Signalspielplatz<p>For our transmitters, we need an operating voltage of 12V.</p><p>Thank you to our friends from DL0TUH (amateur radio station of Hamburg University of Technology) for lending us two modified computer PSUs for EasterHegg!</p><p><a href="https://mastodon.social/tags/EasterHegg" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>EasterHegg</span></a> <a href="https://mastodon.social/tags/EH22" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>EH22</span></a> <a href="https://mastodon.social/tags/EasterHegg22" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>EasterHegg22</span></a> <a href="https://mastodon.social/tags/EasterHegg2025" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>EasterHegg2025</span></a> <a href="https://mastodon.social/tags/POCSAG" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>POCSAG</span></a> <a href="https://mastodon.social/tags/pager" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>pager</span></a> <a href="https://mastodon.social/tags/radio" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>radio</span></a> <a href="https://mastodon.social/tags/ChaosPager" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>ChaosPager</span></a> <a href="https://mastodon.social/tags/PowerSupply" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>PowerSupply</span></a> <a href="https://mastodon.social/tags/PowerSupplyUnit" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>PowerSupplyUnit</span></a> <a href="https://mastodon.social/tags/TUHH" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>TUHH</span></a> <a href="https://mastodon.social/tags/TUHamburg" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>TUHamburg</span></a> <a href="https://mastodon.social/tags/DL0TUH" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>DL0TUH</span></a></p>
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RainSMediaRadio<p>Nigerian Government Announces Ambitious Plan to Install 75,000 Electricity Meters in April and 200,000 Units in May <a href="https://www.rainsmediaradio.com/2025/04/nigerian-government-announces-ambitious.html?utm_source=dlvr.it&utm_medium=mastodon" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">rainsmediaradio.com/2025/04/ni</span><span class="invisible">gerian-government-announces-ambitious.html?utm_source=dlvr.it&utm_medium=mastodon</span></a> Follow, Like & Share <a href="https://mastodon.social/tags/Nigeria" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Nigeria</span></a> <a href="https://mastodon.social/tags/Electricity" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Electricity</span></a> <a href="https://mastodon.social/tags/PowerSupply" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>PowerSupply</span></a> <a href="https://mastodon.social/tags/MeteringInitiative" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>MeteringInitiative</span></a> <a href="https://mastodon.social/tags/RenewableEnergy" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>RenewableEnergy</span></a></p>
The Oasis BBS<p>Rebuilding a Safer Commodore 64 Wedge Power Supply<br><a href="https://techhub.social/tags/Commodore64" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Commodore64</span></a> <a href="https://techhub.social/tags/RetroComputing" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>RetroComputing</span></a> <a href="https://techhub.social/tags/C64" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>C64</span></a> <a href="https://techhub.social/tags/VintageComputers" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>VintageComputers</span></a> <a href="https://techhub.social/tags/PowerSupply" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>PowerSupply</span></a> <a href="https://techhub.social/tags/DIYElectronics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>DIYElectronics</span></a> <a href="https://techhub.social/tags/Retrogaming" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Retrogaming</span></a> <a href="https://techhub.social/tags/PCBDesign" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>PCBDesign</span></a> <a href="https://techhub.social/tags/HomebrewHardware" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>HomebrewHardware</span></a><br><a href="https://theoasisbbs.com/rebuilding-a-safer-commodore-64-wedge-power-supply/?feed_id=2347&_unique_id=67dd63c01e2ff" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">theoasisbbs.com/rebuilding-a-s</span><span class="invisible">afer-commodore-64-wedge-power-supply/?feed_id=2347&_unique_id=67dd63c01e2ff</span></a></p>
