Categories

Display Tubes

Textbook

In addition to performing tasks of amplification and switching, tubes…

Design Project: LED Stroboscope

Worksheets - LEDs

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

CMOS 555 Long Duration Red LED Flasher

Textbook

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

Digital Display Circuits

Worksheets - LEDs

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

Programmable Logic Controllers (PLC)

Textbook

Before the advent of solid-state logic circuits, logical control…

Display Tubes

Textbook

In addition to performing tasks of amplification and switching, tubes…

CMOS 555 Long Duration Blue LED Flasher

Textbook

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

CMOS 555 Long Duration Minimum Parts Red LED Flasher

Textbook

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

Special-purpose Diodes

Textbook

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

Transistor as a Switch

Textbook

PARTS AND MATERIALS Two 6-volt batteries One NPN transistor—models…

Optoelectronic Devices

Worksheets - LEDs

In this circuit, the electric motor is supposed to turn on whenever…

Convert MCD to Lumens

Tools

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

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.

7-segment Display

Textbook

PARTS AND MATERIALS 4511 BCD-to-7seg latch/decoder/driver (Radio…

CMOS 555 Long Duration Flyback LED Flasher

Textbook

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

LED Sequencer

Textbook

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

Karnaugh Mapping

Worksheets - LEDs

Identify each of these logic gates by name, and complete their…

Simple Combination Lock

Textbook

PARTS AND MATERIALS 4001 quad NOR gate (Radio Shack catalog #…

Ammeter Design

Worksheets - LEDs

What would happen to this meter movement, if connected directly to a…

Algebraic Substitution for Electric Circuits

Worksheets - LEDs

There are two basic Ohm’s Law equations: one relating voltage,…

Temperature Coefficient of Resistance

Textbook

You might have noticed on the table for specific resistances that all…

Kirchhoff’s Current Law (KCL)

Textbook

What Is Kirchhoff’s Current Law? Kirchhoff’s Current Law,…

Design Project: Audio Power Amplifier

Worksheets - LEDs

Explain how the microphone in your amplifier works. How, exactly, does…

Pulse Width Modulation

Textbook

Pulse Width Modulation (PWM) uses digital signals to control power…

Broadside Coupled Trace Inductance Calculator

Tools

This calculator helps you compute the inductance of a broadside coupled trace.

Derivatives of Power Functions of e

Textbook

Example Derivatives of e Proportionality Constant When we say that a…

555 Timer Monostable Circuit Calculator

Tools

This calculator computes for the output pulse width of a 555 timer monostable circuit

Audio Oscillator

Textbook

PARTS AND MATERIALS Two 6-volt batteries Three NPN…

Practical Considerations - Transformers

Textbook

Power Capacity As has already been observed, transformers must be well…

Dielectric Strengths for Insulators

Textbook

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

Inductor Sizing Equation

Textbook

The Inductance Formula Wheeler’s formulas for inductance of air core…

Characteristic Impedance

Textbook

The Parallel Wires of Infinite Length Suppose, though, that we had a…

Mutual Inductors

Textbook

Band-stop Filters

Textbook

How to Create a Band-stop Filter? Also called band-elimination,…

Microcontroller Principles

Worksheets - LEDs

Read the following quotation, and then research the term…

AC Phase

Textbook

Things start to get complicated when we need to relate two or more AC…

Active-mode Operation (IGFET)

Textbook

Numeration Systems

Worksheets - LEDs

Digital computers communicate with external devices through ports:…