EEVblog No Script, No Fear, All Opinion

Dave goes through the real calculations of what it ultimately cost him to rent an office vs buying an office back on 2015. And on the importance of being your own bank, compounding interest reduction, paying off your loan early, and offset accounts for cash flow benefits. Forum: https://www.eevblog.com/forum/blog/eevblog-1430-rent-vs-buy-my-$400-000-mistake!/ Podcast: …

PART 2 Troubleshooting the Sony RX100 Mk4 camera. Service manual: https://www.eevblog.org/files/dsc-rx100m4-sm2.pdf Schematics: https://www.eevblog.org/files/dsc-rx100m4.pdf Forum: https://www.eevblog.com/forum/blog/eevblog-1428-sony-rx100-camera-repair-and-then-wtf!/ Podcast: Download

Dave “repairs” his Sony RX100-IV camera only to go WTF?! A long video that is mostly disassembly and reassembly, so use the time markers if you are bored. 00:00 – Sony RX100 Mk4 Repair 04:30 – Teardown 14:44 – Dave gets ZAPPED! 23:19 – Processor Board 25:51 – Lens assembly …

From the EEVblog forum, an infuriating electronics exam question! Plus a bonus job interview tip. 00:00 – The Forum question 02:12 – Is this a good job interview question? 03:36 – Dave’s working… 07:04 – The Solution 08:08 – Other forum responses 11:40 – Kirchoff’s Current Law MUST Hold! 12:51 …

Dave tracks down why his old 3kW system that was moved was now showing a 20% drop in output power at the same time every day. Is it inverter temperature, inverter mains voltage, solar panel cracking, dodgy connection resistance, or shading? Forum: https://www.eevblog.com/forum/blog/eevblog-1426-this-problem-can-drop-solar-output-by-20/ Podcast: Download

Part 2 of the Fluke 23 multimeter repair by digging into the bunker meter archives from episode #84 Experimenting with alfoil Forum: https://www.eevblog.com/forum/blog/eevblog-1425-fluke-repair-2-electric-boogaloo/ Podcast: Download

Repair of an original Fluke 23 Multimeter. Forum: https://www.eevblog.com/forum/blog/eevblog-1424-fluke-23-multimeter-repair/ Podcast: Download

Dave released the magic smoke during a repair! Brain was not engaged… 00:00 – Alien LED driver 01:34 – New microscope measurment setup! 02:46 – Teardown 07:45 – Brown Black Burnt 09:31 – This sucks! 16:08 – BANG! 18:49 – It seemed reasonable at the time… 19:41 – Reverse Engineering …

The report has been released on the Tesla Moorabool Victoria Big battery fire by Energy Safe Victoria, let’s go through it and discuss the cause. https://esv.vic.gov.au/news/cooling-system-leak-led-to-victorian-big-battery-fire/ Report: https://esv.vic.gov.au/wp-content/uploads/2021/09/VBB_StatementOfFindings_FINAL_28Sep2021.pdf Forum: https://www.eevblog.com/forum/renewable-energy/australias-biggest-tesla-battery-storage-system-at-moorabool-is-on-fire/msg3715759/#msg3715759 00:00 – Overview Tesla Moorabool Fire 02:44 – Finding on the cause of the fire 07:14 – Corrections and improvements …

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