IT News<p>Turning Down the Noise on SMPS - On paper, electricity behaves in easy-to-understand, predictable ways. That’s most... - <a href="https://hackaday.com/2025/03/17/turning-down-the-noise-on-smps/" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">hackaday.com/2025/03/17/turnin</span><span class="invisible">g-down-the-noise-on-smps/</span></a> <a href="https://schleuss.online/tags/switchmodepowersupply" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>switchmodepowersupply</span></a> <a href="https://schleuss.online/tags/capacitance" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>capacitance</span></a> <a href="https://schleuss.online/tags/electronics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>electronics</span></a> <a href="https://schleuss.online/tags/powersupply" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>powersupply</span></a> <a href="https://schleuss.online/tags/transistor" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>transistor</span></a> <a href="https://schleuss.online/tags/techhacks" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>techhacks</span></a> <a href="https://schleuss.online/tags/diode" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>diode</span></a> <a href="https://schleuss.online/tags/noise" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>noise</span></a> <a href="https://schleuss.online/tags/smps" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>smps</span></a></p>
Rommudoh<p>I recently rediscovered that I had a dual rail <a href="https://social.tchncs.de/tags/powersupply" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>powersupply</span></a> in my stash that I intended to use for my <a href="https://social.tchncs.de/tags/diysynth" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>diysynth</span></a> stuff. It takes AC input and outputs variable positive and negative DC voltages.<br>So, I built a nice <a href="https://social.tchncs.de/tags/enclosure" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>enclosure</span></a> for it. It fits very tightly, but looks rather nice.<br>When testing it with my 12 Volt AC transformer, I could only get up to about +/-8 Volts. So, I need a bigger input voltage for my +/-12 Volt needs.<br>I use <a href="https://social.tchncs.de/tags/GX16" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>GX16</span></a> for output and normal barrel jack for input.<br><a href="https://social.tchncs.de/tags/PSU" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>PSU</span></a> <a href="https://social.tchncs.de/tags/diy" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>diy</span></a></p>
Daniele Verducci 🧉Woke up, prepared a <a class="hashtag" href="https://social.ichibi.eu/tag/mate" rel="nofollow noopener noreferrer" target="_blank">#mate</a> and went to my temporary <a class="hashtag" href="https://social.ichibi.eu/tag/lab" rel="nofollow noopener noreferrer" target="_blank">#lab</a>. And passed the last 10 minutes staring at this huge <a class="hashtag" href="https://social.ichibi.eu/tag/mess" rel="nofollow noopener noreferrer" target="_blank">#mess</a> trying to decide if clean it up, burning precious time, or start working on something anyway 😅<br>Also, I miss a lot of instruments here, I never took out the <a class="hashtag" href="https://social.ichibi.eu/tag/bench" rel="nofollow noopener noreferrer" target="_blank">#bench</a> <a class="hashtag" href="https://social.ichibi.eu/tag/powersupply" rel="nofollow noopener noreferrer" target="_blank">#powersupply</a> and I'm using an <a class="hashtag" href="https://social.ichibi.eu/tag/usbc" rel="nofollow noopener noreferrer" target="_blank">#usbc</a> negotiator to have some voltages... ugly.<br>I'd really like to have a real <a class="hashtag" href="https://social.ichibi.eu/tag/bench" rel="nofollow noopener noreferrer" target="_blank">#bench</a> where I can leave all the things mounted, connected and organized.
Bryan King<p><strong>Basic Electronics for the Amateur Radio Operator: What You Need to Know for Your Technician License</strong></p><p><em>1,003 words, 5 minutes read time.</em></p><p>If you’re preparing for the <strong>Amateur Radio Technician License Exam</strong>, understanding basic electronics is a must. While you don’t need to be an electrical engineer, the exam includes fundamental concepts like <strong>Ohm’s Law, circuits, components, and RF safety</strong>. This guide will walk you through the essential topics, ensuring you’re ready for the test and your first steps as a ham radio operator.</p><p><strong><strong>Understanding Electricity: The Basics for Amateur Radio</strong></strong></p><p>Electricity is the movement of electrons through a conductor, like a wire. Three key electrical properties define how electricity behaves:</p><ul><li><strong>Voltage (V)</strong> is the force that pushes electrons through a circuit. It’s measured in <strong>volts (V)</strong>.</li><li><strong>Current (I)</strong> is the flow of electrons, measured in <strong>amperes (A)</strong>.</li><li><strong>Resistance (R)</strong> opposes the flow of electricity and is measured in <strong>ohms (Ω)</strong>.</li></ul><p>These three are tied together by <strong>Ohm’s Law</strong>, a fundamental equation in electronics:</p><p><strong>V=I×R</strong></p><p>This means if you know any two values, you can calculate the third. Understanding this equation is critical for both the exam and real-world troubleshooting.