How to build a Tesla Coil

Basic Electronics {*style: 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". {*style:Maybe you already know some basic electronics and want to test yourself to see exactly how much you do know. *} {*style:Explanation of AC and DC currents. *} {*style: P - I*V *} {*style: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: *} 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. You will also need some electronic parts available from Radio Shack or a good junk box. {*style:Combined resistance of two resistors in parallel: *} Black Brown Red

Servo Database - RC Servo Specs and Reviews 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! By converting the cheap (free) ATX power supplies that can be found in any discarded computer, you can get a phenomenal lab power supply with huge current outputs, short circuit protection, and reasonably tight voltage regulation on the 5V line. On most power supply units (PSUs), the other lines are unregulated. Ad Steps 1Look online or at your local computer store for an ATX computer power supply, or dismantle an old computer and remove the power supply from the case.Ad 2Unplug the power cable from the power supply and turn off the switch on the back (if there is one). 13 Plug the power cable into the back of the power supply and into an AC socket. Tips You can use your power supply 12V output as a car battery charger! Warnings If you suspect the power supply is damaged, do not use it!

Sourcing electronic components for synth-DIY "Not discontinued, you understand,just on a 52-week lead time." —Dan Mills Hardware Eurorack frames AKA Eurocard frames AKA IEC 60297 sub-racks. supermoduul.com have them cheap. Connectors 0.145" / 3.68 mm pitch Molex 1625 series. Male pins Molex 02-06-2103 (Digi-Key WM1000-ND, Farnell 1079887) Receptacle for male pins, 3-way Molex 03-06-2032 (Digi-Key WM1221-ND, Farnell 1593638) Receptacle for male pins, 4-way Molex 03-06-2042 (Digi-Key WM1222-ND, RS 679-4855) Switches Keyboard switches RS 664-581 (Cherry MX1A-A1NN) does not include a keycap, contrary to what the photo on the web site suggests. Passives Capacitors Dielectrics Potentiometers The most common types of shaft are : round, 1/4" (6.35 mm) ; round, 6 mm; "knurled" a.k.a "serrated" a.k.a. Curves a.k.a. laws a.k.a. tapers : the three most common curves are linear, log (a.k.a. One of the best deals there is on pots is the Alpha RV160 knurled shaft carbons. Some people prefer G&H or Song-Huei's 16-mm carbon pots. Beware of Piher pots. Anti-log pots

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. Each type of antenna will eventually have its own page. LAST MODIFIED: Sunday, 23-Jun-2013 12:55:29 PDT Please don't forget to bookmark this valuable electronics tutorial site! Authored by Ian C. Find us on Google+ What are the basics of antennas? Antennas, to quote a friend, are one of life's eternal mysteries. The basic antenna The most basic antenna is called "a quarter wave vertical", it is a quarter wavelength long and is a vertical radiator. This type of antenna relies upon an "artificial ground" of either drooping radials or a car body to act as ground. Antenna Polarisation Antenna Impedance The quarter wave vertical antenna The Yagi antenna

JeeLabs Apple’s Middle finger: It’s Pointed at You Let’s get this clear right off the start: Apple makes some absolutely fantastic products. The issue is not with the quality of their products, but the attitude and manner in which the company operates. They are giving their customers the middle finger, and for some reason the customers are thanking them for it. I make the argument that it doesn’t have to be this way. If we want Apple to stop treating their customers with disrespect, we need to stop praising them for doing so. Apple makes luxury products. Since we have you here, be sure to check out our blog for tips on where to find the best USA online casino. To embed this full infographic (600×7581) select all the text below then hit Ctrl-C to copy. <img src=” by <a href=” Oak Online Casino</a>. Mike Brunson Google Plus

BeagleBoard.org - default Top 10 Things You Can Upgrade with a Little Electronics Hacking it is a skill to do a good solder joint, it comes with LOTS of practice. so most people who rarely do it will ever get good at it. Bingo. Of course, part of the issue is having a soldering iron at the right temp with a properly tinned tip. Newbies aren't using soldering stations but a cheap iron they got at rat shack (You have questions? We have deer-in-the-headlights... erm... answers!). I don't expect to ever master tricky stuff like smts or even multilayer pcbs so I'm not much better then a newbie, anyway - and I totally suck at sweating pipe joints. Ah, well... SMT is actually a bit better than through-hole once you get the hang of it.

IBM1130.org: All about the IBM 1130 Computing System Free-Energy Devices, zero-point energy, and water as fuel AVR Core :: Overview :: OpenCores Details Name: avr_core Created: Nov 5, 2002 Updated: Feb 4, 2014 SVN Updated: Oct 28, 2012 SVN: Browse Latest version: download Statistics: View Other project properties Category: Processor Language: Development status: Stable Additional info: none WishBone Compliant: No License: Description Microcontroller core compatible with one used in AT mega 103 and written in VHDL. Features • Core features: – 32 x 8 general purpose registers – Twenty three interrupt vectors – Supports up to 128 Kb of program and up to 64 Kb of data memory • Peripheral features: – Programmable UART – Two 8-bit Timer/Counters with separate prescalers and PWM – Eight external interrupt sources – Two parallel ports Status The core was tested with several ASM and C programs.

Hard Disk Drive Magnets For Wind Turbines Obtain super strong magnets from old hard disk drives to use in wind turbine alternators home > windThe most expensive parts of a wind turbinealternator are the magnets and the enamelled magnet wire. In a previous article we have introduced cheap and easy to make PVC wind turbine blades. Hard Disk Drive Magnets 50% of the world's neodymium magnets are currently used in computer hard disk drives (HDD) with each HDD typically containing two magnets. Extracting the magnets from an old hard drive is very easy - usually just a small selection of screwdrivers is required. This can be difficult - the easiest way is to put one corner of the backing plate into a bench vice and bend the other corner of the plate using a pair of vice grips. The following short video shows the full process from opening the hard disk drive, extracting the magnets on their backing plates, to removing those backing plates to leave just the magnets ready to be used.WARNING! Neodmium Magnets in Hard Disk Drives wind