background preloader

Basic Electronics

Basic Electronics
{*style:<b> Get a quick start by scrolling down to the introduction below this menu table. Basic Electronics - Course Table You are at the best, free online "Basic Electronics Course". Just read the brief blocks of text, view the videos, and check out some of the screened internet links. This is the easiest, fastest way to learn basic electronics. {*style:<b><b>Maybe you already know some basic electronics and want to test yourself to see exactly how much you do know. </b></b>*} {*style:<b>Explanation of AC and DC currents. </b>*} {*style:<b><b><b> P - I*V </b></b></b>*} {*style:<b>Watch the video . If you don't have a clue as to what electrical current and voltage are - read on. DC Theory Part 1 - DC Theory part 2 {*style:<b> </b>*} More book recommendations. There is another (and less expensive and practical) method of learning basic electronics. It is hands-on by doing simple projects. Get the MAKE: Electronics (Learn By Discovery) book below. {*style:<b><b>Combined resistance of <b><b>Red </b></b>

http://www.101science.com/Radio.htm

Related:  Electronics (Электроника)

Homo ludens electronicus My interest in electronics started when I was 12 years old, although I had built electric devices (lighting systems, flashlights, solenoids, even a motor) much earlier. At age 12 I started the real thing: Radios, sound effect generators, light games, etc. This obsession of building things led to a career in electronics, but also it has become my most interesting hobby. Supernova A supernova (abbreviated SN, plural SNe after "supernovae") is a stellar explosion that is more energetic than a nova. It is pronounced /ˌsuːpəˈnoʊvə/ with the plural supernovae /ˌsuːpəˈnoʊviː/ or supernovas. Supernovae are extremely luminous and cause a burst of radiation that often briefly outshines an entire galaxy, before fading from view over several weeks or months. During this interval a supernova can radiate as much energy as the Sun is expected to emit over its entire life span.[1] The explosion expels much or all of a star's material[2] at a velocity of up to 30,000 km/s (10% of the speed of light), driving a shock wave[3] into the surrounding interstellar medium. This shock wave sweeps up an expanding shell of gas and dust called a supernova remnant.

How to Convert a Computer ATX Power Supply to a Lab Power Supply Edit Article Edited by Abizarl, Krystle C., Jack Herrick, Vertent and 42 others Computer power supplies cost around US$30, but lab power supplies can run you $100 or more! Operational Amplifier Low Pass Filter Circuit Navigation:: Home >> Circuits and design >> this page -a summary of operational amplifier or op-amp active low pass filter circuitry Op-amp circuits include: • Operational amplifier circuits • Inverting op-amp • Non-inverting op-amp • Op-amp high pass filter • Op-amp low pass filter • Op-amp bandpass filter • Op-amp variable gain amplifier • Op-amp notch filter circuits • Operational amplifier multivibrator • Op-amp bistable • Op-amp comparator • Op-amp Schmitt trigger • Op-amp integrator • Op-amp differentiator Operational amplifiers lend themselves to being used for active filter circuits, including a low pass filter circuit.

A PC The Size of your Phone Jack? Well, maybe it's a bit bigger than a phone jack, but this "desktop computer" is built to be installed in a wall, with cords for the mouse, the keyboard, the speakers and the monitor running out of it. And at peak use, it only draws about five watts of power. Absolutely remarkable! The manufacturers of the Jack PC are calling it a "desktop" but it isn't quite what we think of as a computer. For one thing, it doesn't have a hard drive. techlib.com Electronic Circuits Also, use the search box at the bottom of the home page. Audio Circuits Audio Amplifier CircuitsDirectional MicrophoneAGC Dynamic MicrophoneVery Low Noise AmplifierInduction Receiver White and Pink (1/F) Noise SourceNoisemaking Circuits (police siren and doorbell chime) Telephone Circuits Computer Data Logging Circuits

Star For at least a portion of its life, a star shines due to thermonuclear fusion of hydrogen into helium in its core, releasing energy that traverses the star's interior and then radiates into outer space. Once the hydrogen in the core of a star is nearly exhausted, almost all naturally occurring elements heavier than helium are created by stellar nucleosynthesis during the star's lifetime and, for some stars, by supernova nucleosynthesis when it explodes. Near the end of its life, a star can also contain degenerate matter. Astronomers can determine the mass, age, metallicity (chemical composition), and many other properties of a star by observing its motion through space, luminosity, and spectrum respectively. The total mass of a star is the principal determinant of its evolution and eventual fate.

antenna basics Antennas, to quote a friend, are one of life's eternal mysteries. "All I'm totally certain of is that any antenna is better than no antenna and the antenna should preferably erected as high and be as long as is possible or desirable". Here we will discuss the very basics of antennas including the the amazing terminated tilted folded dipole antenna. Super Precision Gyroscope (without gimbals) - From Gyroscope.com The Super Precision Gyroscope has been designed and built to the highest precision from the very start, made from solid brass with a light-weight aluminium frame. Carefully chosen stainless-steel miniature ball bearings allow it to run smoothly and almost silently for an amazingly long time. The gyroscope comes with a number of attachments allowing numerous configurations to perform scientific, educational or simply mesmerising experiments. The gyroscope comes with 2 x 50 mm long stainless steel extension rods, 2 x ball ends, 1 x slotted end. The rods when screwed together will extend 100mm, they can be screwed in other positions to create various experiments.

Electrical / Electronics Conversions Formulas & References - RF Cafe Throughout the years as an engineer, I have needed to research topics on engineering, physics, chemistry, mechanics, mathematics, etc. The Internet has made the job infinitely simpler, with the caveat that you have to be careful of your sources. Anyone can post anything on the Internet without peer review, and errors are rampant.

Related:  TutorialsElectrical EngineeringUseful Elec Eng Sitesfabiandarmanin