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LED Sequencer

Textbook

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

Rectifier Circuits

Worksheets - Residential

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

AC Motor Theory

Worksheets - Residential

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

Thyristors

Worksheets - Residential

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

Static Electricity

Worksheets - Residential

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

Simple Circuits

Worksheets - Residential

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

CMOS 555 Long Duration Flyback LED Flasher

Textbook

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

Convert MCD to Lumens

Tools

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

Series-Parallel DC Circuits

Worksheets - Residential

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

Series LED Resistor Calculator

Tools

This series LED resistance calculator is perfect for when you have a single LED or a number of the same color of LEDs in series and need to know which resistor you should use.

Design Project: LED Stroboscope

Worksheets - Residential

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

Digital Display Circuits

Worksheets - Residential

What is the purpose of a seven-segment decoder circuit? What is a…

Switches

Worksheets - Residential

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

Circuits and the Speed of Light

Textbook

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

Current Divider Circuits

Worksheets - Residential

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

CMOS 555 Long Duration Blue LED Flasher

Textbook

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

Thyristor Application Circuits

Worksheets - Residential

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

CMOS 555 Long Duration Minimum Parts Red LED Flasher

Textbook

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

Pulsed-light Sensor

Textbook

PARTS AND MATERIALS Two 6-volt batteries One NPN…

Light-Pulse Switch

Worksheets - Residential

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

Thevenin-Norton Equivalencies

Textbook

Since Thevenin’s and Norton’s Theorems are two equally…

Design Project: Voltmeter

Worksheets - Residential

The most important component of your voltmeter will be the…

Sensitive Voltage Detector

Textbook

PARTS AND MATERIALS High-quality “closed-cup” audio…

Logarithms

Textbook

Definition of a Logarithm     “log” denotes a…

Octal and Hexadecimal to Decimal Conversion

Textbook

Although the prime intent of octal and hexadecimal numeration systems…

High-Reliability Circuits

Worksheets - Residential

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

Voltage Comparator

Textbook

Parts and Materials Operational amplifier, model 1458 or 353…

Wire Types and Sizes

Worksheets - Residential

Most electrical wire is covered in a rubber or plastic coating called…

The Silicon-Controlled Rectifier (SCR)

Textbook

Shockley Diodes and Silicon Controlled Rectifiers (SCRs) Shockley…

Special-purpose Diodes

Textbook

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

Temperature Coefficients of Resistance Table

Textbook

Temperature coefficient (α) per degree C: Material Element/Alloy…

Full-wave Center-tap Rectifier

Textbook

PARTS AND MATERIALS Low-voltage AC power supply (6-volt output) Two…

Design Project: Event Counter

Worksheets - Residential

If your event sensing switch is mechanical in nature, you will likely…

Microstrip Max Current Calculator

Tools

A calculator for solving the maximum current a microstrip can handle.

555 Audio Oscillator

Textbook

PARTS AND MATERIALS Two 6 volt batteries One capacitor, 0.1 µF,…

Electrical Connections

Worksheets - Residential

What, exactly, is necessary to establish electrical continuity between…

Phasing

Textbook

Since transformers are essentially AC devices, we need to be aware of…

Diodes

Textbook

A diode is an electronics component made from a combination of a…

Passive Integrator and Differentiator Circuits

Worksheets - Residential

∫f(x) dx Calculus alert! Calculus is a branch of mathematics that…

Current Divider Circuits

Worksheets - Residential

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