</p><p><strong><strong>Direct Current (DC) vs. Alternating Current (AC)</strong></strong></p><p>Electricity comes in two forms:</p><ul><li><strong>Direct Current (DC)</strong> flows in one direction. Batteries and solar panels produce DC.</li><li><strong>Alternating Current (AC)</strong> changes direction many times per second. Household electricity is AC because it’s more efficient for transmission over long distances.</li></ul><p>For amateur radio, most equipment runs on <strong>DC power</strong>, but you’ll also need to understand AC because <strong>radio signals are alternating currents that oscillate at high frequencies</strong>.</p><p><strong><strong>Essential Electronic Components and Their Functions</strong></strong></p><p>Several key electronic components appear on the Technician Exam. Here’s what they do:</p><ul><li><strong>Resistors</strong> limit current flow.</li><li><strong>Capacitors</strong> store and release energy, often used in filtering circuits.</li><li><strong>Inductors</strong> store energy in magnetic fields and are important in tuning circuits.</li><li><strong>Diodes</strong> allow current to flow in only one direction, useful in rectifier circuits that convert AC to DC.</li><li><strong>Transistors</strong> act as switches and amplifiers in radio circuits.</li></ul><p>Understanding these basics helps you answer questions about circuit behavior and troubleshooting.</p><p><strong><strong>Series and Parallel Circuits</strong></strong></p><p>Circuits are made up of components arranged in either <strong>series</strong> or <strong>parallel</strong>:</p><ul><li>In a <strong>series circuit</strong>, current flows through all components one after another. The same current passes through each, but the voltage is divided.</li><li>In a <strong>parallel circuit</strong>, components share the same voltage, but the current divides among them.</li></ul><p>For the exam, you should know how voltage, current, and resistance behave in each type of circuit. For example, <strong>total resistance in a series circuit is the sum of all resistances</strong>, while in parallel circuits, total resistance is lower than the smallest individual resistor.</p><p><strong><strong>Basic AC Concepts and Frequency</strong></strong></p><p>Radio waves are <strong>AC signals</strong> that oscillate at different frequencies. <strong>Frequency (f)</strong> is measured in <strong>hertz (Hz)</strong> and tells us how many times per second the wave changes direction. One <strong>kilohertz (kHz)</strong> is 1,000 Hz, and one <strong>megahertz (MHz)</strong> is 1,000,000 Hz.</p><p>Ham radios operate in different frequency bands, such as:</p><ul><li><strong>VHF (Very High Frequency):</strong> 30 MHz – 300 MHz (e.g., 2-meter band)</li><li><strong>UHF (Ultra High Frequency):</strong> 300 MHz – 3 GHz (e.g., 70-centimeter band)</li></ul><p>Higher frequencies allow for <strong>shorter antennas</strong> and are good for local communication, while lower frequencies travel further.</p><p><strong><strong>Modulation: How We Send Information Over Radio Waves</strong></strong></p><p>Modulation is how a radio wave (carrier wave) carries information. The Technician Exam covers three main types:</p><ul><li><strong>Amplitude Modulation (AM):</strong> The signal strength (amplitude) changes with the voice signal.</li><li><strong>Frequency Modulation (FM):</strong> The frequency of the wave changes to encode information. FM is more resistant to noise and is commonly used in VHF and UHF bands.</li><li><strong>Single Sideband (SSB):</strong> A variation of AM that uses less bandwidth and is more efficient for long-distance communication.</li></ul><p>Knowing these helps when selecting modes for different types of contacts.</p><p><strong><strong>Power, Batteries, and Safety</strong></strong></p><p>Most ham radios run on <strong>12V DC power sources</strong>, such as batteries or regulated power supplies. It’s important to understand:</p><ul><li><strong>Battery safety</strong>: Overcharging or short-circuiting batteries (especially lithium-ion) can be dangerous.</li><li><strong>Fuse protection</strong>: Many radios have built-in fuses to prevent excessive current draw.</li></ul><p>Another key topic on the test is <strong>RF exposure safety</strong>. High-power transmissions can generate strong <strong>radio frequency (RF) radiation</strong>, which may cause health risks. To minimize exposure:</p><ul><li>Maintain a safe distance from transmitting antennas.</li><li>Use the lowest power necessary for effective communication.</li><li>Follow <strong>FCC RF exposure limits</strong> for your frequency and power level.</li></ul><p><strong><strong>Ohm’s Law in Real-World Ham Radio Applications</strong></strong></p><p>A common exam question might involve calculating current or voltage using Ohm’s Law. For example:</p><p><strong>Question:</strong> If a radio operates at 12V and draws 2A of current, what is the resistance?