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Electronic circuits categories
Audio
Audio amplifiers, preamplifiers, volume control and more...
Video & TV
Electronic devices for TV and video
Power
Power Supplies, Ni -Cd Batteries Charger, Voltage Inverter and others..
RF
FM and AM radio, FM Transmitter, Powerful AM transmitter and other RF circuits
Digital
Card programmers, adapters and other circuits with microcontrollers
Computer
PC based Frequency Meter, The Simplified I/O Interface, VGA to TV Scart...
Telephone
Telephone amplifier, Smart Phone light, Conversation Recorder, Simple Phone Tap...
Measurement
Digital Voltmeter, Capacitance Meter, IR Remote Control Tester, Transistor Tester...
Security
Fire Alarm, Metal Detector, Police Siren, UltraSonic Radar, Door Alarm...
Lights & LED
Lights & LED circuits
Oscillators
Voltage Controlled Oscillators, Waveform Generators and others oscillators and generators
Op Amplifiers
Operational amplifier circuits and applications.
Other
Schemstics that not included in other categories