Since three-phase is used so often for power distribution systems, it…
The interlock contacts installed in the previous section’s motor…
PARTS AND MATERIALS One 12AX7 dual triode vacuum tube Two power…
Just as devices have been made to measure certain physical quantities…
Most ohmmeters of the design shown in the previous section utilize a…
PARTS AND MATERIALS 4001 quad NOR gate (Radio Shack catalog #…
So far, we’ve observed simulations of transformers where the…
Another variation on a theme of bistable multivibrators is the J-K…
Generators used in battery-charging systems must be regulated so as to…
Don’t just sit there! Build something!! Learning to mathematically…
Calculate the voltage output by the secondary winding of a transformer…
Though it may seem strange to cover the elementary topic of electrical…
Electromechanical watt-hour meters use an aluminum disk that is spun…
Counting practice: count from zero to thirty-one in binary, octal, and…
A bistable multivibrator has two stable states, as indicated by the…
Don’t just sit there! Build something!! Learning to analyze relay…
Every meter impacts the circuit it is measuring to some extent, just…
Normally, the rotor windings of a wound rotor induction motor are…
What is the purpose of the switch shown in this schematic diagram?
The Q factor of a series inductive circuit is given by the following…
Pulse Width Modulation (PWM) uses digital signals to control power…
The variable reluctance motor is based on the principle that an…
As an instructor of electronics, I am called upon frequently to help…
PARTS AND MATERIALS Calculator (or pencil and paper for doing…
How is it possible to electrically measure the torque output by a…
“I consider that I understand an equation when I can predict the…
Let’s take the following example circuit and analyze it: …
PARTS AND MATERIALS Calculator (or pencil and paper for doing…
Limitations of Electromechanical Relays As versatile as…
Inductive Reactance Capacitive Reactance …
The job of a technician frequently entails…
So far, we’ve explored tubes which are totally…
When a transistor is in the fully-off state (like an open switch), it…
This tool calculates the cutoff frequency of a rectangular waveguide
Transformers with Multiple Secondaries Transformers are very versatile…
What Is a R/2nR DAC Circuit? The R/2nR DAC circuit, otherwise known as…
Pulse Width Modulation (PWM) uses digital signals to control power…
Define the following acronyms as they apply to digital logic circuits:…
PARTS AND MATERIALS Operational amplifier, model TL082 recommended…
It is fairly important to use large value resistors (10 MΩ works…
This calculator will help compute the inductance of a length of wire.
Don’t just sit there! Build something!! Learning to mathematically…