</p><p>Using Ohm’s Law:</p><a href="https://bdking71.wordpress.com/wp-content/uploads/2025/02/screenshot-from-2025-02-12-15-36-53.png" rel="nofollow noopener noreferrer" target="_blank"></a><p>Understanding these calculations can help with troubleshooting and designing circuits.</p><p><strong><strong>Final Thoughts: Studying for the Exam and Beyond</strong></strong></p><p>The <strong>Technician License Exam</strong> covers these topics, but learning electronics doesn’t stop there. Once licensed, you’ll continue exploring concepts like <strong>antenna design, signal propagation, and digital communication</strong>.</p><p>Great resources for studying include:</p><ul><li><strong>ARRL’s Technician Class License Manual</strong>: The official guide with explanations and practice questions.</li><li><strong>HamStudy.org</strong>: Free practice tests and flashcards.</li><li><strong>QRZ.com Practice Exams</strong>: Simulated tests with real exam questions.</li></ul><p>By mastering these <strong>basic electronics concepts</strong>, you’ll be well on your way to passing the exam and starting your journey in amateur radio. Keep practicing, get hands-on experience, and soon, you’ll be making contacts on the air!</p> <p>D. Bryan King</p> <p><strong>Sources</strong></p><ul><li><a href="https://www.arrl.org/" rel="nofollow noopener noreferrer" target="_blank">American Radio Relay League (ARRL) – Official Site</a></li><li><a href="https://www.fcc.gov/wireless/bureau-divisions/mobility-division/amateur-radio-service" rel="nofollow noopener noreferrer" target="_blank">FCC Amateur Radio Service – Licensing and Regulations</a></li><li><a href="https://www.qrz.com/" rel="nofollow noopener noreferrer" target="_blank">QRZ.com – Amateur Radio Callsign Database</a></li><li><a href="https://hamstudy.org/" rel="nofollow noopener noreferrer" target="_blank">HamStudy.org – Exam Prep and Study Tools</a></li><li><a href="https://www.electronics-tutorials.ws/" rel="nofollow noopener noreferrer" target="_blank">Electronics Tutorials – Basic Circuit Theory</a></li><li><a href="https://www.radioreference.com/" rel="nofollow noopener noreferrer" target="_blank">RadioReference.com – Frequency Database and Scanner Information</a></li><li><a href="https://www.amsat.org/" rel="nofollow noopener noreferrer" target="_blank">AMSAT – Amateur Radio Satellites and Space Communications</a></li><li><a href="https://www.dxengineering.com/" rel="nofollow noopener noreferrer" target="_blank">DX Engineering – Ham Radio Equipment and Resources</a></li><li><a href="https://www.mikroe.com/learn/electronics" rel="nofollow noopener noreferrer" target="_blank">MikroE Learn – Electronics and Circuit Design Tutorials</a></li><li><a href="https://www.rsgb.org/" rel="nofollow noopener noreferrer" target="_blank">Radio Society of Great Britain (RSGB) – Ham Radio Resources</a></li><li><a href="https://www.arduino.cc/" rel="nofollow noopener noreferrer" target="_blank">Arduino – Microcontrollers and DIY Electronics for Ham Radio</a></li><li><a href="https://www.eham.net/" rel="nofollow noopener noreferrer" target="_blank">eHam.net – Amateur Radio News, Reviews, and Forums</a></li></ul><p><strong>Disclaimer:</strong></p><p>The views and opinions expressed in this post are solely those of the author. The information provided is based on personal research, experience, and understanding of the subject matter at the time of writing. Readers should consult relevant experts or authorities for specific guidance related to their unique situations.</p> <p><strong>Related Posts</strong></p> <p><strong>Rate this:</strong></p> <p><a rel="nofollow noopener noreferrer" class="hashtag u-tag u-category" href="https://bdking71.wordpress.com/tag/ac-vs-dc/" target="_blank">#ACVsDC</a> <a rel="nofollow noopener noreferrer" class="hashtag u-tag u-category" href="https://bdking71.wordpress.com/tag/am/" target="_blank">#am</a> <a rel="nofollow noopener noreferrer" class="hashtag u-tag u-category" href="https://bdking71.wordpress.com/tag/amateur-radio/" target="_blank">#AmateurRadio</a> <a rel="nofollow noopener noreferrer" class="hashtag u-tag u-category" href="https://bdking71.wordpress.com/tag/amateur-radio-education/" target="_blank">#amateurRadioEducation</a> <a rel="nofollow noopener noreferrer" class="hashtag u-tag u-category" href="https://bdking71.wordpress.com/tag/amateur-radio-training/" 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href="https://bdking71.wordpress.com/tag/radio-broadcasting/" target="_blank">#radioBroadcasting</a> <a rel="nofollow noopener noreferrer" class="hashtag u-tag u-category" href="https://bdking71.wordpress.com/tag/radio-communication/" target="_blank">#radioCommunication</a> <a rel="nofollow noopener noreferrer" class="hashtag u-tag u-category" href="https://bdking71.wordpress.com/tag/radio-frequencies/" target="_blank">#radioFrequencies</a> <a