Latest Crystals and Resonators Education

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Op-amp Circuits

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

Radio Circuits

Textbook

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

Switched Capacitor Circuitry

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Write an equation describing the precise mathematical relationship…

Digital Logic Signals

Worksheets - Crystals and Resonators

A rheostat (variable resistor) and a switch are both examples of…

555 Lab - Oscillator With Hysteresis

Textbook

In this hands-on electronics experiment, build an oscillator with hysteresis from a Schmitt trigger and learn how to use it to create an RC oscillator and a method to configure a 555 timer as an astable multivibrator.

Time Constant Circuits

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

OpAmp Oscillator Circuits

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

Oscillator Circuits

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

Series and Parallel AC Circuits

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

Time Constant Calculations

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

Signal Modulation

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A modern method of electrical power control involves inserting a…

Resonance

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The Q factor of a series inductive circuit is given by the following…

Time Constant Circuits

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Generally speaking, how many “time constants” worth of time does…

Impedance

Worksheets - Crystals and Resonators

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

Clipper and Clamper Circuits

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

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.

Wiring Color Codes Infographic

Textbook

Wiring Color Codes Infographic. Released under the Creative Commons…

Superconductivity

Textbook

Conductors lose all of their electrical resistance when cooled to…

Conductors, Insulators, and Electron Flow

Textbook

The electrons of different types of atoms have different degrees of…

Capacitors

Worksheets - Crystals and Resonators

Identify some of the different types of capacitors, and their…

Analog Lab - Op Amp Integrator

Textbook

In this hands-on electronics experiment, you will build an analog integrator using an operational amplifier and learn about integration functions, op amp input bias currents, and how to limit the voltage swing of a potentiometer.

Resistors

Textbook

Because the relationship between voltage, current, and resistance in…

AC Motor Control Circuits

Worksheets - Crystals and Resonators

Perhaps the most challenging aspect of interpreting ladder diagrams,…

Why L/R and not LR?

Textbook

Learn About L/R Time Constants It is often perplexing to new students…

Inductor Quirks

Textbook

In an ideal case, an inductor acts as a purely reactive device. That…

Mutual Inductance and Basic Operation

Textbook

Behaviors of Inductors wrapped around a Conductive Core Suppose we…

Voltmeter Impact on Measured Circuit

Textbook

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

Impedance Matching With Transformers

Worksheets - Crystals and Resonators

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

Power Conversion Circuits

Worksheets - Crystals and Resonators

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

Resonant Filters

Textbook

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

SPICE Simulation of Series and Parallel Circuits

Textbook

Previously, we examined series circuits and parallel circuits using…

Parallel Circuits and the Application of Ohm’s Law

Textbook

In this introduction to parallel resistance circuits, we will explain…

Resistors

Worksheets - Crystals and Resonators

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

Digital Lab - Basic 2-Input NAND Gate Circuit

Textbook

In this hands-on electronics experiment, build and test a 2-input digital NAND gate with LED indicators and learn to read pinout diagrams, power a digital IC, connect unused inputs and outputs, and use pulldown resistors.

DC Lab - Sensitive Voltage Detector With Audio Output

Textbook

In this hands-on electronics experiment, you will construct a voltage detector with adjustable sensitivity and audio output, and you will learn a method for detecting small electrical signals without an oscilloscope.

Digital Lab - 10-bit Flashing LED Sequencer

Textbook

In this hands-on electronics experiment, build and test an automated circuit that sequentially flashes 10 LED, and learn about counters, frequency dividers, and switch debouncing.

Kirchhoff’s Laws

Worksheets - Crystals and Resonators

Many electronic circuits use what is called a split or a dual power…

Electrical Isolation

Textbook

SPICE analysis of Electrical Isolation Aside from the ability to…

Measurements of AC Magnitude

Textbook

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

DC Generator Theory

Worksheets - Crystals and Resonators

Generators used in battery-charging systems must be regulated so as to…

Resonance

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The Q factor of a series inductive circuit is given by the following…

Junction Diodes

Textbook

There was some historic crude, but usable were some historic crude,…

Current Divider Circuits

Worksheets - Crystals and Resonators

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

Single-phase Induction Motors

Textbook

A three-phase motor may be run from a single-phase power source.…

DC Lab - Parallel Batteries

Textbook

In this hands-on electronics experiment, you will connect batteries in parallel to power a light and learn the relationship between the individual battery currents and the total system current.

Analysis Options

Textbook

AC ANALYSIS: General form: .ac [curve] [points] [start] [final]…

Algebraic Equation Manipulation for Electric Circuits

Worksheets - Crystals and Resonators

The electrical resistance of a conductor at any temperature may be…

Numeration Systems

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Digital computers communicate with external devices through ports:…

Flip-Flop Circuits

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

DC Lab - Voltage Divider

Textbook

In this hands-on electronics experiment, you will build a resistive voltage divider and observe how Ohm's law and Kirchhoff's voltage law (KVL) function in real circuits using a voltmeter and an ammeter.

Measurement Circuits

Textbook

Figure below shows a photodiode amplifier for measuring low levels of…

Open-Loop OpAmp Circuits

Worksheets - Crystals and Resonators

Determine what the magnitude and polarity of the voltmeter’s…

The Gated S-R Latch

Textbook

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