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More on Spectrum Analysis

Textbook

Computerized Fourier analysis, particularly in the form of the FFT…

Time Constant Circuits

Worksheets - Spectrum Analyzers

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

Time Constant Circuits

Worksheets - Spectrum Analyzers

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

Practical Power Factor Correction

Textbook

When the need arises to correct for poor power factor in an AC power…

Bipolar Junction Transistor (BJT) theory

Worksheets - Spectrum Analyzers

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

Basic Circuit Troubleshooting

Worksheets - Spectrum Analyzers

Determine if the light bulb will de-energize for each of the following…

Analog-to-Digital Conversion

Worksheets - Spectrum Analyzers

The circuit shown here is a four-bit analog-to-digital converter…

Digital Logic Signals

Worksheets - Spectrum Analyzers

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

Basic Troubleshooting Strategies

Worksheets - Spectrum Analyzers

A chandelier has five light bulbs in it, and one of them is not…

How to Build a Current Mirror Circuit

Textbook

PARTS AND MATERIALS   Two NPN transistors—models 2N2222 or…

Differential Transistor Amplifiers

Worksheets - Spectrum Analyzers

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

Basic Voltmeter Use

Worksheets - Spectrum Analyzers

What will this voltmeter register when connected to a battery as shown…

Potentiometer as a Rheostat

Textbook

Learning Objectives Rheostat use Wiring a potentiometer as a rheostat…

Rectifier Circuits

Worksheets - Spectrum Analyzers

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

Edge-triggered Latches: Flip-Flops

Textbook

So far, we’ve studied both S-R and D latch circuits with enable…

Counters

Worksheets - Spectrum Analyzers

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

Batteries

Worksheets - Spectrum Analyzers

If I wanted to build a battery-powered electric drill, would it be…

Conductor Ampacity

Textbook

The smaller the cross-sectional area of any given wire, the greater…

Specific Troubleshooting Techniques

Textbook

After applying some of the general troubleshooting tips to narrow the…

AC Metrology

Worksheets - Spectrum Analyzers

In power distribution systems, it is very important to be able to…

Sensitive Audio Detector

Textbook

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

Design Project: Audio Media-Based Signal Generator

Worksheets - Spectrum Analyzers

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

555 Ramp Generator

Textbook

PARTS AND MATERIALS Two 6 volt batteries One capacitor, 470 µF…

Programmable Logic Controllers

Worksheets - Spectrum Analyzers

The Programmable Logic Controller, or PLC, was invented in the late…

Other Waveshapes

Textbook

As strange as it may seem, any repeating, non-sinusoidal waveform is…

Shift Registers: Parallel-in, Serial-out (PISO) Conversion

Textbook

Parallel-in/ serial-out shift registers do everything that the…

Copper Wire Ampacity Table

Textbook

Ampacities of copper wire, in free air at 30o C:…

Electrical Isolation

Textbook

SPICE analysis of Electrical Isolation Aside from the ability to…

Contact “Normal” State and Make/Break Sequence

Textbook

Any kind of switch contact can be designed so that the contacts…

Series and Parallel AC Circuits

Worksheets - Spectrum Analyzers

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

Clamper Circuits

Textbook

The circuits in the figure below are known as clampers or DC…

Class B Audio Amplifier

Textbook

PARTS AND MATERIALS Four 6 volt batteries Dual operational amplifier,…

Linear Computational Circuitry

Worksheets - Spectrum Analyzers

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

Resistor Color Code Calculator and Chart (4-band, 5-band or 6-band)

Tools

A handy tool for reading resistor color code values

R, L and C Summary

Textbook

With the notable exception of calculations for power (P), all AC…

Design Project: Stepper Motor Driver

Worksheets - Spectrum Analyzers

At first it may seem pointless to have the four buffer gates following…

Design Project: Sensitive Microphone Amplifier

Worksheets - Spectrum Analyzers

Identify which direction each potentiometer wiper must move in this…

An Analogy for Ohm’s Law

Textbook

Ohm’s Law also makes intuitive sense if you apply it to the…

Synchronous Counters

Textbook

What is a Synchronous Counter? A synchronous counter, in contrast to…

Complex Voltage and Current Calculations

Textbook

There are circumstances when you may need to analyze a DC reactive…

A Very Simple Circuit

Textbook

Parts and Materials 6-volt battery 6-volt incandescent lamp Jumper…

Ammeter Design

Worksheets - Spectrum Analyzers

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

Introduction to Bipolar Junction Transistors (BJT)

Textbook

The invention of the bipolar transistor in 1948 ushered in a…