rel="nofollow noopener noreferrer" class="hashtag u-tag u-category" href="https://bdking71.wordpress.com/tag/radio-frequency/" target="_blank">#radioFrequency</a> <a rel="nofollow noopener noreferrer" class="hashtag u-tag u-category" href="https://bdking71.wordpress.com/tag/radio-fundamentals/" target="_blank">#radioFundamentals</a> <a rel="nofollow noopener noreferrer" class="hashtag u-tag u-category" href="https://bdking71.wordpress.com/tag/radio-licensing/" target="_blank">#RadioLicensing</a> <a rel="nofollow noopener noreferrer" class="hashtag u-tag u-category" href="https://bdking71.wordpress.com/tag/radio-signals/" target="_blank">#radioSignals</a> <a rel="nofollow noopener noreferrer" class="hashtag u-tag u-category" href="https://bdking71.wordpress.com/tag/radio-technology/" target="_blank">#RadioTechnology</a> <a rel="nofollow noopener noreferrer" class="hashtag u-tag u-category" href="https://bdking71.wordpress.com/tag/radio-transmission/" target="_blank">#radioTransmission</a> <a rel="nofollow noopener noreferrer" class="hashtag u-tag u-category" href="https://bdking71.wordpress.com/tag/radio-waves/" target="_blank">#radioWaves</a> <a rel="nofollow noopener noreferrer" class="hashtag u-tag u-category" href="https://bdking71.wordpress.com/tag/resistance/" target="_blank">#resistance</a> <a rel="nofollow noopener noreferrer" class="hashtag u-tag u-category" href="https://bdking71.wordpress.com/tag/resistors/" target="_blank">#resistors</a> <a rel="nofollow noopener noreferrer" class="hashtag u-tag u-category" href="https://bdking71.wordpress.com/tag/rf-exposure/" target="_blank">#RFExposure</a> <a rel="nofollow noopener noreferrer" class="hashtag u-tag u-category" href="https://bdking71.wordpress.com/tag/rf-safety/" target="_blank">#RFSafety</a> <a rel="nofollow noopener noreferrer" class="hashtag u-tag u-category" href="https://bdking71.wordpress.com/tag/ssb/" target="_blank">#SSB</a> <a rel="nofollow noopener noreferrer" class="hashtag u-tag u-category" href="https://bdking71.wordpress.com/tag/technician-class/" target="_blank">#technicianClass</a> <a rel="nofollow noopener noreferrer" class="hashtag u-tag u-category" href="https://bdking71.wordpress.com/tag/technician-license/" target="_blank">#TechnicianLicense</a> <a rel="nofollow noopener noreferrer" class="hashtag u-tag u-category" href="https://bdking71.wordpress.com/tag/transistors/" target="_blank">#transistors</a> <a rel="nofollow noopener noreferrer" class="hashtag u-tag u-category" href="https://bdking71.wordpress.com/tag/uhf/" target="_blank">#UHF</a> <a rel="nofollow noopener noreferrer" class="hashtag u-tag u-category" href="https://bdking71.wordpress.com/tag/vhf/" target="_blank">#VHF</a> <a rel="nofollow noopener noreferrer" class="hashtag u-tag u-category" href="https://bdking71.wordpress.com/tag/voltage/" target="_blank">#voltage</a></p>
Rue Mohr<p>ok, well, the managment part of my brain is going to sleep, here is a photo of all the main parts in the case, I have to think about what I'm putting in here and how it will all get hooked up...</p><p>This was an experiment making a proper thread, lets see how it goes...</p><p><a href="https://infosec.exchange/tags/electronics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>electronics</span></a> <br><a href="https://infosec.exchange/tags/diy" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>diy</span></a> <a href="https://infosec.exchange/tags/powersupply" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>powersupply</span></a></p>
LMS Solution<p>Grid connected and Islanded mode operation of Microgrid<br><a href="https://zurl.co/fKdsI" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="">zurl.co/fKdsI</span><span class="invisible"></span></a><br><a href="https://zurl.co/bkGJN" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="">zurl.co/bkGJN</span><span class="invisible"></span></a><br><a href="https://mastodon.social/tags/Microgrid" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Microgrid</span></a> <a href="https://mastodon.social/tags/GridConnected" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>GridConnected</span></a> <a href="https://mastodon.social/tags/IslandedMode" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>IslandedMode</span></a> <a href="https://mastodon.social/tags/PowerSupply" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>PowerSupply</span></a> <a href="https://mastodon.social/tags/RenewableEnergy" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>RenewableEnergy</span></a> <a href="https://mastodon.social/tags/EnergySystems" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>EnergySystems</span></a> <a href="https://mastodon.social/tags/ResilientInfrastructure" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>ResilientInfrastructure</span></a> <a href="https://mastodon.social/tags/SmartGrid" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>SmartGrid</span></a></p>
