Categories

Digital Display Circuits

Worksheets - LCDs

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

Special-purpose Diodes

Textbook

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

Synchronous Motors

Textbook

Single Phase Synchronous Motors Single-phase synchronous motors are…

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…

7-segment Display

Textbook

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

Programmable Logic Controllers (PLC)

Textbook

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

CMOS 555 Long Duration Minimum Parts Red 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.

LED Sequencer

Textbook

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

Pulsed-light Sensor

Textbook

PARTS AND MATERIALS Two 6-volt batteries One NPN…

Design Project: LED Stroboscope

Worksheets - LCDs

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

Optoelectronic Devices

Worksheets - LCDs

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

Simple Combination Lock

Textbook

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

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…

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…

Karnaugh Mapping

Worksheets - LCDs

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

Digital Display Circuits

Worksheets - LCDs

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…

Winding Configurations

Textbook

Transformers with Multiple Secondaries Transformers are very versatile…

Kirchhoff’s Voltage Law (KVL)

Textbook

What is Kirchhoff’s Voltage Law (KVL)? The principle known as…

NOR Gate S-R Latch

Textbook

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

Design Project: LED Stroboscope

Worksheets - LCDs

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

Design Project: Event Counter

Worksheets - LCDs

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

Design Project: AC-DC Power Supply

Worksheets - LCDs

Safety is very important when designing and/or building a device…

Derivatives of Power Functions of e

Textbook

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

Connectors

Textbook

An electrical connector, is an electro-mechanical device used to join…

Full-wave Center-tap Rectifier

Textbook

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

Design Project: Signal Generator

Worksheets - LCDs

Explain the principle of operation for the particular integrated…

AC Commutator Motors

Textbook

Charles Proteus Steinmetz’s first job after arriving in America…

Time-delay Relays

Textbook

What are Time-Delay Relays? Some relays are constructed with a kind of…

Voltage Divider Circuits

Worksheets - LCDs

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

Special-purpose Batteries

Textbook

Mercury Standard Cell Back in the early days of electrical measurement…

Junction Field-effect Transistors

Textbook

The field effect transistor was proposed by Julius Lilienfeld in US…

Conductor Size

Textbook

It should be common-sense knowledge that liquids flow through…

Characteristic Impedance

Worksheets - LCDs

Note the “50 ohm” rating printed on the jacket of the cable. What…

Building a Differential Amplifier

Textbook

Differential Op-Amp Circuits An op-amp with no feedback is already a…

What Are Electric Circuits?

Textbook

You might have been wondering how charges can continuously flow in a…

Current Mirror BJTs

Textbook

Bipolar Junction Transistor or BJT Current Mirror An often-used…