This calculator is useful for calculating the luminous flux for LEDs where the angle is known.
PARTS AND MATERIALS 4001 quad NOR gate (Radio Shack catalog #…
PARTS AND MATERIALS Two AAA Batteries Battery Clip (Radio Shack…
An LED resistance calculator is perfect for when you have a single LED and need to know which resistor you should use.
Before the advent of solid-state logic circuits, logical control…
Identify each of these logic gates by name, and complete their…
Schottky diodes Schottky diodes are constructed of a metal-to-N…
PARTS AND MATERIALS 4511 BCD-to-7seg latch/decoder/driver (Radio…
PARTS AND MATERIALS Two AAA Batteries Battery Clip (Radio Shack…
PARTS AND MATERIALS 4017 decade counter/divider (Radio Shack catalog…
In this circuit, the electric motor is supposed to turn on whenever…
PARTS AND MATERIALS Two 6-volt batteries One NPN transistor—models…
PARTS AND MATERIALS Two AAA Batteries Battery Clip (Radio Shack…
PARTS AND MATERIALS Two AAA Batteries Battery Clip (Radio Shack…
What is the purpose of a seven-segment decoder circuit? What is a…
In addition to performing tasks of amplification and switching, tubes…
A technician uses a stroboscope to “freeze” the rotation of a…
So far we know that AC voltage alternates in polarity and AC current…
This is a schematic for a simple VCO: The oscillator is of the RC…
If two coils of wire are brought into close proximity with each other…
If we take three equal resistors and connect one end of each to a…
PARTS AND MATERIALS Several 10 kΩ resistors One 10 kΩ…
Learn About L/R Time Constants It is often perplexing to new students…
A switch can be constructed with any mechanism bringing two conductors…
As with inductors, the ideal capacitor is a purely reactive device,…
A tool designed to compute the values to be used in a T-match Impedance Circuit
Suppose we wanted to build a device that could add two binary bits…
The purpose of the parallel-in/ parallel-out shift register is to…
As an example of using several circuits together, we are going to make…
The electrical resistance of a conductor at any temperature may be…
Don’t just sit there! Build something!! Learning to mathematically…
Diodes can perform switching and digital logic operations. Forward and…
As a first example of useful combinational logic, let’s build a…
Don’t just sit there! Build something!! Learning to mathematically…
Counting practice: count from zero to thirty-one in binary, octal, and…
So far we have been finding Sum-Of-Product (SOP) solutions to logic…
Explain the principle of operation for the particular integrated…
You might have noticed on the table for specific resistances that all…
This calculates values of the inductance, capacitance of an inductor and capacitor used in a Butterworth LC bandpass filter.
Calculate circuit parameters using Ohm's Law
If we connect the output of an op-amp to its inverting input and apply…
PARTS AND MATERIALS High-quality “closed-cup” audio headphones…
Define the following acronyms as they apply to digital logic circuits:…
There are three major kinds of power supplies: unregulated (also…
Don’t just sit there! Build something!! Learning to mathematically…
Don’t just sit there! Build something!! Learning to mathematically…
Don’t just sit there! Build something!! Learning to mathematically…
The peak voltage calculator calculates peak voltage values from the peak-to-peak voltage, RMS voltage, or average voltage.
Because batteries create current flow in a circuit by exchanging…
Suppose I were about to measure an unknown voltage with a manual-range…
Don’t just sit there! Build something!! Learning to mathematically…
PARTS AND MATERIALS Two 6-volt batteries Carbon pencil “lead” for…
PARTS AND MATERIALS Power transformer, 120VAC step-down to 12VAC,…
The electrons of different types of atoms have different degrees of…
