Passive Components

Resistor (R)

Capacitor (C)

Inductor (L)

Crystal Oscillators

Capacitance Equations

Inductance Equations

Reactance (X)

Impedance (Z)

Measuring Unknown R, L, C

Active Components

The p-n Junction

Junction Diode

The Diode Curve

Light-Emitting Diode (LED)

Zener Diode

Tunnel Diode

Bipolar Transistor

Transistor Vce-Ic Curves

Transistor Vcb-Ic Curves

JFET / MOSFET

Diac / SCR / Triac

555 Timer Articles and Circuits

Circuit Analysis Principles

Ohm's Law

Kirchoff's Current Law

Kirchoff's Voltage Law

Superposition Principle

Thevenin's Theorem

Norton's Theorem

Millman's Theorem

Digital Electronics

Resistor-Transistor Logic

Diode-Transistor Logic 

Transistor-Transistor Logic

Digital Logic Gates

Tri-state Output Circuit

TTL-to-CMOS Interfacing

CMOS-to-TTL Interfacing

Op Amp-Digital Interfacing

Opto-isolator Level-Shifting

Opto-Coupling Logic Gates

Driving Relays/LEDs

Boolean Algebra

de Morgan's Theorem

Analog Electronics

Transistor Configurations

The BJT as a Switch

BJT Switching Circuits

The Darlington Pair

What is an Amplifier?

Types of Amplifiers

Amplifier Classes

The Long-Tailed Pair

Negative Feedback

Resonance and Q Factor

Low-Pass Filters

High-Pass Filters

Band-Pass Filters

Band-Stop Filters

The Schmitt Trigger

Bridge Circuits

Basic Op Amp Internal Circuit

Power Supply Circuits

Power Supply # 1

Power Supply # 2

Regulated Power Supplies

Negative/Positive Supplies

Multiple +/- DC Supplies

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Audio / RF Circuits

Microphone Pre-Amplifier

LM380 Audio Amp Circuits

Simple Audio Amplifier

Simple Audio Mixer

Op Amp Low Pass Filter

Op Amp High Pass Filter

Tunable Band Pass Filter

Wien Bridge Notch Filter

Twin-T Notch Filter

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Timing / Waveform Generators

555 Astable Multivibrator

555 One-Shot Circuit

Punk Console

Warbler Siren

3-Mode Tone Generator

Electronic Toy Organ

Voltage-Controlled Oscillator

Multiple Waveform Generator

Variable Frequency Gen.

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Measurement Circuits

Op Amp 'Bar Graph' Voltmeter

3914 'Bar Graph' Voltmeter

Low-Voltage AC Voltmeter

Bridge Transducer In-Amp

Simple Frequency Meter

Sensing / Detection Circuits

Sound Detector

Light-Activated Alarm

Darkness-Activated Alarm

Water Level Sensor

Temperature Sensor

Fire Detection Circuit

Missing Pulse Detector

Peak Voltage Detector

Event Interruption Alarm

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Switching / Motor Circuits

Touch-Triggered Switch

DC Motor Driver # 1

DC Motor Driver # 2

Stepper Motor Driver

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Mathematical Function Circuits

Non-inverting Amplifier

Voltage Doubler

Voltage Squaring Circuit

Absolute Value Circuit

Differentiator Circuits

Integrator Circuits

Other Circuits

AC Lamp Flasher

Simple Logic Probe

Electronic Combination Lock

Sound-to-Dancing Lights Conv.

Op Amp Summer DAC

R-2R Ladder Network DAC

Clipper / Inverting Clipper

Ultrasonic Transmitter

Ultrasonic Receiver

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