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Radio Circuits

Textbook

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

Special-purpose Diodes

Textbook

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

Free Space Path Loss Calculator

Tools

This calculator calculates the free space loss, given the distance, frequency, and gain, between two antennas.

Quantum Physics

Textbook

“I think it is safe to say that no one understands quantum…

Principles of Radio

Textbook

One of the more fascinating applications of electricity is in the…

Link Budget Calculator

Tools

A Link Budget puts into account all gains and losses a signal goes through in a system as it is transmitted. The calculator calculates the power of the received signal given amplifier and antenna gains, and medium loss.

High-Reliability Circuits

Worksheets - Navigation

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

Design Project: Radio Transmitter

Worksheets - Navigation

Research the FCC (Federal Communication Commission) guidelines on…

Fundamentals of Radio Communication

Worksheets - Navigation

What does the acronym RF stand form, in reference to radio-related…

Skin Depth Calculator

Tools

A tool designed to calculate skin depth based on the conductive material being used and the frequency of the signal.

Synchronous Motors

Textbook

Single Phase Synchronous Motors Single-phase synchronous motors are…

555 Timer Monostable Circuit Calculator

Tools

This calculator computes for the output pulse width of a 555 timer monostable circuit

Voltmeter Impact on Measured Circuit

Textbook

Every meter impacts the circuit it is measuring to some extent, just…

Basic Logic Gate Troubleshooting

Worksheets - Navigation

Counting practice: count from zero to thirty-one in binary, octal, and…

Ammeter Design

Worksheets - Navigation

What would happen to this meter movement, if connected directly to a…

Logarithms for Analog Circuits

Worksheets - Navigation

The concept of a mathematical power is familiar to most students of…

How to Use Thevenin’s Theorem

Textbook

This page will walk you step-by-step through the process of…

Design Project: Sensitive Microphone Amplifier

Worksheets - Navigation

Identify which direction each potentiometer wiper must move in this…

Microprocessor Programming

Textbook

The “vocabulary” of instructions which any particular…

Metric Prefixes and Unit Conversions

Textbook

Metric Prefixes   Yotta = 1024 Symbol: Y Zetta = 1021 Symbol: Z…

Square Wave Signals

Textbook

It has been found that any repeating, non-sinusoidal waveform can be…

Mesh Current Method (Loop Current Method)

Textbook

This page provides a step-by-step introduction to using the mesh…

Electrical Connections

Worksheets - Navigation

What, exactly, is necessary to establish electrical continuity between…

Factors Affecting Capacitance

Textbook

There are three basic factors of capacitor construction determining…

A Binary Adder

Textbook

Suppose we wanted to build a device that could add two binary bits…

CMOS Gate Circuitry

Textbook

Up until this point, our analysis of transistor logic circuits has…

Conventional Versus Electron Flow

Textbook

“The nice thing about standards is that there are so many of…

Temperature Coefficient of Resistance

Worksheets - Navigation

It is a common phenomenon for the electrical resistance of a substance…

Half-Adder

Textbook

As a first example of useful combinational logic, let’s build a…