A technician uses a stroboscope to “freeze” the rotation of a…
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Don’t just sit there! Build something!! Learning to mathematically…
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In this hands-on electronics experiment, build and test an automated circuit that sequentially flashes 10 LED, and learn about counters, frequency dividers, and switch debouncing.
Textbook
If we were to express the series-connected DC voltages as phasors…
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This calculator is useful for calculating the luminous flux for LEDs where the angle is known.
Tools
What is the purpose of the switch shown in this schematic diagram?
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In this hands-on semiconductor electronics experiment, use an LED as a light-sensitive photodetector and learn how to use a bipolar transistor in a common-emitter amplifier configuration.
Textbook
Suppose we had a simple one-battery, one-lamp circuit controlled by a…
Textbook
In this hands-on electronics experiment, build a red LED flasher with a transistor drive to control the current and learn how to use transistors to provide current gain and how to limit LED current.
Textbook
In this hands-on electronics experiment, you will connect batteries in parallel to power a light and learn the relationship between the individual battery currents and the total system current.
Textbook
This series LED resistance calculator is perfect for when you have a single LED or a number of the same color of LEDs in series and need to know which resistor you should use.
Tools
Don’t just sit there! Build something!! Learning to mathematically…
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Shown here is the schematic symbol for a resistor: What is the purpose…
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Don’t just sit there! Build something!! Learning to mathematically…
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In this hands-on electronics experiment, you will build a red LED flasher and learn a useful application of the versatile 555 timer IC.
Textbook
What does it mean for an object to have an electric charge? Give an…
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In this hands-on electronics experiment, build a multiple LED flasher and learn how to use inductive flyback to generate a voltage pulse that is greater than the supply voltage.
Textbook
Don’t just sit there! Build something!! Learning to mathematically…
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What is the purpose of a seven-segment decoder circuit? What is a…
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In this hands-on electronics experiment, build a blue LED flasher using a 555 timer and learn the basic theory of a voltage doubler using a transistor switch and a capacitor.
Textbook
In this hands-on AC electronics experiment, you will use an automotive alternator to generate three-phase AC voltage and learn how alternators can function as both generators and motors.
Textbook
What does the acronym RF stand form, in reference to radio-related…
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Identify which direction each potentiometer wiper must move in this…
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A very useful tool for observing rotating objects is a strobe light.…
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When analyzing complex series and parallel circuits, it is easy to…
Textbook
Schottky diodes Schottky diodes are constructed of a metal-to-N…
Textbook
As an example of using several circuits together, we are going to make…
Textbook
A calculator designed to compute the VSWR, reflection coefficient, return loss and matching loss in a transmission line
Tools
The R/2R DAC circuit is an alternative to the binary-weighted-input…
Textbook
For extremely high-frequency applications (above 1 GHz), the…
Textbook
Given two lengths of metal wire, which one will have the least…
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What is the difference between DC and AC electricity? Identify some…
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A transistor is a semiconductor device that controls current with the…
Textbook
Programming a circuit simulation with SPICE is much like programming…
Textbook
Counting practice: count from zero to thirty-one in binary, octal, and…
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Wire-by-Number project: simple voltage divider Description: Build a…
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Tables of specific resistance and temperature coefficient of…
Textbook
A circuit with an inductor (L) and capacitor (C) connected in parallel or series will have a resonant frequency at which their impedances are equal. Given two of the three values—inductance, capacitance, or resonant frequency—this tool will calculate the missing third variable.
Tools
A third variation on the counter-DAC-based converter theme is, in my…
Textbook
A calculator for solving the capacitance, reactance, and admittance of a capacitor.
Tools
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