Don’t just sit there! Build something!! Learning to analyze digital…
Varicap or varactor diodes A variable capacitance diode is known as a…
The wires between the tank and the monitoring location is called…
Whenever there is a mismatch of impedance between transmission line…
What is a harmonic frequency? If an oscillator circuit outputs a…
(a) Crystal radio. (b) Modulated RF at antenna. (c) Rectified RF at…
Pulse Width Modulation (PWM) uses digital signals to control power…
Just as devices have been made to measure certain physical quantities…
Impedance Matching Because transformers can step voltage and current…
This is a schematic for a simple VCO: The oscillator is of the RC…
In very simple, qualitative terms, rate the impedance of capacitors…
With BogusBus, our signals were very simple and straightforward: each…
One of the more fascinating applications of electricity is in the…
Aside from the issues of the physical network (signal types and…
A waveguide is a special form of transmission line consisting of a…
A modern method of electrical power control involves inserting a…
This calculator computes the power received by an antenna using Friis formula
What shape of voltage waveform would you expect to measure (using an…
What does the acronym RF stand form, in reference to radio-related…
What is Attenuators? Attenuators are passive devices. It is…
What is Conductance? In the study of DC circuits, the student of…
What is Rectification? Now we come to the most popular application of…
This calculator computes the noise figure and noise temperature in a system
Standing waves at the resonant frequency points of an open- or…
A calculator for computing the inductance of a coaxial cable.
A helpful tool for calculating the impedance of a coaxial cable.
A Link Budget puts into account all gains and losses a signal goes through in a system as it is transmitted. The calculator calculates the power of the received signal given amplifier and antenna gains, and medium loss.
Just as devices have been made to measure certain physical quantities…
(a) Crystal radio. (b) Modulated RF at antenna. (c) Rectified RF at…
This tool calculates the cutoff frequency of a rectangular waveguide
Pulse Width Modulation (PWM) uses digital signals to control power…
A tool designed to calculate the power density of an antenna
Resonance in a Tank Circuit A condition of resonance will be…
The discovery of the relationship between magnetism and electricity…
Impedance Matching Because transformers can step voltage and current…
The Maximum Power Transfer Theorem is not so much a means of analysis…
An ideal transistor would show 0% distortion in amplifying a signal.…
Define what noise means, in the electrical sense of the word. How does…
This tool is designed to calculate the inductance of two parallel wires
In the chapter on mixed-frequency signals, we explored the concept of…
Bipolar transistors are constructed of a three-layer semiconductor…
Given two lengths of metal wire, which one will have the least…
Unijunction transistor: Although a unijunction transistor is not a…
PARTS AND MATERIALS Operational amplifier, model 1458 or 353…
Let’s take the same components for our series example circuit…
A helpful analogy for understanding divided feedback amplifier…
Decibel as Absolute Unit of Power It is also possible to use the…
A calculator for solving the capacitance, reactance, and admittance of a capacitor.
Another strategy for addressing the problem of secondary electrons…
Don’t just sit there! Build something!! Learning to mathematically…
Valence: The electrons in the outermost shell, or valence shell, are…
The nonlinearity of material permeability may be graphed for better…
Don’t just sit there! Build something!! Learning to mathematically…
PARTS AND MATERIALS Audio detector with headphones Electromagnet coil…
Don’t just sit there! Build something!! Learning to mathematically…
This calculator helps you compute the inductance of a rectangle loop.
With this lesson, I hope to avoid a common mistake found in…
In designing digital circuits, the designer often begins with a truth…
Solving for x in a given polynomial equation “ax2 + bx + c…
