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Decibel Measurements

Worksheets - Microphones

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

Absolute dB scales

Textbook

Decibel as Absolute Unit of Power It is also possible to use the…

Mixed-Frequency Signals

Worksheets - Microphones

What is a harmonic frequency? If an oscillator circuit outputs a…

Practical Considerations - Transformers

Textbook

Power Capacity As has already been observed, transformers must be well…

Sensitive Voltage Detector

Textbook

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

Fundamentals of Radio Communication

Worksheets - Microphones

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

Basic Electromagnetism and Electromagnetic Induction

Worksheets - Microphones

When lightning strikes, nearby magnetic compass needles may be seen to…

Performance-Based Assessments for Semiconductor Circuit Competencies

Worksheets - Microphones

Open-Loop OpAmp Circuits

Worksheets - Microphones

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

Decibels

Textbook

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

Impedance

Worksheets - Microphones

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

Square Wave Signals

Textbook

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

Oscillator Circuits

Worksheets - Microphones

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

Impedance Matching With Transformers

Worksheets - Microphones

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

The “Operational” Amplifier

Textbook

Long before the advent of digital electronic technology, computers…

Design Project: Audio Power Amplifier

Worksheets - Microphones

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

Series-Parallel Combination AC Circuits

Worksheets - Microphones

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

Four-Channel Audio Mixer

Worksheets - Microphones

A very common misconception students have about potentiometers is the…

Op-Amp Practical Considerations

Textbook

Real operational amplifiers have some imperfections compared to an…

Input and Output Coupling

Textbook

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

pH Measurement

Textbook

A very important measurement in many liquid chemical processes…

The Quadratic Formula

Textbook

Solving for x in a given polynomial equation “ax2 + bx + c…

Simple Series Resonance

Textbook

A similar effect happens in series inductive/capacitive circuits. When…

DC Transducers

Worksheets - Microphones

Research and describe what the Hall effect is, and list some practical…

DC Motor Control Circuits

Worksheets - Microphones

How is it possible to electrically measure the torque output by a…

AC Negative Feedback OpAmp Circuits

Worksheets - Microphones

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

Friis Transmission Calculator

Tools

This calculator computes the power received by an antenna using Friis formula

Resistance

Textbook

The circuit in the previous section is not a very practical one. In…

Elementary Amplifier Theory

Worksheets - Microphones

Fundamentally, an amplifier is a device that takes in a low-power…

Microprocessor Programming

Worksheets - Microphones

What is the difference between a JMP (“jump”) instruction and a…

Synchronous Condenser

Textbook

Synchronous motors load the power line with a leading power factor.…

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.

Integrator

Textbook

PARTS AND MATERIALS Four 6 volt batteries Operational amplifier, model…

Active Loads in Amplifier Circuits

Worksheets - Microphones

We know that the current in a series circuit may be calculated with…

Bit Grouping

Textbook

The singular reason for learning and using the binary numeration…

Introduction to Conductance and Conductors

Textbook

By now you should be well aware of the correlation between electrical…

Copper Wire Gauge Table

Textbook

Solid Cooper Wire Table Size Diameter (inches) Cross-sectional area…

SPICE Quirks

Textbook

“Garbage in, garbage out.” —Anonymous SPICE is a…

Time Constant Calculations

Worksheets - Microphones

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

CMOS 555 Long Duration Blue LED Flasher

Textbook

PARTS AND MATERIALS Two AAA Batteries Battery Clip (Radio Shack…