EEVblog No Script, No Fear, All Opinion

Dave hacks a dumpster find to power it up because of a PITA power connector. Then does some bonus PCB imaging. Forum: https://www.eevblog.com/forum/blog/eevblog-1421-dumpster-hack/ Podcast: Download

1 hour Mailbag! Forum: https://www.eevblog.com/forum/blog/eevblog-1420-mailbag/ SPOILERS: 00:00 – Pleo the Dinosaur! The designer talking about Pleo: https://www.youtube.com/watch?v=BOba_zGoZq8 The Commodore Collector: https://www.thecommodorecollector.com/ 06:23 – Amazing workbench of the week from voltnut Xdevs! https://xdevs.com/ 14:25 – DEC VAX 370/11 135A 5V PSU teardown 22:22 – Emizon MCM Electronics alarm panel + AdPlayer …

RIP Sir Clive Sinclair. Dave finally gets around to starting to take apart and restore the classic Sinclair C5 electric vehicle. Forum: https://www.eevblog.com/forum/blog/eevblog-1420-sinclair-c5-restoration-part-2/ Podcast: Download

This “Repair” of a Keysight DSOX1102G oscilloscope was a tad embarrassing… Forum: https://www.eevblog.com/forum/blog/eevblog-1418-the-most-embarrassing-repair/ Podcast: Download

Following in from the DC circuit fundamanetals series starts the AC circuti fundamentals series. This part 1 looks at: – What is Alternating Current – How AC is created using a generator – Angular Frequency – The sinusoidal waveform, benefits and downsides – Average, peak, peak to peak, and RMS …

Random teardown from the lab, a Sennheiser EW100 true diversity wireless microphone receiver. Plus an explanation of how antenna diversity works. Transmitter and camera receiver teardown: https://www.youtube.com/watch?v=dFvN04Woihk Gary: https://twitter.com/Gary43696951 Forum: https://www.eevblog.com/forum/blog/eevblog-1416-random-teardown-sennheiser-ew100-true-diversity-receiver/ Podcast: Download

Reverse engineering the Micsig DP10007 high voltage differential probe. Turning the PCB into a schematic. Forum: https://www.eevblog.com/forum/blog/eevblog-1415-reverse-engineering-the-dp10007-differential-probe/ Reverse enginering how-to for the Rigol oscilloscope: https://www.youtube.com/watch?v=lJVrTV_BeGg DIY light box for PCB photography: https://www.youtube.com/watch?v=6ZH2KeplSrs Podcast: Download

Can Dave destroy the Micsig DP10007 high voltage differential probe by turning the voltage up to 1100V RMS? Plus a teardown of course. https://www.eevblog.com/product/hvp70/ Forum: https://www.eevblog.com/forum/testgear/new-eevblog-hv-probe/ Podcast: Download

NOTE: This video was a response to various questions about Right to Repair I hastily did for a legacy media current affairs program who are doing a segment on right to repair. But I now won’t be on it, so here is the footage if it’s of use to anyone …

Teardown and measurements with the Micsig CP2100B 2.5MHz oscilloscope current probe. Also a demonstration of mains switch mode power supply current and noise measurement, and also some performance tests. Use the coupon code FLUX for 15% off! And paying with crypto gets you a further discount on top of that! …

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

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/

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 …

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 …

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 …