Categories

Sensitive Audio Detector

Textbook

PARTS AND MATERIALS High-quality “closed-cup” audio…

Mutual Inductance

Textbook

If two coils of wire are brought into close proximity with each other…

Potentiometer as a Rheostat

Textbook

Learning Objectives Rheostat use Wiring a potentiometer as a rheostat…

Capacitor Charging and Discharging

Textbook

Capacitor Charging and Discharging Experiment Parts and Materials To…

Vacuum Tube Audio Amplifier

Textbook

PARTS AND MATERIALS One 12AX7 dual triode vacuum tube Two power…

Inverting Op-Amp Resistor Calculator

Tools

This calculator determines the bias and feedback of resistors for an inverting op-amp.

Radio Circuits

Textbook

(a) Crystal radio. (b) Modulated RF at antenna. (c) Rectified RF at…

Series DC Circuits Practice Worksheet with Answers

Worksheets - Passives

In this circuit, three resistors receive the same amount of current (4…

Variable Inductor

Textbook

PARTS AND MATERIALS Paper tube, from a toilet-paper roll Bar of iron…

Impedance

Worksheets - Passives

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

Induction Motor

Textbook

PARTS AND MATERIALS AC power source: 120VAC Capacitor, 3.3 µF…

Component Modeling

Worksheets - Passives

When plotted on a curve tracer, the characteristic curve for a normal…

Example Circuits and Netlists

Textbook

The following circuits are pre-tested netlists for SPICE 2g6, complete…

Rectifier/Filter Circuit

Textbook

PARTS AND MATERIALS Low-voltage AC power supply Bridge rectifier pack…

Parallel DC Circuits Practice Worksheet With Answers

Worksheets - Passives

In this circuit, three resistors receive the same amount of voltage…

Calculus for Electric Circuits

Worksheets - Passives

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

Temperature Coefficient of Resistance

Textbook

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

Factors Affecting Inductance

Textbook

There are four basic factors of inductor construction determining the…

AC Inductor Circuits

Textbook

Resistors vs. Inductors Inductors do not behave the same way as…

Capacitor Charge and Time Constant Calculator

Tools

This calculator computes for the capacitor charge time and energy, given the supply voltage and the added series resistance.

Tank Circuit Resonance Calculator

Tools

This calculator computes the resonant frequency of a tank circuit

Microstrip Patch Antenna Calculator

Tools

This tool calculates the dimensions of the microstrip patch antenna given the desired operating frequency.

Rules for Antiderivatives

Textbook

Constant Rule     Rule of Sums     Rule of…

Practical Considerations - Batteries

Textbook

When connecting batteries together to form larger “banks”…

Arithmetic with Scientific Notation

Textbook

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

Venn Diagrams and Sets

Textbook

Mathematicians use Venn diagrams to show the logical relationships of…

Simple Circuits

Worksheets - Passives

Shown here is the schematic symbol for a resistor: What is the purpose…

Programmable Logic Technology

Worksheets - Passives

Define the following acronyms as they apply to digital logic circuits:…

The Bipolar Junction Transistor (BJT) as a Switch

Textbook

Bipolar junction transistors (Also known as BJTs) can be used as an…

Contributors (15)

Textbook

Contributors to this chapter are listed in chronological order of…

Make Your Own Multimeter

Textbook

PARTS AND MATERIALS Sensitive meter movement (Radio Shack catalog #…

Correct use of Ohm’s Law

Textbook

Reminders When Using Ohm’s Law One of the most common mistakes…

Series Circuit Rules

Textbook

Current Components in a series circuit share the same current: Itotal…

Standing Waves and Resonance

Textbook

Whenever there is a mismatch of impedance between transmission line…

What is a Filter?

Textbook

It is sometimes desirable to have circuits capable of selectively…

Maximum Power Transfer Theorem

Textbook

The Maximum Power Transfer Theorem is not so much a means of analysis…

Vol IV. Credits

Textbook

All entries arranged in alphabetical order of surname. Major…

Component Modeling

Worksheets - Passives

When plotted on a curve tracer, the characteristic curve for a normal…

Applications of Resonance

Textbook

So far, the phenomenon of resonance appears to be a useless curiosity,…

Impedance Matching With Transformers

Worksheets - Passives

Suppose you were to take a 3 kW electric heater rated for 240 VAC and…

Wire Types and Sizes

Worksheets - Passives

Most electrical wire is covered in a rubber or plastic coating called…

Inductor Sizing Equation

Textbook

The Inductance Formula     Wheeler’s formulas for…

Transistors, junction field-effect (JFET)

Textbook

Note that the direction of the arrow at the gate indicates the…

Antenna Downtilt and Coverage Calculator

Tools

This calculator will determine the correct antenna downtilt angle given the heights of the antennas and distance between them.

The Junction Field-effect Transistor (JFET) as a Switch

Textbook

Like its bipolar cousin, the field-effect transistor may be used as an…

Special-purpose Diodes

Textbook

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

Peak to Peak Voltage Calculator (VP-P)

Tools

This calculator shows the peak-to-peak voltage (VP-P) value from the peak voltage, RMS voltage, or average voltage.

Passive Integrator and Differentiator Circuits

Worksheets - Passives

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

Pi Attenuator Calculator

Tools

This calculator helps you determine the values of the resistors R1 and R2 to be used for a Pi Attenuator.

Design Project: Sensitive Audio Detector

Worksheets - Passives

The choice of step-down transformers to use in a project such as this…

Standing Waves and Resonance

Textbook

Whenever there is a mismatch of impedance between transmission line…

Insulator Breakdown Voltage

Textbook

The atoms in insulating materials have very tightly-bound electrons,…

Why digital?

Textbook

Although many textbooks provide good introductions to digital memory…

The Thyristor

Textbook

A thyristor is a device that has a number of unusual characteristics.…

The Antiderivative (Indefinite Integral)

Textbook

  Notice something important here: taking the derivative of f(x)…

Design Project: Signal Generator

Worksheets - Passives

Explain the principle of operation for the particular integrated…

Capacitors and Calculus

Textbook

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

What is a Filter?

Textbook

It is sometimes desirable to have circuits capable of selectively…

Single-ended and Differential Amplifiers

Textbook

For ease of drawing complex circuit diagrams, electronic amplifiers…

Special Diodes

Worksheets - Passives

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