Dave tears down the 10W Coherent 300C Argon Ion laser. All 42kg, 1.2m and 24kW worth! The App Hour podcast episode: https://theamphour.com/521-outdoor-laser-projection-object-mapping-with-daryl-tewksbury/ Forum: https://www.eevblog.com/forum/blog/eevblog-1412-argon-ion-laser-teardown/ Podcast: Download
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BREAKING NEWS: The Tesla “Victoria Big Battery” 450MWh battery storage facility at Moorabool in Victoria Australia caught on fire before it was even operational! Forum: https://www.eevblog.com/forum/renewable-energy/australias-biggest-tesla-battery-storage-system-at-moorabool-is-on-fire/
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Mailbag! Froum: https://www.eevblog.com/forum/blog/eevblog-1410-mailbag/ SPOILERS: 00:00 – Dancom RT403B 25W VHF Marine Transceiver teardown. 09:07 – Workbench of the week, Tony Albus: https://www.youtube.com/channel/UCwLPcv2xiA3D9lfGArF58ww TEA: https://www.eevblog.com/forum/testgear/test-equipment-anonymous-(tea)-group-therapy-thread/ 12:36 – Riedon SSA-100 100A Differential Isolated Current Sensor. https://riedon.com/ https://www.digikey.com/en/products/detail/riedon/SSA-100/12149327 22:19 – DODGY! Soviet era mains rechargable torch 27:36 – Jon Newcomb’s Microcontroller Proto Boards …
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A practical demonstration of Lenz’s law and back EMF in an inductive relay coil and how to solve it using a Freewheeling/Flywheel/Flyback/Snubber/Clamp diode. Also the downsides of clamping diodes, and switch arcing supression. Also a look at an AMAZING potential phenomenon you probably haven’t seen before! Actually, two rather cool …
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WiGL have raised almost 5 MILLION dollars on StartEngine. What’s worse than another wireless charging technology startup? – One that doesn’t really have any original technology and simply uses off the shelf RF energy harvesting chips! This one is just embarrassing. And they want to comepete with Energous, WiTricity, Ossia …
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iFixit founder Kyle Wiens talking about Right to repair at the inaugural 2021 Australian Right to Repair summit. Dave also talk about the Right to Repair initiative and the Australian Government Productivity Commission Right to Repair Report just released. 00:00 – Dave talks about Right to Repair 05:32 – Kyle …
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The conclusion of the DC circuit fundmentals tutorial series. How a capacitor and inductor works, parallel and series configurations, exponential rise and decay, time constants, and basic differential calculus. Energy storage in capacitors and inductors and how a collapsing inductor magnetic field can be both a problem and a benefit. …
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A side-by-side teardown of the Focusrite Scarlett Solo and the Rode AI-1 USB audio interface. Podcast: Download
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Shut up and take my money! A look at the Flake Multimeter Watch concept art by Alexander Schmid Fluke should hire this guy! https://www.artstation.com/artwork/Vg4Zo5 https://www.artstation.com/sinistergrief Forum: https://www.eevblog.com/forum/testgear/the-flake-multimeter-watch/
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The HP9845B 16 bit computer was revolutionary in 1979 and the early 1980’s, find out why. The 9845C colour version of this created the amazing war room images for the movie War Games Forum: https://www.eevblog.com/forum/blog/eevblog-1404-the-amazing-hp-9845b-computer/ Podcast: Download
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Mailbag! SPOILERS: 00:00 – Eric Lundgren & Big Battery teardown Big Battery 180Wh pack teardown Eric Lundgren: https://www.youtube.com/watch?v=Uv_zBYlZJR8 Eric on Louis Rossman: https://www.youtube.com/watch?v=S7hnVYMoctM 13:00 – Workbench of the week, Fabian Schwartau 15:58 – Oleg Kutkov’s lab clock distribution amplifier https://olegkutkov.me/ 20:00 – Book: Practical Hardware Pentesting https://amzn.to/3w9cpEJ 24:13 – Book: …
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Teardown of the new NGA100 100V 2A NGA142/NGA102 Lab Power Supply, and a look at a few issues found. PLUS a GIVEAWAY of two units! https://www.rohde-schwarz.com/hk/products/test-and-measurement/dc-power-supplies/rs-nga100-power-supply-series_63493-959872.html Forum: https://www.eevblog.com/forum/blog/eevblog-1402-rohde-schwarz-nga100-psu-teardown-giveaway/ Forum GIVEAWAY: https://www.eevblog.com/forum/contests/giveaway-rohde-schwarz-nga102-psu/ Schools/Makerspace GIVEAWAY: https://www.eevblog.com/forum/contests/schools-makerspace-giveaway-rohde-schwarz-nga142-psu/ Podcast: Download
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Dave closes out the basic DC circuit series with DC Power, Efficiency, & Maximum Power Transfer Theory tutorial. Includes Ohm’s law refresher. DC Fundamentals Forum: https://www.eevblog.com/forum/blog/eevblog-1401-dc-power-efficiency-maximum-power-transfer-theory/ Playlist: https://www.youtube.com/playlist?list=PLvOlSehNtuHtVLq2MDPIz82BWMIZcuwhK Podcast: Download
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Dave takes a closer look the micro actuator used in the 6TB Western Digital RED hard drive. Forum: https://www.eevblog.com/forum/blog/eevblog-1400-hard-drive-micro-actuators-are-amazing!/
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Fundamentals video. Voltage dividers, series and parallel resistors, current dividers, a revisit of Norton and Thevenin’s theorems, rules of thumbs, and a trap for young players experiment on circuit loading. 00:00 – Intoduction to voltage dividers 01:33 – Uses of voltage dividers 04:27 – Rules of thumb 06:55 – Calculations …
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