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EEVblog 1605 – Chasing Fart Noises – JBL Charge 3 “Repair”

Dave is chasing fart noises in this JBL Charge 3 waterproof speaker. A teardown, and powerup on the bench to find the mysterious fart noises. Will it get repaired, or will the fault do a Harold Holt? Part 2: https://www.youtube.com/watch?v=u7sVGnrf0P0 Forum: https://www.eevblog.com/forum/blog/eevblog-1605-chasing-fart-noises-jbl-charge-3-repair/ 00:00 – JBL Charge 3 Waterproof Speaker Fault …

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EEVblog 1604 – BEWARE! Multimeter Burden Voltage

Burden Voltage is a BIG trap with Multimeters, don’t get caught out! A short video demonstrating the impact of Burden Voltage / Shunt Resistance on current measurement. Mutlimeter Shunt Tutorial Part1: https://www.youtube.com/watch?v=jx0dryLmUEQ Part 2: https://www.youtube.com/watch?v=xSEYPP5Xsi0 Forum: https://www.eevblog.com/forum/blog/eevblog-1604-beware-multimeter-burden-voltage/ Podcast: Download

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EEVblog 1603 – Colas Wattway Solar Roadways is DEAD

The 1km Colas Wattway Solar Roadway in Normandy in France is finally being scrapped. Press F in the chat. €5M of taxpayer money down the drain. That money could have bought a 5MW commercial solar farm that produced 15 times the output power, and lasted decades longer. Forum: https://www.eevblog.com/forum/blog/eevblog-1603-colas-wattway-solar-roadways-is-dead/ Reference …

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EEVblog 1602 – Sony Amplifier REPAIR ADVENTURE

Repair of a Sony HCD-SBT20B Bluetooth Stereo. What it’s like to nail the repair and then, well come-a-gutsa and have to go down the rabbit hole to fix the fix all whilst battling bad design info. How VFD displays work: https://www.youtube.com/watch?v=gZIRPJt69sM Mud run video: https://www.youtube.com/watch?v=yAahT8_P-_E Tektronix autopsy: https://www.youtube.com/watch?v=VZCokbsTwmQ Forum: https://www.eevblog.com/forum/blog/eevblog-1603-sony-amplifier-repair/ …

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EEVblog 1600 – Rouute: Road Based Energy BUSTED

ouute: Road Based Energy! Harvest kinestic energy from cars using speed bumps. Will this decarbonise and save the planet? Do the numbers add up? https://www.rouute.com/road-based-energy Discount Morgan Freeman promo video: https://www.youtube.com/watch?v=uGw2lcTS1gs Introducing Rouute test video: https://www.youtube.com/watch?v=BxnksdL5nx8 https://www.electricaltimes.co.uk/worlds-first-road-based-energy-recovery-system-set-to-launch-to-market-to-help-drive-net-zero-agenda/ https://www.business-live.co.uk/manufacturing/grimsby-start-up-could-generate-26824298 https://www.facebook.com/rouutetechnologies/ Kinetic Energy Calculator: https://www.calculatorsoup.com/calculators/physics/kinetic.php Forum: https://www.eevblog.com/forum/blog/eevblog-1600-rouute-road-based-energy-busted/ 00:00 – Rouute Road Based …

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EEVblog 1599 – TOP 5 Jellybean Bipolar Transistors

The TOP 5 Jellybean Bipolar Junction Transistors (BJT) 00:00 – What is a Jellybean Component? 01:30 – Low Power BJT: 2N3904 / 3906, SMD Marking 1A 06:49 – 2N2222 08:52 – BC547 fanboys 09:28 – Medium Power BJT: FMMT617-619 / 717-719 12:27 – SS8050 / 8550 15:08 – High Power …

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EEVblog 1598 – ANENG AC11 Socket Tester TEARDOWN + SCHEMATIC Reverse Eng

Teardown and reverse engineering of the ANENG AC11 Smart Mains Socket Tester + DaveCAD schematic. Forum: https://www.eevblog.com/forum/blog/eevblog-1598-aneng-ac11-socket-tester-teardown-schematic-reverse-eng/ 00:00 – ANENG AC11 Mains socket wiring tester 00:59 – Simple mains passive socket tester with neon bulbs 03:33 – Fluke ST240+ RCD Socket Tester 06:06 – Testing 07:14 – Teardown 10:54 – …

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EEVblog 1597 – Zoyi ZT-703S $80 2CH 50MHz Oscilloscope/Multimeter Review