MediaFaro News Digest<p>Data centres could strain Europe's power supply by 2030, report warns.</p><p>The AI-driven data centre boom could strain the continent's energy supplies and octuple emissions by the end of the decade, according to a new report.</p><p><a href="https://mediafaro.org/article/20250210-data-centres-could-strain-europes-power-supply-by-2030-report-warns?mf_channel=mastodon&action=forward" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">mediafaro.org/article/20250210</span><span class="invisible">-data-centres-could-strain-europes-power-supply-by-2030-report-warns?mf_channel=mastodon&action=forward</span></a></p><p><a href="https://mastodon.mediafaro.org/tags/Europe" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Europe</span></a> <a href="https://mastodon.mediafaro.org/tags/Datacenters" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Datacenters</span></a> <a href="https://mastodon.mediafaro.org/tags/AI" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>AI</span></a> <a href="https://mastodon.mediafaro.org/tags/DataCentres" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>DataCentres</span></a> <a href="https://mastodon.mediafaro.org/tags/Energy" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Energy</span></a> <a href="https://mastodon.mediafaro.org/tags/FossilFuels" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>FossilFuels</span></a> <a href="https://mastodon.mediafaro.org/tags/Emissions" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Emissions</span></a> <a href="https://mastodon.mediafaro.org/tags/CarbonEmissions" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>CarbonEmissions</span></a> <a href="https://mastodon.mediafaro.org/tags/Power" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Power</span></a> <a href="https://mastodon.mediafaro.org/tags/PowerSupply" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>PowerSupply</span></a> <a href="https://mastodon.mediafaro.org/tags/Tech" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Tech</span></a></p>
MediaFaro Analysis<p>Data centres could strain Europe's power supply by 2030, report warns.</p><p>The AI-driven data centre boom could strain the continent's energy supplies and octuple emissions by the end of the decade, according to a new report.</p><p><a href="https://mediafaro.org/article/20250210-data-centres-could-strain-europes-power-supply-by-2030-report-warns?mf_channel=mastodon&action=forward" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">mediafaro.org/article/20250210</span><span class="invisible">-data-centres-could-strain-europes-power-supply-by-2030-report-warns?mf_channel=mastodon&action=forward</span></a></p><p><a href="https://mastodon.mediafaro.org/tags/Europe" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Europe</span></a> <a href="https://mastodon.mediafaro.org/tags/Datacenters" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Datacenters</span></a> <a href="https://mastodon.mediafaro.org/tags/AI" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>AI</span></a> <a href="https://mastodon.mediafaro.org/tags/DataCentres" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>DataCentres</span></a> <a href="https://mastodon.mediafaro.org/tags/Energy" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Energy</span></a> <a href="https://mastodon.mediafaro.org/tags/FossilFuels" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>FossilFuels</span></a> <a href="https://mastodon.mediafaro.org/tags/Emissions" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Emissions</span></a> <a href="https://mastodon.mediafaro.org/tags/CarbonEmissions" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>CarbonEmissions</span></a> <a href="https://mastodon.mediafaro.org/tags/Power" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Power</span></a> <a href="https://mastodon.mediafaro.org/tags/PowerSupply" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>PowerSupply</span></a> <a href="https://mastodon.mediafaro.org/tags/Tech" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Tech</span></a></p>
LavX News<p>Meltdown Alert: RTX 5090 Power Connector Issues Raise Eyebrows in Gaming Community</p><p>A Reddit user's alarming report of a melted power connector on their RTX 5090 raises concerns about third-party components and power supply compatibility. As gaming hardware becomes increasingly power...</p><p><a href="https://news.lavx.hu/article/meltdown-alert-rtx-5090-power-connector-issues-raise-eyebrows-in-gaming-community" rel="nofollow noopener noreferrer" target="_blank"><span class="invisible">https://</span><span class="ellipsis">news.lavx.hu/article/meltdown-</span><span class="invisible">alert-rtx-5090-power-connector-issues-raise-eyebrows-in-gaming-community</span></a></p><p><a href="https://mastodon.cloud/tags/news" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>news</span></a> <a href="https://mastodon.cloud/tags/tech" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>tech</span></a> <a href="https://mastodon.cloud/tags/PCGaming" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>PCGaming</span></a> <a href="https://mastodon.cloud/tags/RTX5090" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>RTX5090</span></a> <a href="https://mastodon.cloud/tags/PowerSupply" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>PowerSupply</span></a></p>
