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Oscillator Circuits

Worksheets - Microphones

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

Passive Filter Circuits

Worksheets - Microphones

In very simple, qualitative terms, rate the impedance of capacitors…

Fundamentals of Radio Communication

Worksheets - Microphones

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

Class A BJT Amplifiers

Worksheets - Microphones

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

Tubes versus Semiconductors

Textbook

Devoting a whole chapter in a modern electronics text to the design…

LC Resonant Frequency Calculator

Tools

A circuit with an inductor (L) and capacitor (C) connected in parallel or series will have a resonant frequency at which their impedances are equal. Given two of the three values—inductance, capacitance, or resonant frequency—this tool will calculate the missing third variable.

What is a Filter?

Textbook

It is sometimes desirable to have circuits capable of selectively…

Basic Electricity Worksheet

Worksheets - Microphones

What is the purpose of the switch shown in this schematic diagram?

Decibels

Textbook

The Bel is Used to Represent Gain In its simplest form, an…

Si Lab - Light Sensor (LED Photodetector)

Textbook

In this hands-on semiconductor electronics experiment, use an LED as a light-sensitive photodetector and learn how to use a bipolar transistor in a common-emitter amplifier configuration.

RC Time Constant Calculator

Tools

The time constant of a series RC circuit is the product of the resistance and capacitance. Given two of the three values—resistance, capacitance, or RC time constant—this tool will calculate the missing third variable.

Design Project: Audio Media-Based Signal Generator

Worksheets - Microphones

Identify some different ways you can create the sine-wave audio tracks…

Design Project: Audio Power Amplifier

Worksheets - Microphones

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

Lorentz Force Calculator

Tools

This calculator will determine the combined Lorentz force exerted on a charged particle moving through both an electric field and a magnetic field.

Radio Circuits

Textbook

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

Battery Life Calculator

Tools

This calculator provides three options—basic, intermediate, and advanced—for determining expected battery life for microcontroller, Internet of Things (IoT), and edge processing systems with up to four different operating modes.

The “Operational” Amplifier

Textbook

Long before the advent of digital electronic technology, computers…

Input and Output Coupling

Textbook

To overcome the challenge of creating necessary DC bias voltage for an…

Biasing Techniques (BJT)

Textbook

In the common-emitter section of this chapter, we saw a SPICE analysis…

Decibel Measurements

Worksheets - Microphones

During the early development of telephone technology, a unit was…

The Silicon-Controlled Rectifier (SCR)

Textbook

Shockley Diodes and Silicon Controlled Rectifiers (SCRs) Shockley…

High-pass Filters

Textbook

A high-pass filter’s task is just the opposite of a low-pass…

Intro Lab - How to Use an Ohmmeter to Measure Resistance

Textbook

In this hands-on introduction to electronics, you will experiment with a multimeter and learn how to measure resistance using the ohmmeter function.

AC Lab - Sensing AC Electric Fields

Textbook

In this hands-on AC electronics experiment, you will sense AC electric fields using the sensitive voltage detector and learn about capacitive coupling, EMI, and shielding techniques.

Basic Logic Gates

Worksheets - Microphones

Identify the type of logic gate shown in this schematic diagram, and…

Si Lab - Multi-stage Amplifier

Textbook

In this hands-on semiconductor electronics experiment, construct a three-stage common-emitter amplifier using bipolar junction transistors (BJTs) and learn about multi-stage gain and feedback.

Basic Electricity Worksheet

Worksheets - Microphones

What is the purpose of the switch shown in this schematic diagram?

Gas Discharge Tubes

Textbook

If you’ve ever witnessed a lightning storm, you’ve seen…

DC Lab - Rheostat Range Limiting

Textbook

In this hands-on electronics experiment, you will use series and parallel resistor networks to precisely adjust the range and zero point of a rheostat.

The R/2R DAC (Digital-to-Analog Converter)

Textbook

The R/2R DAC circuit is an alternative to the binary-weighted-input…

Capacitor Transient Response

Textbook

Because capacitors store energy in the form of an electric field, they…

555 Lab - Advanced Red LED Flasher

Textbook

In this hands-on electronics experiment, build a red LED flasher with a transistor drive to control the current and learn how to use transistors to provide current gain and how to limit LED current.

Design Project: Signal Generator

Worksheets - Microphones

Explain the principle of operation for the particular integrated…

Time-delay Relays

Textbook

What are Time-Delay Relays? Some relays are constructed with a kind of…

Magnetic Fields and Inductance

Textbook

Whenever electrons flow through a conductor, a magnetic field will…

Analog Lab - PWM Power Controller

Textbook

In this hands-on electronics experiment, you will build a pulse-width modulator power controller for a light and learn the basics of PWM signals.

Oscilloscope Trigger Controls

Worksheets - Microphones

A very useful tool for observing rotating objects is a strobe light.…

Decibels

Textbook

The Bel is Used to Represent Gain In its simplest form, an…

Gate Universality

Textbook

NAND and NOR gates possess a special property: they are universal.…

DC Lab - Potentiometer Voltage Divider

Textbook

In this hands-on electronics experiment, you will use potentiometers to vary a voltage and learn about voltage divider ratios and potentiometer applications.