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More amazing Mailbag! 00:00 - Professional Electronic Design Best Practices, Volume II https://amzn.to/40Oh690 06:01 - A Crusty Nautalytics Simple Compass 11:46 - DPS DIN Power Supply Modules https://digitalpowersystems.eu/hdr20/ https://digitalpowersystems.eu/usb_ac_pd_20w_en/ 20:22 - The Book: The Ultimate Guide to Rebuilding a Civilization https://amzn.to/4d2N4FP Forum: https://www.eevblog.com/...

Looking at a dumpster diving laptop haul with Sagan! Web Site: http://www.eevblog.com Hardware Store: https://eevblog.store/ Merch Store: https://eevblog.dashery.com/ If you find my videos useful you may consider supporting the EEVblog on Patreon: http://www.patreon.com/eevblog Other channels: EEVblog2: http://www.youtube.com/EEVblog2 EEVdiscover: https://www.youtube.com/eevdiscover #ElectronicsCr...

I bought a MacBook Air, and this happened. Video on EEVblog2 channel. ... https://www.youtube.com/watch?v=Tr_Jj4tftD8

The Beelink EQR6 Ryzen 9 Mini PC mysteriously failed after an upgrade, why? Original Teardown Video: https://www.youtube.com/watch?v=tz4cYPj3Kls Forum: https://www.eevblog.com/forum/blog/eevblog-1739-unusual-fault-in-a-beelink-ryzen-9-mini-pc/ Web Site: http://www.eevblog.com Hardware Store: https://eevblog.store/ Merch Store: https://eevblog.dashery.com/ If you find my videos useful you may consi...

Everyone's favorite Solar Roadway, the OG Solar Freakin' Roadways is still going strong with NEW EQUITY FUNDING! Forum: https://www.eevblog.com/forum/blog/eevblog-1738-solar-freakin-roadways-new-funding!/ Web Site: http://www.eevblog.com Hardware Store: https://eevblog.store/ Merch Store: https://eevblog.dashery.com/ If you find my videos useful you may consider supporting the EEVblog on...

A chat with Alex Lidow, the inventor of the original Power MOSFET and HEXFET at International Rectifier. Former CEO of International Rectifier (founded by his father!), and now Founder & CEO of EPC (Efficient Power Conversion) that make the most efficient GaN FET's on the market. https://epc-co.com We cover everything from inventing the power MOSFET on his first day on the job to silicon...

The Youtube Copyright System is BROKEN. One of my family videos got copyright claimed by BrownBoiMusic even though it was upload 1 YEAR BEFORE the claimants video. And they rejected my appeal. To dispute the rejected claim I now have to dox myself. What a joke. My video: https://www.youtube.com/watch?v=DYucemd-IRA Their video: https://www.youtube.com/watch?v=IO9lBWQkKVA Web Site: http://www.eevblo...

What are the TOP 5 Jellybean MOSFET's? 00:00 - MOSFET vs BJT 02:21 - What is a Jellybean? 04:14 - 2N7002 N-Channel wimpy generic 13:10 - BSS84 P-Channel wimpy generic 14:47 - AO3400 N-Channel SOT-23 21:30 - Continuous Current vs Pulse Current Rating and SOA Graph 24:15 - AO3401 P-Channel SOT-23 25:56 - AO4410 N-Channel SO-8 High Current 30:10 - AO4407 P-Channel SO-8 High Current 31:18 - IRLML...

Nobody truly understands the complexity of modern supply chains for the technology we take for granted. How the AI supply chain works, from ChatGPT to sugercane https://aisupplychain.vercel.app/ https://x.com/chiefofautism Forum: https://www.eevblog.com/forum/blog/eevblab-138-you-dont-understand-supply-chains!/ Web Site: http://www.eevblog.com Hardware Store: https://eevblog.store/ Merch Store: ht...

How to measure DC power rail high bandwidth waveforms with the offset control on your oscilloscope. Active Probes, Passive Probes, Z0 probes, and specific DC Power Rail Probes are compared. Forum: https://www.eevblog.com/forum/blog/eevblog-1735-oscilloscope-dc-offset-explained/ Web Site: http://www.eevblog.com Hardware Store: https://eevblog.store/ Merch Store: https://eevblog.dashery.com/ If you...

The Uni-T UT892 High Voltage Multimeter is unusually rated to 2000V! Teardown and testing time, is it any good? 00:00 - Uni-T UT892 2000V High Voltage Multimeter 02:39 - Unboxing 03:40 - FAIL right off the bat! Probes matter. 05:53 - Teardown 08:06 - Where's the MOV's? 09:07 - The case design leaves a lot to be desired 09:23 - PCB switch contact side 09:44 - Houston, we have a clearance...

More mailbag! 00:00 - Vetus Pars Retro Chip Tester https://retrotroniks.com/product/vetus-pars-retro-chip-tester/ 17:05 - PRP1 2GHz Power Rail probe https://www.eevblog.com/forum/testgear/prp1-low-cost-2ghz-power-rail-probe/ 22:07 - PRP1 Teardown 24:10 - PRP1 Circuit Explanation 27:08 - PRP1 Testing 32:09 - Comparison with Agilent 2GHz Active Probe Forum: https://www.eevblog.com/forum/blog/eevblog...

How much capacity has this 20+yo 1000+ cycle Panasonic 14500 lithium ion battery lost? 00:00 - Panasonic electronic shaver teardown 06:30 - Battery dimensions match the type number 08:24 - The battery capacity test setup 10:40 - 500mA Constant Current test 11:38 - How much energy is left in a "flat" battery? 13:46 - 250mA Constant Current test 14:54 - 100mA Constant Current test 15:13 -...