Polykit<p>My new video on building a simple Eurorack power supply is out!<br>YouTube: <a href="https://youtu.be/PHqY4miUHxs" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="">youtu.be/PHqY4miUHxs</span><span class="invisible"></span></a><br>Peertube: <a href="https://makertube.net/w/dXxTvcnKAyb9k5rZbhqsBG" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">makertube.net/w/dXxTvcnKAyb9k5</span><span class="invisible">rZbhqsBG</span></a><br><a href="https://chaos.social/tags/eurorack" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>eurorack</span></a> <a href="https://chaos.social/tags/synth" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>synth</span></a> <a href="https://chaos.social/tags/synthdiy" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>synthdiy</span></a> <a href="https://chaos.social/tags/powersupply" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>powersupply</span></a> <a href="https://chaos.social/tags/psu" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>psu</span></a></p>
TomAoki<p><span class="h-card" translate="no"><a href="https://mastodon.gyptazy.com/@gyptazy" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@<span>gyptazy</span></a></span> <br>Just a FYI:<br>If any of the mini PCs you want to cover with the UPS has high efficiency power supplies (i.e., at least higher class of 80PLUS spec), it would have active PFC[PowerFactorCorrection circuit]s.<br>And basically active PFCs are designed for sine wave as inputs from power lines.<br>Means, if the output from UPS'es are NOT in sine wave (say, square wave), it could cause hazards.<br>Cheap and simple switching power supplies without PFCs would be safe, though. This would be because outputs from cheap UPS'es are often in square wave to make their internal circuit simpler.</p><p> <a href="https://www.soundhouse.co.jp/en/contents/staff-blog/index?post=3892&srsltid=AfmBOorycmGA7CJKkg1FIVu_o1bLTC4xFoEcdqinDSrd89J7oK7Kjs2S" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">soundhouse.co.jp/en/contents/s</span><span class="invisible">taff-blog/index?post=3892&srsltid=AfmBOorycmGA7CJKkg1FIVu_o1bLTC4xFoEcdqinDSrd89J7oK7Kjs2S</span></a></p><p> <a href="https://electronics.stackexchange.com/questions/86943/will-a-psu-with-active-pfc-work-with-normal-ups" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">electronics.stackexchange.com/</span><span class="invisible">questions/86943/will-a-psu-with-active-pfc-work-with-normal-ups</span></a></p><p><a href="https://mastodon.bsd.cafe/tags/UPS" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>UPS</span></a> <a href="https://mastodon.bsd.cafe/tags/PFC" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>PFC</span></a> <a href="https://mastodon.bsd.cafe/tags/PowerSupply" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>PowerSupply</span></a> <a href="https://mastodon.bsd.cafe/tags/Waveform" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Waveform</span></a></p>
8Petros [$ rm -rv /capitalism/*]Also, am looking for <a href="https://petroskowo.pl/search?tag=wiring" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>wiring</span></a> diagram and descriptiion of the DC side of <a href="https://petroskowo.pl/search?tag=Modecom" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Modecom</span></a> NC-UN70 universal <a href="https://petroskowo.pl/search?tag=PowerSupply" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>PowerSupply</span></a>
Laurent FRANCOISE<p>Cette histoire de "réparer mes alims de labo" est en train de se transformer en "faire une nouvelle alim de labo" 😁 (ce qui n'empêchera pas de réparer l'originale !)<br>J'ai retrouvé le schéma, il s'agit d'un projet publié dans <a href="https://piaille.fr/tags/Elektor" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Elektor</span></a> en décembre 1982 : c'est une (très bonne) alimentation linéaire qui fournit au maximum 30V/3A.<br>J'ai redessiné le PCB pour pouvoir utiliser des composants "modernes" (par exemple les condensateurs ont bien rapetissé en 40 ans !) mais c'est exactement le même schéma.<br><a href="https://piaille.fr/tags/electronics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>electronics</span></a> <a href="https://piaille.fr/tags/diy" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>diy</span></a> <a href="https://piaille.fr/tags/powersupply" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>powersupply</span></a></p>
