eletrônicos e circuitos eletrônicos grátis

AC Power Controls Amplifiers Anemometer Circuits AC to AC Converters Audio Annunciator Circuits AC to AC Power Supplies Buffer Antenna Circuits AC to DC Converters Differential Applause Meter AC to DC Power Supplies High Frequency Aquarium Circuits Acceleration Sensors / Monitors High Gain Astable Circuits Acoustic Circuits High Impedance Attenuators Active Antenna High Speed Audio Amplifiers Active Filters IF (Intermediate Frequency) Audio Circuits Band-pass Instrumentation Accessories High-pass Limiting Intercom Low-pass Logarithmic Level, Tone & Balance Notch Low Noise Mixers Acquistions Data Circuits Microwave Power Amplifiers Adder Circuits Operational Preamplifiers Air Conditioner (HVAC) Circuits Power Stereo Air Flow Monitors RF (Radio Frequency) Surround Sound Air Pollution / Quality Monitor Transimpedance Audio Mixers Aircraft Receivers Variable Gain Audio Oscillator Circuits Alarm Circuits Video Automatic Frequency Controls AM (Amplitude Modulation) Circuits Amplitude Modulation (AM) Circuits Automatic Gain Control (AGC) Circuits AM Receiver Circuits Analog to Digital (A / D) Circuits Automatic Level Control Circuits AM Transmitter Circuits Analog Multipliers Automotive Circuits Amp Meters Analog Switches

Balance Controls Beeper & Buzzer Circuits Buffer Circuits Band-Pass Filters – Active Blinkers Buck / Boost Power Supplies Band-Pass Filters – Passive Biomedical Circuits Buck /Step Down Power Supplies Battery Backup Circuits Bistable Multivibrators Bug “Electronic” & Detectors Battery Chargers Blinking Lights Bug / Insect Killers Battery Monitors Boost / Step Up Power Supplies Burglar Circuits Battery Testers Bridge Circuits Buzzer Circuits Barometer (Atmospheric Pressure Broken Pipe Alarm BTU Meters

Camera Circuits Conductivity Sensors Converters – Continued Camera Flashers Constant Current Circuits Voltage to Current Capacitance Sensors Contact Bounce Suppression Circuits Voltage to Frequency Capacitance Switches Control Circuits Wide Band Capacitors (Super) Circuits Converters: Cooling Fan Controls Carrier Current Transceivers AC to AC Cosine Cathode-Ray Circuits AC to DC Counters and Timer Circuits Cell Phones Analog to Digital (ADC) Crystal Filters Charge Pump Circuits Current to Voltage Crystal Oscillators Chopper Circuits DC to AC Cube Root Clock Circuits DC to DC Current Limiters Code Practice Circuits Digital to Analog (DAC) Current Loop Circuits Color Organ Circuits Frequency Current Meters Colpits Oscillators Frequency to Voltage Current Mirrors Combustible Gas Detectors Period to Frequency Current Sensors / Monitors Compandor Circuits Period to Voltage Current Source / Sink Circuits Comparator Circuits RF (Radio Frequency) Current to Voltage Converters Computer Cables Sine to Square Wave Computer Interface Voltage

DC to AC Converters Demodulators Digital to Analog (D / A) Converters DC to AC Power Supplies Detectors (see Sensors / Detectors) Dimmer Circuits DC to DC Converters Dew Point Meters Direction Finder Circuits DC to DC Power Supplies Dew Monitors Discriminator Circuits Data Acquisition Circuits Differential Amplifier Circuits Display Circuits Data Communication Bus Difference Amplifier Circuits Distance Monitors Data Logging Circuits Differentiator Circuits Divider Circuits Decibel Meter Digital Adders Doorbell Circuits Decoder Circuits Digital Circuits Driver Circuits Delay Circuits Digital Readouts DTMF (Dual Tone Multi Frequency)

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Electric Fence Electronic Bugs & Detectors Emergency Light Circuits Electronic Compass Circuits Electronic Locks Emulator Circuits Encoder Circuits

FAX Circuits Flow Detector/ Meters Frequency Counters FET Circuits Fluid Level Monitors Frequency Divider Circuits Fiber Optic Circuits Fluorescent Lamp Circuits Frequency Doublers Field Strength Meters FM (Frequency Modulation) Circuits Frequency Modulator (FM) Circuits Filter Circuits – Active FM Receiver Circuits Frequency Meters / Monitors Filter Circuits – Passive FM Transmitter Circuits Frequency Multipliers Fire Alarm Circuits Follower (Voltage) Circuits Frequency Shift (FSK) Circuits Fire / Flame Detectors Four-quadrant Multiplier Circuits Frequency Synthesizer Circuits Flashers and Blinkers Freespace Communications Frequency to Voltage Converters Flip / Flop Circuits Freezer Alarm Frost / Freeze Alarm Flyback Circuits Frequency Converters Function Generators

