Welcome to cxem.net. This site include different electronic circuits and articles. On this site you can find have more than 1000 electrical circuits and articles. Here you can find useful circuits with full description, diagrams and PCB, electronics articles, links and downloads.
The basic categories of this site:
FM Transmitters - the most popular section on this site. AM-FM transmitters, wireless microphones, spy-devices, telephone bugs and more.
Audio Amplifiers - schematics of Power Amplifiers, Tube Amplifiers and Car Amplifiers.
Computer electronics - pinouts, connectors, interfases, cables, computer devices. Modding.
Electronics for home living - Alarms, Time Delay Relay, Light controls, Motor controls, Volume controls and other.
Guard and Security shematics - Alarms, Noise Detectors, Radars.
Mobile electronics - Pinouts for cell phones, Data/flash cables schematics.
RF Circuits - Video signal amplifiers, RF amplifiers, AM Receivers, GPS.
Infrared circuits - Infrared technology: Remote Controls, IR transmitters, IR receivers.
Measured Circuits - Testers, Spectrum Analyzer, Voltmeter, Generators, Capacitance and Resistance Meters and other.
Power Circuits - Power Supplies, Voltage Inverters, Battery Charger, Pinouts and cables for UPS.
Telephone Electronics and Phreaking - Calling Detector, Telephone amplifier, Busy Indicator, Intercom and other
Electronics for Beginners - Electronics Learning for Beginners, Theory of Electronics
Post any questions on the community forum.