Bytes Europe<p>ROHM and TSMC Launch Strategic Gallium Nitride Technology <a href="https://www.byteseu.com/551898/" rel="nofollow noopener noreferrer" target="_blank"><span class="invisible">https://www.</span><span class="">byteseu.com/551898/</span><span class="invisible"></span></a> <a href="https://pubeurope.com/tags/autmotive" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>autmotive</span></a> <a href="https://pubeurope.com/tags/DeltaElectronics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>DeltaElectronics</span></a> <a href="https://pubeurope.com/tags/EcoGaN" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>EcoGaN</span></a> <a href="https://pubeurope.com/tags/ev" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>ev</span></a> <a href="https://pubeurope.com/tags/GaN" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>GaN</span></a> <a href="https://pubeurope.com/tags/Innergie" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Innergie</span></a> <a href="https://pubeurope.com/tags/JAPANEXCHANGEGROUP" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>JAPANEXCHANGEGROUP</span></a>:6963.T <a href="https://pubeurope.com/tags/partnership" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>partnership</span></a> <a href="https://pubeurope.com/tags/PowerSupply" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>PowerSupply</span></a> <a href="https://pubeurope.com/tags/rohm" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>rohm</span></a> <a href="https://pubeurope.com/tags/ROHMSemiconductor" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>ROHMSemiconductor</span></a> <a href="https://pubeurope.com/tags/semiconductor" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>semiconductor</span></a> <a href="https://pubeurope.com/tags/SiC" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>SiC</span></a> <a href="https://pubeurope.com/tags/Technology" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Technology</span></a> <a href="https://pubeurope.com/tags/TSMC" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>TSMC</span></a></p>
Diego :mastodon:<p>Dúvida cruel: comprar uma fonte Dell L250NS-00 original (usada) de 250W ou uma genérica ("nova") de 300W?</p><p>Trata-se de um Desktop Dell Vostro 260S da minha irmã. Aparentemente, deve ter sido só a fonte que foi pro saco. </p><p>A princípio, prefiro obviamente uma nova. Mas minha fixação no baixo consumo de energia sempre bate o olho nesses "250W", prevendo no futuro pegar essa máquina para mim e usá-la como servidor caseiro :-) </p><p><a href="https://bolha.us/tags/Hardware" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Hardware</span></a> <a href="https://bolha.us/tags/Dell" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Dell</span></a> <a href="https://bolha.us/tags/Desktop" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Desktop</span></a> <a href="https://bolha.us/tags/Vostro260S" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Vostro260S</span></a> <a href="https://bolha.us/tags/PowerSupply" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>PowerSupply</span></a></p>
Attie Grande<p>Look what's arrived! 🤓</p><p>This is a re-order of the XP Power GCS180PS12, this time with the -R suffix for the "Remote On/Off" functionality.</p><p>There are some small differences, and it's too many to warrant reverse engineering / reworking yourself... but it's probably not quite justifying the price bump!</p><p><a href="https://chaos.social/tags/aglient" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>aglient</span></a> <a href="https://chaos.social/tags/keysight" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>keysight</span></a> <a href="https://chaos.social/tags/msox2000" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>msox2000</span></a> <a href="https://chaos.social/tags/msox3000" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>msox3000</span></a> <a href="https://chaos.social/tags/powersupply" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>powersupply</span></a></p>
Phil Haigh<p>Time for a model railway update. </p><p>So I need extensive 12v and to a lesser extent 16v and 5v power all around the layout - here’s my solution.</p><p>A small form factor PC case, a pair of Meanwell PSUs for 5v and 12v, and an adjustable PSU for 16v (that’s for the Kadee uncouplers).</p><p>Mains power comes into one set of terminals and is split three ways. An Earth goes to the chassis. I’ve got good quality 24/0.7 from the power supplies to another set of terminals.</p><p><a href="https://mastodonapp.uk/tags/ModelRailways" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>ModelRailways</span></a> <a href="https://mastodonapp.uk/tags/PowerSupply" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>PowerSupply</span></a> <a href="https://mastodonapp.uk/tags/Meanwell" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Meanwell</span></a></p>
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