Gadget Circuits Geiger Counter Circuits Ground-Fault Interrupter (GFI) Game Circuits Geophone Circuits Gyrator Circuits Gas Detectors GPS (Global Positioning Systems) Gyroscope Circuits Gate Arrays Ground Current Monitors

H-Bridge Circuits High-Pass Filters – Active Horse Power Meters Hall Effect Circuits High-Pass Filters – Passive Hour Meters Hartley Oscillator High Speed / Frequency Circuits Human Motion Detectors Headphones NEW High Voltage Generators Human Proximity Detectors High Gain Amplifiers High Voltage Monitors Human Touch Detectors High Impedance Circuits Holiday Circuits Humidity Sensors and Monitors

Indicator Circuits Instruments Interface Circuits Infrared Circuits Instrumentation Amplifiers Intermediate Frequency (IF) Circuits Infrasonic Circuits Integrator Circuits Inverter Circuits Intercom Circuits Ion Generator Circuits

Jacob’s Ladder Circuits Keypad Circuits Joysticks Joule (Energy) Meters

Ladder Networks Light Dimmers Liquid Level Monitors Lamp / Light Control Circuits Light Dependent Resistor Circuits Lock Circuits Laser Circuits Light Detectors Logarithmic Circuits Latch Circuits Light Flashers Logic Circuits Lawn Moisture Monitor Light-Beam Communications Low Noise Amplifiers LCD (Liquid Crystal Display) Limiter Circuits Low-Pass Filters – Active LED (Light Emitting Diodes) Circuits Limiting Amplifiers Low-Pass Filters – Passive LED – White NEW Liquid Crystal Displays (LCD) Low Power Circuits Level, Tone and Balance Controls Liquid Detectors / Sensors LVDT (Linear Variable Differential Transformer) Lie Detector Circuits

Magnetic Sensors Microamp Meters Modem Circuits Math Functions Microphone Circuits Modulator Circuits Cosine Micro Power Circuits Moisture Monitors Cube Root Microprocessor Circuits Monostable Integrators Microwave Amplifiers Morse-Code Circuits Differentiator Microwave Detectors MOSFET Circuits Log Milliamp Meters Motion Sensor Square Root Millivolt Meters Motor Controls Medical Electronics Circuits Miscellaneous Circuits Mouse Circuits Megaohm Meters Mixer Circuits Multiplexers Memory Circuits Model Circuits Multimeter Circuits Metal Detectors Model Airplane Circuits Multivibrator Circuits Metronomes Model Train Circuits Musical Circuits

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Noise Generator Noise Reduction Filters Notch Filters – Active Notch Filters – Passive

One Shot Circuits Oscilloscope Circuits Oscillator Circuits – Continued Opacity Circuits Oscillator Circuits RF Operational Amplifier Circuits Astable Sine wave Optic Circuits Audio Square wave Optical Fiber Circuits Colpits Triangle wave Optical Sensors Crystal Variable-Frequency NEW Opto Coupler Circuits Hartley Voltage controlled Opto-Isolator Couplers Pierce Wien bridge

PA (Public Address) Circuits Photoelectric Circuits Power Supplies – Continued PDA Circuits Photo-Flash Circuits High Voltage PLL (Phase Locked Loop) Circuits Photography Circuits Low Voltage Drop PWM (PulseWidth Modulation) Photovoltaic Circuits Switchmode Particle Detector Pierce Oscillators UPS Passive Filters Piezoelectric Circuits Variable Band-pass Pink Noise Generator Circuits Preamplifiers Crystal Position Monitors Pressure Sensors High-pass Potentiometer Circuits Probe Circuits Low-pass Power Amplifiers Programmable Gain Amplifiers Notch Power Control Circuits Programmable Device Codes Passive Infrared Circuits Power Failure Alarm Programmable Unijunction Transistor Peak Detectors Power FET Circuits PROJECTS TO BUILD Pedometers Power Line Circuits (PUT) Circuits Period to Voltage Converter Power Meters / Monitors Protection Circuits Pest Control Circuits Power Supplies Proximity Circuits Phase Detector AC to AC Public Address (PA) Circuits Phase Locked Loop (PPL) Circuits AC to DC Pulse Generator Phase Modulation (PM) Circuits DC to AC Pulse Width Modulation (PWM) Phase Shifting Keying (PSK) DC to DC Push-Pull Circuits Photo Cell Circuits

