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Re-drawing Complex Schematics

Textbook

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

“Ladder” Diagrams

Textbook

Ladder diagrams are specialized schematics commonly used to document…

Inductors and Calculus

Textbook

Inductors do not have a stable “resistance” as conductors…

Synchronous Counters

Textbook

What is a Synchronous Counter? A synchronous counter, in contrast to…

Digital Display Circuits

Worksheets - Telecom

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

BJT Quirks

Textbook

An ideal transistor would show 0% distortion in amplifying a signal.…

Semiconductor Devices in SPICE

Textbook

The SPICE (Simulation Program, Integrated Circuit Emphesis)…

Coax Impedance Calculator

Tools

A helpful tool for calculating the impedance of a coaxial cable.

Optoelectronic Devices

Worksheets - Telecom

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

Wiring Color Codes

Textbook

Wiring for AC and DC power distribution branch circuits are color…

Energy, Work, and Power

Worksheets - Telecom

Define the following terms: energy, work, and power.

Transistor Ratings and Packages (JFET)

Textbook

Series-Parallel Combination AC Circuits

Worksheets - Telecom

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

Design Project: Audio Power Amplifier

Worksheets - Telecom

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

PWM Power Controller

Textbook

PARTS AND MATERIALS Four 6 volt batteries One capacitor, 100 µF…

Power Conversion Circuits

Worksheets - Telecom

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

Boolean Rules for Simplification

Textbook

Boolean algebra finds its most practical use in the simplification of…

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

Textbook

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

Optical Data Communication

Textbook

A modern alternative to sending (binary) digital information via…

Voltage Comparator

Textbook

Parts and Materials Operational amplifier, model 1458 or 353…

Musical Keyboard as a Signal Generator

Textbook

PARTS AND MATERIALS Electronic “keyboard” (musical)…

Shock Current Path

Textbook

As we’ve already learned, electricity requires a complete path…

Signal Coupling

Textbook

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

Physiological Effects of Electricity

Textbook

Most of us have experienced some form of electric “shock,”…

Ohm’s Law (again!)

Textbook

A common phrase heard in reference to electrical safety goes something…

Meter Check of a Transistor (BJT)

Textbook

Bipolar transistors are constructed of a three-layer semiconductor…

Shift Registers: Serial-in, Serial-out

Textbook

Serial-in, serial-out shift registers delay data by one clock time for…

Digital-to-Analog Conversion

Worksheets - Telecom

If a pulse-width modulated (PWM) signal is sent to a passive…

Circuit Components

Textbook

Remember that this tutorial is not exhaustive by any means, and that…

Capacitor Sizing Equation

Textbook

Capacitance Formula     Permittivity of Dielectric  …

Simple Parallel Circuits

Textbook

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

Safe Practices

Textbook

If at all possible, shut off the power to a circuit before performing…

Build a Transformer

Textbook

PARTS AND MATERIALS Steel flat bar, 4 pieces Miscellaneous bolts,…

Thyristor Application Circuits

Worksheets - Telecom

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

Control Circuits

Textbook

Wires and Connections

Textbook

Older electrical schematics showed connecting wires crossing, while…

Ohm’s Law Calculator

Tools

Calculate circuit parameters using Ohm's Law

Electric Fields and Capacitance

Textbook

Introduction Whenever an electric voltage exists between two separated…

Practical Considerations of ADC Circuits

Textbook

Perhaps the most important consideration of an ADC is its resolution.…

Specific Troubleshooting Techniques

Textbook

After applying some of the general troubleshooting tips to narrow the…