Variable Power Supply Using LM723

Dual Regulated Power Supply

In this circuit, the 7815 regulatates the positive supply, and the 7915 regulates the negative supply. The transformer should have a primary... Baca selengkapnya »

Portable CD Player Adapter For Car

Whenever I'm in the car listening to my favourite CD, it always happens; my batteries go dead. To solve that problem, I built this extre... Baca selengkapnya »

Batteries Charger & PSU - Ideal for Digital Cameras

This circuit was created for digital cameras. It's known the digital cameras have considerable power consumption. For example my camera ... Baca selengkapnya »

Telephone Tapping Indicator

This simple circuit can indicate a misuse or tapping of Telephone line through a loud alarm. The circuit is too simple and can be easily ass... Baca selengkapnya »

Automatic Load Sensing Power Switch

This circuit will automatically switch on several mains-powered "slave" loads when a "master" load is turned on. For exa... Baca selengkapnya »

7 Watt Audio Amplifier Using TDA2003

Amplifier Circuits Diagram Schematic diagram of a simple 7 watt audio amplifier using TDA2003 Amplifier IC. This is a good IC with man... Baca selengkapnya »