Quadraphonic Circuits Quadrature Detectors

RFID Circuits RMS (Root Mean Square) Meters Reference Circuits RF (Radio Frequency Mixers Radar Circuits Regulated Power Supply Circuits RF (Radio Frequency Oscillators Radar Detectors Regulator Circuits RF (Radio Frequency) Receivers Radiation Detectors / Monitors Relay Circuits RF (Radio Frequency) Transmitters Radio Control Circuits Remote Control Circuits RFID Circuits Radio Frequency ID Devices Resistance Meters Root Mean Squaren (RMS) Meters Rain Detector Revolutions Per Minute Monitors Robot Circuits Ramp Generators RF (Radio Frequency) Circuits Rocket Circuits Receiver Circuits RF (Radio Frequency) Amplifiers Rotation Monitors Rectifier Circuits RF (Radio Frequency) Converters RPM Monitors RF (Radio Frequency) Detectors

Safety Circuits Sensor / Detectors – Continued Sample and Hold Circuits Moisture / Water Siren Circuits Sampling Circuits Motion Smoke Detector Sawtooth Generator Peak Snow Detector Scanner Circuits Phase Snow Level Monitor Schmitt Trigger Position Solar Cell Circuits SCR Circuits Pressure Solar Energy Monitors Silicon controlled Rectifier Circuits Proximity Solenoid Circuits Security Circuits Radar Solid State Relays Seismic Monitors Radiation Sound Effect Circuits Sensors / Detectors Resistance Sound Level Monitors Accelerations RF (Radio Frequency) Sound Synthesizer Air Flow Rotation Sound Operated Circuits Air Quality Seismic SPICE Automotive Solar Energy Sprinkler Controls Biomedical Smoke Square Wave Generators Capacitance Speed Square Wave Oscillators Conductivity Temperature Squelch Circuits Current Vacuum Strain Gauge Circuits Dew Vibration Staircase Generators Distance Voltage Step Down Power Supplies Flame Water / Moisture Step Up Power Supplies Flow Wind Speed Stepper Motor Circuits Frequency Servo Circuits Stereo Circuits Gas Shaft Encoders Strobe Circuits Human Motion Shunt Regulators Super Capacitor Circuits Human Proximity Sine to Square Wave Converters Surround Sound Circuits Human Touch Silicon Controlled Rectifier Sweep Circuits Humidity Sine-Wave Generators Swimming Pool Alarm Light Sine Wave Oscillators Switch Circuits Liquid Signal Adders Switch Mode Power Supplies Magnetic Signal Generators Switching Regulators Metal Signal Injectors Sync Circuits Microwave Single Sideband Circuits Synthesizer Circuits

T / R (Transmitter / Receiver) Switch Thermistor Circuits Transducer Circuits Tachometer Circuits Thermocouple Circuits Transformer Circuits Telemetry Circuits Thermometers Transimpedance Amplifiers Telephone Circuits Three Phase Circuits Transistor Circuits Telephone Ringers Tilt Meters Transmitter Circuits Television Circuits Time Delay Circuits Triac Circuits Television / VCR Remotes Timers and Counters Triangle Wave Generators Temperature Alarms Tone Controls Triangle Wave Oscillators Temperature Compensation Circuits Torque Circuits Triggering Circuits Temperature Control Circuits Touch Switch Circuits Transistor Transistor Logic Circuits Temperature Sensors Track and Hold Circuits TTL Circuits Tesla Coil Traffic Counter Tunnel Diode Circuits Testers Train (Model) Circuits TVS Theremin Circuits Transceiver Circuits TV / VCR Remotes Transient Voltage Suppressor (TVS)

UHF (Ultra High Frequency) Circuits Ultraviolet Lamp Circuits Uninterruptable Power Supplies Ultrasonic Circuits Under Voltage Monitors UPS Circuits Unijunction Transistor Circuits USB Interface Circuits

Vacuum Monitors Video Amplifiers Voltage Multipliers Vacuum Tube Circuits Video Circuits Voltage References Vapor Detector Video Decoder Circuits Voltage Regulators Variable Gain Amplifiers Video Encoder Circuits Voltage to Frequency Converters VCO Circuits Voltage Comparators Voltmeters Very High Frequency (VHF) Circuits Voltage Controlled Oscillator VHF (Very High Frequency) Circuits Vibration Monitors Voltage Converters VTVM Circuits Voltage Monitors VU (Volume Unit) Meters

Water Sensors Weather Instruments Wind Speed / Direction Monitor Water Level Monitors White LEDs NEW Window Comparator Circuits Watt Hour Meter Circuits White Noise Generators Wire Tracer Waveform Generators Wide Band Circuits Wireless Microphones Wave-Shaping Circuits Wien Bridge Oscillators Wireless Telephones