DC Motor Speed Controller Using 2SC2625 Power Transistor
What is a DC Motor Speed Controller? A wide variety of different methods can be employed to achieve … Read more
Syed Saad Hasan
An Introduction To Aluminum Clad PCB: What is it & Why do we need it?
The use of metal clads and cores in PCB manufacturing has seen a certain uprise in the past … Read more
Joule Thief Voltage Booster Using a Transistor & a Toroidal Transformer
What is a Joule Thief Voltage Booster? A Joule thief voltage booster is a circuit that translates a … Read more
1.3V Power Supply Using 5V DC Input
A 1.3V power supply usually acts as a replacement power for mercury cells & other small DC batteries. … Read more
On Delay Timer Circuit using Three 2N3904 NPN Transistors
An ON Delay Timer Circuit is a simple electronic circuit, which often serves to initiate time delays in … Read more
Power Failure Emergency Lamp Circuit Using PNP Transistors
A Power failure emergency lamp is a common electronic device, usually served in day-to-day households. They provide an … Read more
Lamp Flasher Circuit Using Transistors – DIY Project
A Lamp flasher circuit is perhaps, the simplest way for electronics to say ‘HELLO WORLD’ to us. It … Read more
Low Voltage 12V Relay Driver Using LMC 555 Timer IC
Driving a 12V relay with a 3V supply is a common engineering practice. It is usually seen in … Read more
±12V Dual Power Supply Using Zener Diodes – DIY
±12V Dual Power Supply is essential for electronic hobbyists & technologists nowadays. They provide a simple, easy & … Read more
12V Regulated Power Supply Using LM2940T IC
A 12V Regulated power supply is an integral part of any DC supply unit used in electronic equipment. … Read more
9V Dual Power Supply Using Zener Diodes
9V Dual Power Supply is essential for electronic hobbyists & technologists nowadays. They provide a simple, easy & … Read more
3V 1A DC Supply Using BD135/139 NPN Transistor
A 3V 1A DC supply is an important power supply unit (PSU) in use for academic as well … Read more
Melody Generator Using UM66 IC With TDA2822M Amplifier
A Melody Generator is a common electronic circuit that acts as a melody-producing tool in various devices such … Read more
9V/5A Regulated Power Supply Using LM7809 Voltage Regulator
9V/5A regulated Power Supply units (PSU) are a common but important part of everyday electronics. They commonly serve … Read more
LED Sequencer Circuit Using BC239 NPN Transistors
A LED sequencer circuit or a ring counter is generally constructed by combining a clock pulse with a … Read more
Wireless Speaker Audio Amplifier Using 2SC2625 Power Transistor
From providing a bass its satisfying crunch to boosting signals in ham radios so that the broadcasts can … Read more