Looking at the new $80 Zoyi/Zotech ZT703S Dual channel 50MHz 25,000 count 0.05% handheld oscilloscope/multimeter compared to the single channel 10MHz 10,000 count ZT702S ZT-702S review: https://www.youtube.com/watch?v=aUU-PGUnd0E Forum: https://www.eevblog.com/forum/blog/eevblog-1597-zoyi-zt-703s-$80-2ch-50mhz-oscilloscopemultimeter-review/ Hi-Res photos: 00:00 – The new $80 ZT-703S vs the $60 ZT-702S 03:40 – Power on and screen differences 06:25 – …

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EEVblog 1596 – NEW Digilent Analog Discovery Pro ADP2230 TEARDOWN

Teardown of the UNRELEASED Digilent Analog Discovery Pro ADP2230 It will be released on the 29th Feb 2024 for US$695 Featuring the AvE Widlarizer! Hi-Res photos: Analog Discovery 3 Review: https://www.youtube.com/watch?v=5SbNnaMM1tQ 00:00 – Mystery Mailbag – The Analog Discovery Pro ADP2230 02:24 – Turns out this won’t be released for …

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EEVblog 1595 – 50 Year Chinese Nuclear Diamond Battery!

A Chinese startup has developed a tiny 50 year life diamond nuclear battery that’s going to change the world! Yeah, nah. Same old betavoltaic, same old limitations, and same old startup marketing hype. Beijing Betavolt New Energy Technology Co., Ltd. https://www.betavolt.tech https://www.betavolt.tech/359485-359485_645066.html https://www.betavolt.tech/cp_531390.html https://newatlas.com/energy/betavolt-diamond-nuclear-battery/ https://www.neimagazine.com/news/newschinas-betavolt-develops-50-year-nuclear-battery-11439320 https://world-nuclear-news.org/Articles/Nuclear-battery-Chinese-firm-aiming-for-mass-mark https://www.chinadaily.com.cn/a/202401/16/WS65a68ff7a3105f21a507c9b7.html https://www.greencarcongress.com/2024/01/20240114-betavolt.html https://www.batterypowertips.com/betavolt-achieves-miniaturization-of-atomic-batteries-with-50-year-autonomy/ https://www.eurasiantimes.com/chinas-nuclear-battery-can-power-mobile-phones/ …

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EEVblog 1594 – Inside a Quantum Computer! with Andrea Morello

An in-depth look at the engineering inside a quantum computer, and also demonstrating the operational results live and how they are measured. With Professor Andrea Morello who is the Scientia Professor of quantum engineering in the School of Electrical Engineering and Telecommunications at the University of New South Wales, and …

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EEVblog 1593 – 16kV ESD Tester REPAIR – Part 2

Repairing the Haefely Trench PESD-1600 ESD Tester, plus some testing and discussion of the IEC 61000-4-2 standard. Part 1 teardown: https://www.youtube.com/watch?v=-xtZvSG4N9I Rotary encoder teardown: https://www.youtube.com/watch?v=UgpHZisG1PQ Forum: https://www.eevblog.com/forum/blog/eevblog-1593-16kv-esd-tester-repair-part-2/ 00:00 – Repair of the Haefely Trench PESD-1600 tester 01:40 – Special snowflake rotary encoder test 03:15 – Laugh at Dave as he …

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EEVblog 1591 – MORE Colas Wattway Solar Cycleways in the Netherlands!

Colas Wattway is back with the two 1000sqm solar cycleway installations in the Netherlands! The Dutch are riding their bikes on two new solar cycle paths Just 4 months ago! https://www.youtube.com/watch?v=305EVbcCub4 Forum: https://www.eevblog.com/forum/blog/eevblog-1591-more-colas-wattway-solar-cycleways-in-the-netherlands!/ Some FAIL articles: https://nos.nl/artikel/2484255-innovatief-zonnefietspad-bij-maartensdijk-levert-bijna-niets-op https://www.dutchnews.nl/2023/07/solar-bike-path-fails-to-meet-electricity-targets-again/ https://www.wattisduurzaam.nl/37168/energie-beleid/utrechts-zonnefietspad-op-koers-voor-40-van-beoogde-opbrengst/ https://www.wattwaybycolas.com/en/references/photos.html https://www.colas.com/en/media/press-releases/commissioning-two-wattway-photovoltaic-cycle-paths-netherlands/ https://s.www.colas.com/cdn/ff/t-EqIdIPRtCiY46vASJDMezejJHibBO8DoRPk9njM5Y/1702047018/public/2023-12/20231211_pr-colas_wattway-in-the-netherlands.pdf Podcast: Download

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