Mike's Electric Stuff

Hobby projects - Simple electronic circuits Computer microphones Learn how to interface electret and dynamic microphones to the standard computer sound card. Metal detectors Theory of operation and schematics of the most common metal detectors used today: Very Low Frequency (VLF), Pulse Induction (PI) and Beat-Frequency Oscillator (BFO). Wireless microphone The wireless microphone transmitter can be built in an afternoon with simple, affordable and widely available parts.

Handbook of hardware pinouts, cables schemes and connectors layouts Learn Bil Herd’s DIY Surface Mount Assembly Process You can do your own Surface Mount Technology based PCB assembly with just a handful of tools and some patience. At the heart of my SMT process is stopping to inspect the various steps all while trying to maintain a bit of cleanliness in the process. Surface mount or Surface Mount Technology (SMT) is the modern way to assemble Printed Circuit Boards (PCB) and is what is commonly seen when opening a modern piece of tech. It’s much smaller than the older Through-Hole (TH) technology where the component leads were inserted into holes in PCB, and act we called “stuffing” since we had to stuff the components into the holes. A few specialized tools make this a lot easier, but resourceful hackers will be able to pull together a solder paste stencil jig, vacuum tweezers, and a modified toaster oven with a controller that can follow the reflow profile of the solder paste. Component Size Matters Surface mount package names can be a little bit confusing. Caring for Solder Paste Applying the Solder

Elektroforum The Transistor Lists of Nobel Prizes and Laureates The Transistor Play the Transistor Recycler Game About the game A transistor is made of a solid piece of a semiconductor material and either used as switches, to turn electronic signals on or off – or, as amplifiers. The Nobel Prize The 1956 Nobel Prize in Physics was awarded for the invention of the transistor. Readings Learn about how a transistor functions and try build a replica The Transistor in a Century of Electronics Share this: Share on facebook Share on google_plusone_share Share on twitter More Sharing Services7 Share on email To cite this pageMLA style: "The Transistor". Recommended: The Legacy of Alfred Nobel On 27 November 1895 Alfred Nobel signed his last will in Paris. Play the Blood Typing Game Try to save some patients and learn about human blood types! Unlocking the Secrets of Our Cells Discover the 2012 awarded research on stem cells and cell signalling. Contact E-mail us Press Sitemap A-Z Index Frequently Asked Questions Terms Follow Follow us: Facebook

Catalog of 150 open-spec, community-backed Linux SBCs under $200 Our 2021 catalog of 150 open-spec, maker-oriented SBCs that run Linux or Android provides updated prices and descriptions plus a comparison spreadsheet of major features. The following summaries of 150 community-backed and predominantly open-spec Linux/Android hacker boards under $200 are listed in alpha order. They list specs and lowest available pricing recorded in the last two weeks of December 2020 with products either shipping or available for pre-order with expected ship date by 2Q 2021. Please also check out our introduction article covering the latest community-backed SBC trends (see link below). Alphabetical index: Low-power Arm hacker board classic keeps it fresh with add-onsCompany/project — OlimexProduct pageProcessor — Allwinner A20 (2x Cortex-A7 @ 1GHz); Mali-400 GPUMemory — 1GB DDR3 RAM; opt. 8GB eMMC, 8GB NAND, and 16GB eMMCPrice — $49 (40 Euros); 48 to 60 Euros ($73) for ext. flash versions Arduino returned in 2018 with a reboot of its original, MIPS-based Arduino Yun.

Elektronik und Mikrocontroller Electrcity: History & Science © Matthew Modoono Indoor bolts produced by the world's largest air-insulated Van de Graaff generator spark exciting explorations of lightning, conductors, insulators, electricity, magnetism, and storm safety. Seating is first come, first served. Now Showing Schedule Approximately 20 minutes long See schedule Location Theater of Electricity Find on map Recommended for Grades 3 – 12 and adults Free with Exhibit Halls admission Accessibility: American Sign Language Interpretation Available Upon RequestAssistive Listening Devices Available At Information DeskWheelchair Accessible

Raspberry Pi: Tutorials, Models, How to Get Started With more than 34 million units sold, the Raspberry Pi is not only one of the world’s most popular computers; it’s also one of the most important. Originally designed to help kids learn about technology, this inexpensive single-board system is the leading choice for makers, developers and hobbyists who want to do everything from building industrial robots to setting up retro arcade machines. Whether you’re eight or 80, if you love technology, the Raspberry Pi is made for you. And with models ranging in price from $4 to $75, anyone can afford to buy one. Here’s what you need to know to make the most of Raspberry Pi. Choosing a Model and Getting Started with Raspberry Pi If you don’t own a Pi, you should definitely get one. The Raspberry Pi Pico series of boards (which includes the $6 Raspberry Pi Pico W) carries the Pi name but is a completely different kind of board. For every Pi model, except the Raspberry Pi Pico, you’ll also need: A microSD card of at least 16GB. Tutorials and Support

Soldering Instructions « These are Version 2 soldering instructions for our new green circuit boards. If you have a blue circuit board, please use the instructions located here. In order to assemble the Ultimate Useless Kit you will need a soldering iron, wire-cutter/strippers and a heatgun or lighter/matches for the heatshrink. Our kit is very easy to solder together, it only has 11 electronic parts: Battery Pack Gear Motor Toggle Switch Microswitch Printed Circuit Board Green & Red 3 mm LEDs Two 56 Ohm Resistors Hook-Up Wire Heat Shrink Soldering The Machine: Soldering is so easy there’s a comic book instruction guide called Soldering is Easy that we recommend. If you have never soldered before we highly recommend that you read the above and/or get help from someone with experience before you assemble our kit. Observe All Safety Precautions: wear eye protection. Tip: Helping Hands In the above photo you’ll see various ways of holding parts steady in order to solder them. We don’t recommend using your real hand…

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