Do you have a bicycle..? why don’t try to build this circuit..?. Powered using battery 3-6V. This circuit will help the bicycle driver in the night and help other people to know your presence. Switched ON […]
Circuit Schematic Diagram
3A Switching Power Supply Regulator
This is the circuit diagram of 3A switching power supply regulator: Simple and cheap, the circuit built based on well-known IC regulator LM317 with current booster of power transistor 2N3782. Don’t forget to add heatsink especially […]
Remote Control Tester
Here is the remote control tester circuit. This circuit is really a simple and easy tester for verifying the basic operations of an infrared remote control unit. It is low-cost and very easy to construct. The […]
Current Output Multiplier for 78xx Regulator
This is the circuit diagram of current output multiplier designed for regulator IC LM78xx. By default, the regulator ID 78xx series will give maximum current output 1A – 1.5A. To increase the current output of this […]
4 Transistor FM Tracking Transmitter
The following diagram is the FM tracking transmitter based on 4 transistors. No additional notes for this tracking transmitter diagram, try to discover this circuit by yourself.. 🙂 Components list: R1 = 100K Ohms R2 = […]
White Line Follower
This is the circuit diagram of white line follower toy. The actuator of the toy is the DC motor. This circuit can be used for?a toy car to follow a white?line, this circuit also known as […]
20W Power Tube Amplifier with EL34
The following diagram is the circuit diagram of 20W power amplifier which build based tube component EL34. EL34 is very famous tube and great for power tube amplifier. The circuit above is complete circuit contains tube […]
Tube Head Pre-amp
This is a simple and low cost Tube Head Vacuum Tube pre-amp circuit designed bu PAiA electronics: Vcc – Pin 1 IC1 +12v – Pin 8 IC2, IC3, IC4 -12v – Pin 4 IC2, IC3, IC4 […]
Orange 125MK3 Guitar Mods
This document contains schematic diagram of Orange 125MK3 including the guitar preamp section, feedback and power amplifier section. Preview:
Cut Phone Line Detector
This cut phone line detector circuit is used to detect whether your phone line is active or not. Components List: R1,R2,R3 = 22M Ohms R4 = 2.2M Ohms C1 = 0.47uF/250V Mylar caps D1 = 1N914, […]