Categories

Radio Circuits

Textbook

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

OpAmp Oscillator Circuits

Worksheets - Crystals and Resonators

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

Series and Parallel AC Circuits

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Oscillator Circuits

Worksheets - Crystals and Resonators

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Time Constant Circuits

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Signal Modulation

Worksheets - Crystals and Resonators

A modern method of electrical power control involves inserting a…

Time Constant Calculations

Worksheets - Crystals and Resonators

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Switched Capacitor Circuitry

Worksheets - Crystals and Resonators

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 Hysteretic Oscillator

Textbook

PARTS AND MATERIALS One 9V Battery Battery Clip (Radio Shack catalog #…

Resonance

Worksheets - Crystals and Resonators

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

Positive Feedback OpAmp Circuits

Worksheets - Crystals and Resonators

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

Time Constant Circuits

Worksheets - Crystals and Resonators

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

Low-pass Filters

Textbook

By definition, a low-pass filter is a circuit offering easy passage to…

Voltage Divider Circuits

Worksheets - Crystals and Resonators

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

Creating Custom Calibration Resistances

Textbook

Often in the course of designing and building electrical meter…

Electromagnetic Induction

Textbook

While Oersted’s surprising discovery of electromagnetism paved…

Voltage Divider Circuits

Textbook

Let’s analyze a simple series circuit and determine the voltage…

Insulator Breakdown Voltage

Textbook

The atoms in insulating materials have very tightly-bound electrons,…

Resistors Types

Textbook

These are the most common types of resistors available. Resistors…

Series-Parallel DC Circuits

Worksheets - Crystals and Resonators

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

Power Conversion Circuits

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Regulated Power Sources

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Band Theory of Solids

Textbook

Quantum physics describes the states of electrons in an atom according…

Integrator

Textbook

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

Oscillator Circuits

Worksheets - Crystals and Resonators

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

Voltage Divider Calculator

Tools

The voltage divider is a circuit used to create a voltage less than or equal to the input voltage.

Clipper and Clamper Circuits

Worksheets - Crystals and Resonators

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

Series and Parallel Inductors

Textbook

When inductors are connected in series, the total inductance is the…

Rheostat Range Limiting

Textbook

PARTS AND MATERIALS Several 10 kΩ resistors One 10 kΩ…

High-pass Filters

Textbook

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

Inverting and Noninverting OpAmp Voltage Amplifier Circuits

Worksheets - Crystals and Resonators

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

Parallel Resistor-Capacitor Circuits

Textbook

Using the same value components in our series example circuit, we will…

The Common-emitter Amplifier

Textbook

At the beginning of this chapter, it illustrates how transistors could…

Voltage Divider

Textbook

PARTS AND MATERIALS Calculator (or pencil and paper for doing…

Derivative of a Constant

Textbook

    (“c” being a constant)   RELATED…

Ammeter Design

Textbook

Ammeters Measure Electrical Current A meter designed to measure…

Sound Cancellation

Textbook

PARTS AND MATERIALS Low-voltage AC power supply Two audio speakers…

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

Tools

A handy tool for reading resistor color code values

Characteristic Impedance

Worksheets - Crystals and Resonators

Note the “50 ohm” rating printed on the jacket of the cable. What…

Decimal versus Binary Numeration

Textbook

Let’s count from zero to twenty using four different kinds of…

High Voltage Ohmmeters

Textbook

Most ohmmeters of the design shown in the previous section utilize a…

Power in Electric Circuits

Textbook

In addition to voltage and current, there is another important…

Current Signal Systems

Textbook

Current Source It is possible through the use of electronic amplifiers…

Audio Oscillator

Textbook

PARTS AND MATERIALS Two 6-volt batteries Three NPN…

Integrator

Textbook

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

The Command-line Interface

Textbook

If you’ve used DOS or UNIX operating systems before in a…

Superconducting Devices

Textbook

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

Review of R, X, and Z (Resistance, Reactance and Impedance)

Textbook

Before we begin to explore the effects of resistors, inductors, and…

Positive Feedback OpAmp Circuits

Worksheets - Crystals and Resonators

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

AC Negative Feedback OpAmp Circuits

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Variable Inductor

Textbook

PARTS AND MATERIALS Paper tube, from a toilet-paper roll Bar of iron…

Trigonometry for AC Circuits

Worksheets - Crystals and Resonators

Identify which trigonometric functions (sine, cosine, or tangent) are…