Switched ON Bike Lamp

55 years ago
circuit schematic

Do you have a bicycle..? why don't try to build this circuit..?. Powered using battery 3-6V. This circuit will help…

3A Switching Power Supply Regulator

55 years ago

This is the circuit diagram of 3A switching power supply regulator: Simple and cheap, the circuit built based on well-known…

Remote Control Tester

55 years ago

Here is the remote control tester circuit. This circuit is really a simple and easy tester for verifying the basic…

Current Output Multiplier for 78xx Regulator

55 years ago

This is the circuit diagram of current output multiplier designed for regulator IC LM78xx. By default, the regulator ID 78xx…

4 Transistor FM Tracking Transmitter

55 years ago

The following diagram is the FM tracking transmitter based on 4 transistors. No additional notes for this tracking transmitter diagram,…

White Line Follower

55 years ago

This is the circuit diagram of white line follower toy. The actuator of the toy is the DC motor. This…

20W Power Tube Amplifier with EL34

55 years ago

The following diagram is the circuit diagram of 20W power amplifier which build based tube component EL34. EL34 is very…

Tube Head Pre-amp

55 years ago

This is a simple and low cost Tube Head Vacuum Tube pre-amp circuit designed bu PAiA electronics: Vcc - Pin…

Orange 125MK3 Guitar Mods

55 years ago

This document contains schematic diagram of Orange 125MK3 including the guitar preamp section, feedback and power amplifier section. Preview: (more…)

Cut Phone Line Detector

55 years ago

This cut phone line detector circuit is used to detect whether your phone line is active or not. Components List:…