Categories

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…

Simple Combination Lock

Textbook

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

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…

Special-purpose Diodes

Textbook

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

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…

Design Project: LED Stroboscope

Worksheets - LEDs

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

Convert MCD to Lumens

Tools

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

Optoelectronic Devices

Worksheets - LEDs

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

CMOS 555 Long Duration Flyback 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…

CMOS 555 Long Duration Red LED Flasher

Textbook

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

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.

Karnaugh Mapping

Worksheets - LEDs

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

Digital Display Circuits

Worksheets - LEDs

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

LED Sequencer

Textbook

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

Display Tubes

Textbook

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

Current Divider Circuits and the Current Divider Formula

Textbook

A parallel circuit is often called a current divider for its ability…

Passive Integrator and Differentiator Circuits

Worksheets - LEDs

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

Phase-Locked Loops

Worksheets - LEDs

This is a schematic for a simple VCO: The oscillator is of the RC…

Non-right Triangle Trigonometry

Textbook

The Law of Sines (for any triangle) The Law of Cosines (for any…

Rules for Limits

Textbook

    RELATED WORKSHEETS: Calculus for Electric Circuits…

Ohmmeter Usage

Textbook

Parts and Materials Multimeter, digital or analog Assorted resistors…

Electron Tubes

Textbook

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

Time Constant Equations

Textbook

Value of time constant in series RC and RL circuits   Time…

Contact “Normal” State and Make/Break Sequence

Textbook

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

Review of R, X, and Z (Resistance, Reactance and Impedance)

Textbook

Before we begin to explore the effects of resistors, inductors, and…

Basic Circuit Troubleshooting

Worksheets - LEDs

Determine if the light bulb will de-energize for each of the following…

Introduction to Insulated-gate Field-effect Transistors

Textbook

As was stated in the last chapter, there is more than one type of…

Arithmetic with Scientific Notation

Textbook

The benefits of scientific notation do not end with ease of writing…

Lock-out / Tag-out

Worksheets - LEDs

In this motor control circuit, how would you ensure that there is no…

Tachogenerators

Textbook

An electromechanical generator is a device capable of producing…

Re-drawing Complex Schematics

Textbook

Typically, complex circuits are not arranged in nice, neat, clean…

Temperature Coefficients of Resistance Table

Textbook

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

Measurements of AC Magnitude

Textbook

So far we know that AC voltage alternates in polarity and AC current…

Parallel Circuit Rules

Textbook

Voltage Components in a parallel circuit share the same voltage:…

Harmonic Phase Sequences

Textbook

In the last section, we saw how the 3rd harmonic and all of its…