Radio Circuits

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

---

Textbook

Special-purpose Diodes

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

---

Textbook

Principles of Radio

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

---

Textbook

Quantum Physics

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

---

Textbook

Design Project: Radio Transmitter

Research the FCC (Federal Communication Commission) guidelines on…

---

Worksheets - Communication

Free Space Path Loss Calculator

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

---

Tools

Link Budget Calculator

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.

---

Tools

Fundamentals of Radio Communication

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

---

Worksheets - Communication

High-Reliability Circuits

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

---

Worksheets - Communication

Intro Lab - Ohm’s Law

Project Overview This project employs all of the skills…

---

Textbook

Si Lab - JFET Switching Circuit and Static Electricity Sensor

In this hands-on semiconductor electronics experiment, use a junction field-effect transistor (JFET) to build a sensitive switching circuit and learn about JFET current gain.

---

Textbook

Superconducting Devices

Superconducting devices, though not widely used, have some unique…

---

Textbook

Octal and Hexadecimal Numeration

Because binary numeration requires so many bits to represent…

---

Textbook

Monostable Multivibrators

We’ve already seen one example of a monostable multivibrator in…

---

Textbook

The Importance of Electrical Safety

With this lesson, I hope to avoid a common mistake found in…

---

Textbook

LC Tank Circuit Resonance Calculator

This calculator computes the resonant frequency of a parallel inductor and capacitor "tank" circuit.

---

Tools

Measurements of AC Magnitude

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

---

Textbook

Thermocouples

Seebeck Effect An interesting phenomenon applied in the field of…

---

Textbook

Contributors (6)

Contributors to this chapter are listed in chronological order of…

---

Textbook

Emergency Response

Despite lock-out/tag-out procedures and multiple repetitions of…

---

Textbook

Meter Check of a Diode

The Functionality of Diode Polarity Being able to determine the…

---

Textbook

Insulated Gate Bipolar Transistors

What is an Insulated Gate Bipolar Transistor (IGBT), and what…

---

Worksheets - Communication

Resonant Filters

So far, the filter designs we’ve concentrated on have employed…

---

Textbook

Wiring Color Codes Infographic

Wiring Color Codes Infographic. Released under the Creative Commons…

---

Textbook

DC Lab - Potato Battery

In this hands-on electronics experiment, you will create a battery from a potato (yes! a potato) and learn about the relationship between chemical energy and electric energy.

---

Textbook

The Gated S-R Latch

It is sometimes useful in logic circuits to have a multivibrator which…

---

Textbook

Lock-out / Tag-out

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

---

Worksheets - Communication

AC phase

If we were to express the series-connected DC voltages as phasors…

---

Worksheets - Communication

Early Tube History

Thomas Edison, that prolific American inventor, is often credited with…

---

Textbook