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Thyristors

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Don’t just sit there! Build something!! Learning to mathematically…

Design Project: LED Stroboscope

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A technician uses a stroboscope to “freeze” the rotation of a…

AC Motor Theory

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Electromechanical watt-hour meters use an aluminum disk that is spun…

Series-Parallel DC Circuits

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Don’t just sit there! Build something!! Learning to mathematically…

Light-Pulse Switch

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It is fairly important to use large value resistors (10 MΩ works…

Simple Circuits

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Shown here is the schematic symbol for a resistor: What is the purpose…

Circuits and the Speed of Light

Textbook

Suppose we had a simple one-battery, one-lamp circuit controlled by a…

Static Electricity

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What does it mean for an object to have an electric charge? Give an…

LED Resistor Calculator

Tools

An LED resistance calculator is perfect for when you have a single LED and need to know which resistor you should use.

Current Divider Circuits

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Don’t just sit there! Build something!! Learning to mathematically…

AC phase

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If we were to express the series-connected DC voltages as phasors…

Special-purpose Diodes

Textbook

Schottky diodes Schottky diodes are constructed of a metal-to-N…

CMOS 555 Long Duration Minimum Parts Red LED Flasher

Textbook

PARTS AND MATERIALS Two AAA Batteries Battery Clip (Radio Shack…

Thyristor Application Circuits

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Don’t just sit there! Build something!! Learning to mathematically…

Convert MCD to Lumens

Tools

This calculator is useful for calculating the luminous flux for LEDs where the angle is known.

Pulsed-light Sensor

Textbook

PARTS AND MATERIALS Two 6-volt batteries One NPN…

LED Sequencer

Textbook

PARTS AND MATERIALS 4017 decade counter/divider (Radio Shack catalog…

CMOS 555 Long Duration Flyback LED Flasher

Textbook

PARTS AND MATERIALS Two AAA Batteries Battery Clip (Radio Shack…

Switches

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What is the purpose of the switch shown in this schematic diagram?

Rectifier Circuits

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Don’t just sit there! Build something!! Learning to mathematically…

Voltage and Current in a Practical Circuit

Textbook

Because it takes energy to force charge to flow against the opposition…

Superposition Theorem

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Don’t just sit there! Build something!! Learning to mathematically…

Sources of Electricity

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What is the difference between DC and AC electricity? Identify some…

Pi-Match Impedance Matching Calculator

Tools

This calculator is designed to compute the parameters required to design a Pi-Match Impedance Circuit

Design Project: Signal Generator

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Explain the principle of operation for the particular integrated…

Twisted-Pair Impedance Calculator

Tools

A tool designed to calculate the characteristic impedance of a twisted-pair cable

Broadside Coupled Stripline Impedance Calculator

Tools

This calculator helps you compute the characteristic impedance of a broadside coupled stripline.

BJT Quirks

Textbook

An ideal transistor would show 0% distortion in amplifying a signal.…

A Very Simple Circuit

Textbook

Parts and Materials 6-volt battery 6-volt incandescent lamp Jumper…

Parallel Resistor-Inductor Circuits

Textbook

Let’s take the same components for our series example circuit…

Wiring Color Codes Infographic

Textbook

Wiring Color Codes Infographic. Released under the Creative Commons…

Commutating Diode

Textbook

PARTS AND MATERIALS 6 volt battery Power transformer, 120VAC step-down…

DC Bridge Circuits

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Don’t just sit there! Build something!! Learning to mathematically…

The Common-source Amplifier (JFET)

Textbook

RELATED WORKSHEETS: JFET Amplifiers Worksheet

Thermoelectricity

Textbook

PARTS AND MATERIALS Length of bare (uninsulated) copper wire Length of…

Switch Types

Textbook

Though it may seem strange to cover the elementary topic of electrical…

Circuits and the Speed of Light

Textbook

Suppose we had a simple one-battery, one-lamp circuit controlled by a…

Metric Prefixes and Unit Conversions

Textbook

Metric Prefixes   Yotta = 1024 Symbol: Y Zetta = 1021 Symbol: Z…

Trigonometry for AC Circuits

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Identify which trigonometric functions (sine, cosine, or tangent) are…

Analog and Digital Signals

Textbook

Instrumentation is a field of study and work centering on measurement…

Safe Practices

Textbook

If at all possible, shut off the power to a circuit before performing…

Mesh Current Method and Analysis

Textbook

The Mesh-Current Method, also known as the Loop Current Method, is…

How to Use an Ammeter to Measure Current

Textbook

Parts and Materials   6-volt battery   6-volt incandescent…

Electromagnetic Induction Experiment

Textbook

PARTS AND MATERIALS Electromagnet from previous experiment Permanent…

Inverting Op-Amp Resistor Calculator

Tools

This calculator determines the bias and feedback of resistors for an inverting op-amp.

Capacitance, Reactance, and Admittance Calculator

Tools

A calculator for solving the capacitance, reactance, and admittance of a capacitor.

Hand Calculator Use

Textbook

To enter numbers in scientific notation into a hand calculator, there…

Contributors (16)

Textbook

Contributors to this chapter are listed in chronological order of…

CMOS 555 Long Duration Red LED Flasher

Textbook

PARTS AND MATERIALS Two AAA Batteries Battery Clip (Radio Shack…

Contributors (15)

Textbook

Contributors to this chapter are listed in chronological order of…

Operational Amplifier Models

Textbook

While mention of operational amplifiers typically provokes visions of…

Tank Circuit Resonance Calculator

Tools

This calculator computes the resonant frequency of a tank circuit

Miscellaneous Diode Applications

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Don’t just sit there! Build something!! Learning to mathematically…

Specific Troubleshooting Techniques

Textbook

After applying some of the general troubleshooting tips to narrow the…

Series and Parallel AC Circuits

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Don’t just sit there! Build something!! Learning to mathematically…

Resistors

Textbook

Because the relationship between voltage, current, and resistance in…

Diode Switching Circuits

Textbook

Diodes can perform switching and digital logic operations. Forward and…

Oscilloscope Trigger Controls

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A very useful tool for observing rotating objects is a strobe light.…

Decimal versus Binary Numeration

Textbook

Let’s count from zero to twenty using four different kinds of…

Rheostat Range Limiting

Textbook

PARTS AND MATERIALS Several 10 kΩ resistors One 10 kΩ…