Electromechanical watt-hour meters use an aluminum disk that is spun…
Don’t just sit there! Build something!! Learning to mathematically…
PARTS AND MATERIALS 4017 decade counter/divider (Radio Shack catalog…
An LED resistance calculator is perfect for when you have a single LED and need to know which resistor you should use.
PARTS AND MATERIALS Two AAA Batteries Battery Clip (Radio Shack…
What does it mean for an object to have an electric charge? Give an…
Don’t just sit there! Build something!! Learning to mathematically…
Shown here is the schematic symbol for a resistor: What is the purpose…
PARTS AND MATERIALS Two 6-volt batteries One NPN transistor—models…
It is fairly important to use large value resistors (10 MΩ works…
If we were to express the series-connected DC voltages as phasors…
What is the purpose of a seven-segment decoder circuit? What is a…
Don’t just sit there! Build something!! Learning to mathematically…
This calculator is useful for calculating the luminous flux for LEDs where the angle is known.
PARTS AND MATERIALS Two AAA Batteries Battery Clip (Radio Shack…
Suppose we had a simple one-battery, one-lamp circuit controlled by a…
Schottky diodes Schottky diodes are constructed of a metal-to-N…
What is the purpose of the switch shown in this schematic diagram?
A technician uses a stroboscope to “freeze” the rotation of a…
PARTS AND MATERIALS Two AAA Batteries Battery Clip (Radio Shack…
PARTS AND MATERIALS High-quality “closed-cup” audio headphones…
Don’t just sit there! Build something!! Learning to mathematically…
Impedance Matching Because transformers can step voltage and current…
During the early development of telephone technology, a unit was…
Though it may seem strange to cover the elementary topic of electrical…
This calculator helps you compute the characteristic impedance of an asymmetric stripline
Shown here is a simplified representation of an atom: the smallest…
Feedback is a fascinating engineering principle. It can turn a rather…
SPICE analysis of Electrical Isolation Aside from the ability to…
Don’t just sit there! Build something!! Learning to mathematically…
In the simplest terms you can think of, define what an electrical…
This tool is designed to calculate the maximum distance (range) that a radar can detect
PARTS AND MATERIALS 555 timer IC (Radio Shack catalog # 276-1723) One…
A modern alternative to sending (binary) digital information via…
Don’t just sit there! Build something!! Learning to mathematically…
So far, we’ve studied both S-R and D latch circuits with enable…
Ladder diagrams are specialized schematics commonly used to document…
The half-adder is extremely useful until you want to add more that…
If we connect the output of an op-amp to its inverting input and apply…
