Categories

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.

CMOS 555 Long Duration Flyback LED Flasher

Textbook

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

Rectifier Circuits

Worksheets - Lighting

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

AC Motor Theory

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

AC phase

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

Convert MCD to Lumens

Tools

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

Switches

Worksheets - Lighting

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

Pulsed-light Sensor

Textbook

PARTS AND MATERIALS Two 6-volt batteries One NPN…

Current Divider Circuits

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

LED Sequencer

Textbook

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

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…

Thyristor Application Circuits

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

Light-Pulse Switch

Worksheets - Lighting

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

CMOS 555 Long Duration Red LED Flasher

Textbook

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

Thyristors

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

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…

Digital Display Circuits

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

Design Project: LED Stroboscope

Worksheets - Lighting

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

AC Capacitor Circuits

Textbook

Capacitors Vs. Resistors Capacitors do not behave the same as…

Conductance

Textbook

When students first see the parallel resistance equation, the natural…

Printed Circuit Board Layout and Manufacture

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When a PCB designer speaks of dimensions in thous or mils, what does…

IGFET Quirks

Textbook

A Very Simple Circuit

Textbook

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

T-Match Impedance Matching Circuits

Tools

A tool designed to compute the values to be used in a T-match Impedance Circuit

Signal Coupling

Textbook

PARTS AND MATERIALS 6 volt battery One capacitor, 0.22 µF…

Static Electricity Sensor

Textbook

PARTS AND MATERIALS One N-channel junction field-effect transistor,…

Data - Resistance & Superconductor

Textbook

Tables of specific resistance and temperature coefficient of…

Conductors, Insulators, and Electron Flow

Textbook

The electrons of different types of atoms have different degrees of…

The Pentode

Textbook

Another strategy for addressing the problem of secondary electrons…

Correct use of Ohm’s Law

Textbook

Reminders When Using Ohm’s Law One of the most common mistakes…

JFET Current Regulator

Textbook

PARTS AND MATERIALS One N-channel junction field-effect transistor,…

Simple Vector Addition

Textbook

Remember that vectors are mathematical objects just like numbers on a…

Diodes

Textbook

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

Vol VI. Credits

Textbook

All entries arranged in alphabetical order of surname. Major…

Precision Voltage Follower

Textbook

PARTS AND MATERIALS Operational amplifier, model 1458 or 353…

Wire Self Inductance Calculator

Tools

This calculator will help compute the inductance of a length of wire.

Electrical Signal Types

Textbook

With BogusBus, our signals were very simple and straightforward: each…

Noise Figure Calculator

Tools

A tool designed to calculate the noise figure of cascaded amplifiers

Delta and Wye 3-Phase Circuits

Worksheets - Lighting

Label where each of the following electrical quantities would be found…

Millman’s Theorem

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

Precise Diode Circuits

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

Binary Count Sequence

Textbook

If we examine a four-bit binary count sequence from 0000 to 1111, a…

Dielectric Strengths for Insulators

Textbook

Dielectric strength in kilovolts per inch (kV/in): Material*…

Successive Approximation ADC

Textbook

One method of addressing the digital ramp ADC’s shortcomings is…

Vol I. Credits

Textbook

All entries arranged in alphabetical order of surname. Major…

Copper Wire Ampacity Table

Textbook

Ampacities of copper wire, in free air at 30o C: INSULATION TYPE…

The Bipolar Junction Transistor (BJT) as a Switch

Textbook

Bipolar junction transistors (Also known as BJTs) can be used as an…

Conventional Versus Electron Flow

Textbook

“The nice thing about standards is that there are so many of…

Octal and Hexadecimal Numeration

Textbook

Because binary numeration requires so many bits to represent…

Potentiometric Voltmeter

Textbook

PARTS AND MATERIALS Two 6 volt batteries One potentiometer, single…

History of SPICE

Textbook

SPICE is a computer program designed to simulate analog electronic…

NAND Gate S-R Flip-Flop

Textbook

PARTS AND MATERIALS 4011 quad NAND gate (Radio Shack catalog #…

Network Topology

Textbook

Point-to-Point Connecting two digital devices with a network, would…

Algebraic Equation Manipulation for Electric Circuits

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The electrical resistance of a conductor at any temperature may be…

The P-N Junction

Textbook

If a block of P-type semiconductor is placed in contact with a block…

Edge Coupled Trace Inductance Calculator

Tools

This calculator helps you compute for the inductance of an edge coupled trace.

Potato Battery

Textbook

PARTS AND MATERIALS One large potato One lemon (optional) Strip of…

Polyphase Motor Design

Textbook

AC Motors Perhaps the most important benefit of polyphase AC power…