Furthermore, this article makes understand, how anyone can build this easy circuit using one diode, one transistor and some other small parts. What is a Temperature Indicator Circuit using a Single Transistor: Firstly, using one transistor, temperature […]

Filed Under: DIY Projects, Heater and Temperature Controllers, Indicator Circuits, Mini Projects, Sensors and Detectors, Transistor Circuits

  • « Go to Previous Page
  • Page 1
  • Page 2
  • Page 3
  • Page 4
  • Page 5
  • Page 6
  • Interim pages omitted …
  • Page 8
  • Go to Next Page »

Primary Sidebar




Categories

  • 555 Timer Projects (20)
  • Alarm Circuits (58)
  • Amplifier Circuits (80)
  • Arduino Projects (102)
  • Audio Circuits (144)
  • Automation Circuits (5)
  • Automobile Circuits (22)
  • Battery Charger Circuits (75)
  • DIY Projects (47)
  • Free Energy (13)
  • Heater and Temperature Controllers (21)
  • High Voltage (12)
  • Hobby Circuits (9)
  • Indicator Circuits (57)
  • Inverter Circuits (19)
  • IoT projects (1)
  • LDR Circuits (34)
  • LED and Lamps (174)
  • Meters and Testers (35)
  • Mini Projects (32)
  • Motor Controllers (22)
  • Oscillator Circuits (48)
  • Power Supply Circuits (180)
  • Remote Control Circuits (9)
  • Security and Protection (45)
  • Sensors and Detectors (159)
  • Solar Circuits (32)
  • Timer Circuits (48)
  • Transistor Circuits (136)
  • Transmitter Circuit (18)
  • Tutorials (8)
  • Voltage Regulator (1)
  • Water Level Controller (7)

Recent Posts

  • Simple High Impedance JFET Preamp Circuit
  • Low Noise Transistor Preamplifier Circuit
  • Transistor Based Medium Impedance Preamplifier Circuit
  • Low Cost DIY Microphone Circuit using Normal Speaker
  • Low Impedance Input Transistor Preamplifier Circuit

Recent Comments

  1. Transistor Based Medium Impedance Preamplifier Circuit - Circuit Ideas for You on Low Impedance Input Transistor Preamplifier Circuit
  2. Admin-Lavi on Alternate Red Green LED Flasher Circuit
  3. Admin-Lavi on Alternate Red Green LED Flasher Circuit
  4. Mike on Alternate Red Green LED Flasher Circuit
  5. angel on 12 Watts Amplifier Circuit using Transistors

Copyright © 2026 | New Circuit Ideas