EEVblog

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 Sp

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-volt

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 links: htt

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=VZCokbsTw

How VFD (Vacuum Fluorescent) Displays Work. Extracted from a hacking video #717: https://www.youtube.com/watch?v=clUVEyi_YNM Forum: https://www.eevblog.com/forum/blog/eevblog-1601-how-vfd-(vacuum-fluorescent)-displays-work/

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-f

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 BJT: 2N3055 / 2955 17:09 …

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

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-7

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 2 months! 02:58 – Product …