Categories

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…

Special-purpose Diodes

Textbook

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

Optoelectronic Devices

Worksheets - LEDs

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

7-segment Display

Textbook

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

Display Tubes

Textbook

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

Special-purpose Diodes

Textbook

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

LED Sequencer

Textbook

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

7-segment Display

Textbook

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

Convert MCD to Lumens

Tools

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

Synchronous Motors

Textbook

Single Phase Synchronous Motors Single-phase synchronous motors are…

CMOS 555 Long Duration Blue LED Flasher

Textbook

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

Display Tubes

Textbook

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

Transistor as a Switch

Textbook

PARTS AND MATERIALS Two 6-volt batteries One NPN…

Pulsed-light Sensor

Textbook

PARTS AND MATERIALS Two 6-volt batteries One NPN…

Digital Display Circuits

Worksheets - LEDs

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

CMOS 555 Long Duration Red LED Flasher

Textbook

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

CMOS 555 Long Duration Flyback LED Flasher

Textbook

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

Karnaugh Mapping

Worksheets - LEDs

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

Optoelectronic Devices

Worksheets - LEDs

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

Design Project: LED Stroboscope

Worksheets - LEDs

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

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.

Simple Combination Lock

Textbook

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

CMOS 555 Long Duration Minimum Parts Red LED Flasher

Textbook

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

Programmable Logic Controllers (PLC)

Textbook

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

CMOS 555 Long Duration Blue LED Flasher

Textbook

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

Factors Affecting Capacitance

Textbook

There are three basic factors of capacitor construction determining…

Simple Series Circuits

Textbook

On this page, we’ll outline the three principles you should…

Decoder

Textbook

A decoder is a circuit that changes a code into a set of signals. It…

Scientific Notation

Textbook

In many disciplines of science and engineering, very large and very…

Multiplexers

Textbook

A multiplexer, abbreviated mux, is a device that has multiple inputs…

How to Use an Ammeter to Measure Current

Textbook

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

Series and Parallel Inductors

Textbook

When inductors are connected in series, the total inductance is the…

Noise Figure and Noise Temperature Calculator

Tools

This calculator computes the noise figure and noise temperature in a system

Conductors and Insulators

Worksheets - LEDs

Given two lengths of metal wire, which one will have the least…

Series-Parallel Combination AC Circuits

Worksheets - LEDs

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

The P-N Junction

Textbook

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

Contact “Normal” State and Make/Break Sequence

Textbook

Any kind of switch contact can be designed so that the contacts…

What are “Series” and “Parallel” Circuits?

Textbook

Circuits consisting of just one battery and one load resistance are…

SPICE Quirks

Textbook

“Garbage in, garbage out.” —Anonymous SPICE is a…

AC Network Analysis

Worksheets - LEDs

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

Electron Tubes

Textbook

Cathode:   This is the electrode that is heated and emits the…

Series Resistor-Inductor Circuits

Textbook

In the previous section, we explored what would happen in simple…

Minterm vs Maxterm Solution

Textbook

So far we have been finding Sum-Of-Product (SOP) solutions to logic…

What is a Meter?

Textbook

A meter is any device built to accurately detect and display an…