The $50 Ziboo 17B Pro 1500V Multimeter vs the $150 Fluke 17B MAX Is it any good? https://s.click.aliexpress.com/e/_c4qPSOQR Forum: https://www.eevblog.com/forum/blog/eevblog-1731-$50-ziboo-17b-pro-multimeter-vs-$150-fluke-review/ Web Site: http://www.eevblog.com Hardware Store: https://eevblog.store/ Merch Store: https://eevblog.dashery.com/ If you find my videos useful you may consider supporting...

The AI Slop creators are completely shameless! https://fortune.com/2025/12/30/ai-slop-faceless-youtube-accounts-adavia-davis-user-generated-content/ Forum: https://www.eevblog.com/forum/blog/eevblab0137-youtube-ai-slop-creators-are-shameless!/ Web Site: http://www.eevblog.com Hardware Store: https://eevblog.store/ Merch Store: https://eevblog.dashery.com/ If you find my videos useful you may consi...

Part 8 of the AC Basics tutorial series. Looking at the difference between Apparent, Reactive, and Real Power. Plus Power Factor 00:00 - Voltage & Current phase relationship 02:28 - Real Power 07:09 - Apparent Power 12:02 - Power transmission systems and copper losses 17:45 - Reactive Power 20:17 - It's all a Fugazi, it doesn't exist 21:52 - Power Triangle 23:46 - Power Factor AC Tut...

Ohms law applied to AC. AC Tutorial Playlist: https://www.youtube.com/playlist?list=PLvOlSehNtuHvD6M_7WeN071OVsZFE0_q- Forum: https://www.eevblog.com/forum/blog/eevblog-1729-ac-basics-tutorial-part-7-ac-ohms-law/ Web Site: http://www.eevblog.com Hardware Store: https://eevblog.store/ Merch Store: https://eevblog.dashery.com/ If you find my videos useful you may consider supporting the EEVblog on P...

Part 6 of the AC basics tutorial video series, covering Impedance, Conductance, Susceptance, and Admittance. 00:00 - AC Tutorial Series Part 6 00:56 - Impedance 07:32 - Reactance vs Impedance 08:17 - Conductance 11:21 - The Fluke 87V measures conductance! 12:12 - Susceptance & Admittance 13:53 - Tying it all together AC Tutorial Playlist: https://www.youtube.com/playlist?list=PLvOlSehNtuHvD6M_...

Simple repair of a Casio CT-X700 keyboard, with Sagan, and some really bad music. Forum: https://www.eevblog.com/forum/blog/eevblog-1727-repair-casio-ct-x700-keyboard/ Web Site: http://www.eevblog.com Hardware Store: https://eevblog.store/ Merch Store: https://eevblog.dashery.com/ If you find my videos useful you may consider supporting the EEVblog on Patreon: http://www.patreon.com/eevblog Other...

Repairing a failed EV charger DC-DC converter had an unusual twist. Forum: https://www.eevblog.com/forum/blog/eevblog-1726-repair-of-an-ev-charger/ Web Site: http://www.eevblog.com Hardware Store: https://eevblog.store/ Merch Store: https://eevblog.dashery.com/ If you find my videos useful you may consider supporting the EEVblog on Patreon: http://www.patreon.com/eevblog Other channels: EEVblog2:...

Sagan joins Dave to open more packages, in everyone's favorite segment Mailbag. 00:00 - The Connector Book! by Davide Andrea https://connectorbook.com/ 11:02 - BLE CaberQu USB-C cable tester https://caberqu.com 22:02- Teardown of the CaberQu 24:22 - Snaptron FREE Sample Box https://www.snaptron.com/free-samples/sample-box/ 24:55 - Sagan's Knife Skills! 32:10 - Elecrow CrowPanel Pi Termin...

Teardown of the classic Australian Made BWD 603B Minilab that was saved from the UTS dumpster. Forum: https://www.eevblog.com/forum/blog/eevblog-1724-bwd-603b-minilab-retro-teardown/ Web Site: http://www.eevblog.com Hardware Store: https://eevblog.store/ Merch Store: https://eevblog.dashery.com/ If you find my videos useful you may consider supporting the EEVblog on Patreon: http://www.patreon.com...

The Australian government eSafety office officially recommends the use of a VPN to protect your privacy online, avoid geo blocking and to maintain anonymity online. eSafety Quote: "There are many benefits in and valid reasons for maintaining a level of anonymity or practicing identity shielding online, including the right to privacy and protection from violence or unwanted contact." http...

Review of the AlienTek DM40 Multimeter/Oscilloscope https://s.click.aliexpress.com/e/_c4EPQJod 00:00 - Alientek DM40C Multimeter and Oscilloscope 02:12 - Unboxing 03:51 - What's with the rotating tilting bail? 06:15 - Power on 08:53 - The Trend Chart is really nice 10:19 - Online/Offline mode, what IS this? 11:58 - Banana jacks please 12:07 - Megaohms interference issue 13:20 - Autoranging sp...

Re-telling of a manufacturing hardware war story talk I gave at a recent hardware meetup in Sydney. https://luma.com/Sydney-hardware-meetup?k=c How a simple manufacturing change cost a company millions of dollars. 00:00 - Sydney Hardware Meetup 01:16 - Seismic Oil Survey Exploration: How to find oil 03:29 - Seismic survey vessels are HUGE! 04:25 - Solid Towed Array Streamers 05:56 - On the back de...