250mW RF Power Amplifier

This is an 250mW RF power amplifier circuit project. This circuit is designed to amplify the output of about 7mW…

55 years ago

220V Light Dimmer

This simple 220V light dimmer circuit can be used to adjust the brightness of mains lights. It also can be…

55 years ago

Sound Activated Switch

This is a sound activated switch circuit. It's will turn on and turn off based on a loud sound such…

55 years ago

20W Bridge Amplifier using TDA7240A

This is a simple 20W bridge amplifier based on TDA7240A. This circuit is designed for car audio system, but you…

55 years ago

2 x 70W Power Stereo Amplifier based on IC STA550

Here's the circuit diagram of a 70W stereo power amplifier which built using single power IC STA550. The circuit is…

55 years ago

220V LED Flasher

This is a 220V LED flasher circuit which is intended as a reliable replacement to thermally-activated switches used for Christmas…

55 years ago

80W Audio Amplifier Using TDA7295

Below is a 80W audio amplifier circuit is constructed by using a power IC TDA7295. With a very simple design,…

55 years ago

Nokia Cell Phone

This is the Nokia cellphone wiring diagram collection. Fixing a cell phone is basically not a difficult thing. All you…

55 years ago

TDA7381 4 x 25W Quad Audio Amplifier

The following is 4 x 25W quad audio amplifier circuit (amplifier with four inputs and four outputs) based TDA7381. This…

55 years ago