Electronic circuits categories
AudioAudio amplifiers, preamplifiers, volume control and more...
Video & TVElectronic devices for TV and video
PowerPower Supplies, Ni -Cd Batteries Charger, Voltage Inverter and others..
RFFM and AM radio, FM Transmitter, Powerful AM transmitter and other RF circuits
DigitalCard programmers, adapters and other circuits with microcontrollers
ComputerPC based Frequency Meter, The Simplified I/O Interface, VGA to TV Scart...
TelephoneTelephone amplifier, Smart Phone light, Conversation Recorder, Simple Phone Tap...
MeasurementDigital Voltmeter, Capacitance Meter, IR Remote Control Tester, Transistor Tester...
SecurityFire Alarm, Metal Detector, Police Siren, UltraSonic Radar, Door Alarm...
Lights & LEDLights & LED circuits
OscillatorsVoltage Controlled Oscillators, Waveform Generators and others oscillators and generators
Op AmplifiersOperational amplifier circuits and applications.
OtherSchemstics that not included in other categories
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Four channel RF remote control 14 Watt Compact Fluorescent Electronic Ballast Transmit Infrared Signals Through Walls Non-Inverting Amplifier Precision Current Source AV (Audio/Video) Wireless Transmitter Simple receiver with microvolt sensitivity Triangle-Wave Generator Simple FM Radio with improved audio gain Sine Wave Oscillator