• 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 » Mini Projects » Page 6

Mini Projects

Simple Transistor Relay Driver Circuit

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

Small switch we call transistor is inside almost all electronic thing, but transistor cannot handle big power by itself. So we have used Simple Transistor Relay Driver Circuit which is like a special adapter for transistor and this help small signal from transistor to control big relay switch. Also, with this we can turn ON […]

Filed Under: Mini Projects, Transistor Circuits, Tutorials

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

Simple Current Limiter Circuit using Transistors

Last updated on 28 April 2026 by Admin-Lavi Leave a Comment

To begin with, this Simple Current Limiter Circuit using Transistors gives tutorial to show how to make a circuit that stop giving too much power to other electronics. Also, it helps to protect from overload by using two transistors and one special resistor. What is a Current Limiter Circuit using Transistors: A transistor current limiter […]

Filed Under: DIY Projects, Mini Projects, Power Supply Circuits, Security and Protection, Transistor Circuits

Simple Voltage Regulator Circuit using Transistor and Zener

Last updated on 28 April 2026 by Admin-Lavi Leave a Comment

This Simple Voltage Regulator Circuit using Transistor and Zener work like bodyguard for electricity, because it uses one transistor like door keeper and one special Zener diode to keep voltage not going up-down. Furthermore, the Zener diode gives fixed voltage and transistor follow that voltage to keep same for our device. Also, this project is […]

Filed Under: DIY Projects, Mini Projects, Power Supply Circuits, Transistor Circuits

Simple Single Transistor LED Flasher Circuit

Last updated on 28 April 2026 by Admin-Lavi Leave a Comment

To begin with, this Simple Single Transistor LED Flasher Circuit show smallest LED flasher circuit ever made, here the LED blink ON and OFF again and again by using only one transistor, one resistor and one capacitor. Now, just think of only one transistor and some easy parts and LED will start flashing, look nice! […]

Filed Under: DIY Projects, LED and Lamps, Mini Projects, Transistor Circuits

Simple LED Flashlight Circuit (Torch Circuit)

Last updated on 28 April 2026 by Admin-Lavi Leave a Comment

This Simple LED Flashlight Circuit (Torch Circuit) is an easy circuit for beginner, it uses white LED, small battery and one push button. Further, when we press the push button, the LED produces bright light. The circuit also, uses only 3 volt and small current of about 20 mA to give light at night, hence […]

Filed Under: DIY Projects, LED and Lamps, Mini Projects

  • « Go to Previous Page
  • Page 1
  • Interim pages omitted …
  • Page 4
  • Page 5
  • Page 6
  • Page 7
  • Page 8
  • Page 9
  • Go to Next Page »

Primary Sidebar




Categories

  • 555 Timer Projects (24)
  • Alarm Circuits (59)
  • Amplifier Circuits (85)
  • Arduino Projects (102)
  • Audio Circuits (152)
  • Automation Circuits (9)
  • Automobile Circuits (22)
  • Battery Charger Circuits (75)
  • DIY Projects (73)
  • Free Energy (13)
  • Heater and Temperature Controllers (21)
  • High Voltage (18)
  • Hobby Circuits (26)
  • Indicator Circuits (58)
  • Inverter Circuits (19)
  • IoT projects (1)
  • LDR Circuits (34)
  • LED and Lamps (175)
  • Meters and Testers (35)
  • Mini Projects (49)
  • Motor Controllers (22)
  • Oscillator Circuits (48)
  • Power Supply Circuits (185)
  • Remote Control Circuits (9)
  • Security and Protection (48)
  • Sensors and Detectors (162)
  • Solar Circuits (32)
  • Timer Circuits (50)
  • Transistor Circuits (136)
  • Transmitter Circuit (18)
  • Tutorials (8)
  • Voltage Regulator (2)
  • Water Level Controller (7)

Recent Posts

  • Simple LM324 Microphone Amplifier Circuit
  • Transistor Based Video Amplifier Circuit
  • DIY 20W OCL Audio Amplifier Circuit
  • Simple High Impedance JFET Preamp Circuit
  • Low Noise 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