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EEVblog 1516 - Mailbag Bonanza!

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23.11.2022

Mailbag Bonanza! Send stuff to: EEVblog Mailbag PO Box 7949 Norwest NSW 2153 AUSTRALIA Forum: 🤍 00:00 - Mailbag Bonanza! 02:24 - Australian Signals Directorate 75th Aniversary 50 Cent Coin 05:07 - One-Shot Relay! 07:20 - Olight Torch Bonanza! 🤍 08:20 - Olight Marauder 2 14,000 lumen torch 18:29 - Olight RN1500 Bike Light 23:02 - Olight Perun 2 Headlamp 29:54 - Dreo Macro Max S HEPA Air Purifier 🤍 38:34 - Does it produce any dangerous Ozone? 41:19 - Let's check out the FCC report and teardown photos 46:01 - Hoymiles solar microinverters! 🤍 51:06 - Is it potted? 55:31 - Noyafa NF8601S Ethernet cable tracer 🤍 Support the EEVblog on: Patreon: 🤍 Odysee: 🤍 Web Site: 🤍 EEVblog2: 🤍 EEVdiscover: 🤍 AliExpress Affiliate: 🤍 Buy anything through that link and Dave gets a commission at no cost to you. Donate With Bitcoin & Other Crypto Currencies! 🤍 T-Shirts: 🤍 #ElectronicsCreators #Mailbag

eevBLAB 104 - Established Titles Youtube SCAM!

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25.11.2022

Many top Youtubers have been sponsored by a company called Established Titles recently. It's a classic vanity/novelty scam. The rabbit hole goes deep. I provide some extra detail not in other videos. Kamikoto Knives, Fail Ventures, and Galton Voysey are all part of it. Scott Shafer's video: 🤍 Simply Explained video: 🤍 00:00 - Established Titles Scam 05:21 - Who is Galton Voysey Marketing Agency? 07:00 - The two main people involved in all this from Fail Ventures 09:06 - It's all out in the open! 09:31 - A reminder for Youtubers to dig just a little bit 10:07 - The Influencer data pack Forum: 🤍 Support the EEVblog on: Patreon: 🤍 Odysee: 🤍 Web Site: 🤍 EEVblog2: 🤍 EEVdiscover: 🤍 AliExpress Affiliate: 🤍 Buy anything through that link and Dave gets a commission at no cost to you. Donate With Bitcoin & Other Crypto Currencies! 🤍 T-Shirts: 🤍 #scam #debunking #Youtube

EEVblog 1489 - Mystery Teardown!

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28.07.2022

Teardown of a bizarre looking Banshee 343 Ultrasonic Gas Leak Detector Thumbs up this video and pinned comment if you want to see a countdown timer refit project! Datasheet: 🤍 Manual: 🤍 Forum: 🤍 Support the EEVblog on: Patreon: 🤍 Odysee: 🤍 Web Site: 🤍 EEVblog2: 🤍 EEVdiscover: 🤍 AliExpress Affiliate: 🤍 Buy anything through that link and Dave gets a commission at no cost to you. Donate With Bitcoin & Other Crypto Currencies! 🤍 T-Shirts: 🤍 #ElectronicsCreators #Teardown

EEVblog 1515 - Dumpster Tektronix TDS540D 500MHz Oscilloscope LCD Upgrade

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15.11.2022

Part 2 in the dumpster Tektronix 4CH 500MHz TDS540S oscilloscope. Replacing the CRT with an LCD had a few issues... Ebay listing here: 🤍 Part 1 dumpster find: 🤍 Part 1 Repair: 🤍 Forum: 🤍 Support the EEVblog on: Patreon: 🤍 Odysee: 🤍 Web Site: 🤍 EEVblog2: 🤍 EEVdiscover: 🤍 AliExpress Affiliate: 🤍 Buy anything through that link and Dave gets a commission at no cost to you. Donate With Bitcoin & Other Crypto Currencies! 🤍 T-Shirts: 🤍 #ElectronicsCreators #dumpsterdiving #tektronix

EEVblog 1511 - Solar Analytics System FAIL! (+ Dave gets ZAPPED!)

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31.10.2022

The magic smoke was released from my solar analytics monitoring system. What was the culprit? Also Dumb Dave™ gets ZAPPED! Forum: 🤍 Solar Analytics install video: 🤍 Weird current transformer arrangement: 🤍 00:00 - Solar Analytics monitoring system failure 01:58 - Contact probing mains voltage check 03:08 - Inside the infamous fuse box 04:11 - Bench teardown 04:36 - Hey, this thing rattles, WTF! 06:04 - Dumb Dave gets ZAPPED! 08:22 - The missing diode 09:51 - Yuck! 10:59 - The AMAZING resistor! 12:47 - For the MELF fanboys 14:16 - This Supercap looks suspicious... 17:09 - It spewed its guts Support the EEVblog on: Patreon: 🤍 Odysee: 🤍 Web Site: 🤍 EEVblog2: 🤍 EEVdiscover: 🤍 AliExpress Affiliate: 🤍 Buy anything through that link and Dave gets a commission at no cost to you. Donate With Bitcoin & Other Crypto Currencies! 🤍 T-Shirts: 🤍 #ElectronicsCreators #solar #fail

EEVblog 1502 - Is Home Battery Storage Financially Viable?

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25.09.2022

Running through the numbers to see if home battery storage is viable on my home. And comparing Tesla Powerwall, Enphase IQ Battery, BYD LVS, and Greenbank battery pricing. All my solar videos: 🤍 Forum: 🤍 00:00 - Is Home Battery Storage Financially Viable? 00:45 - Energy consumption & production numbers 03:25 - What about hot water? 04:30 - Am I 100% grid-independent? 05:18 - How much does electricity cost? 06:10 - What size battery and what budget? 07:07 - 5 year or 10 year payback? 07:35 - What size battery? 08:34 - Battery storage price comparison. 10:01 - AC Battery. Tesla, Enphase. 10:40 - DC battery hybrid inverter storage 12:26 - Do I get blackouts in Sydney? 12:54 - DYD LVS battery 13:19 - CHEAP Greenbank battery 14:25 - Does a cheap battery pay for itself? 15:11 - Feeding Enphase microinverters into a Hybrid inverter? 17:17 - Longevity, Maintenance, Peak power, and depth of discharge all determine battery life. 18:44 - Conclusion Support the EEVblog on: Patreon: 🤍 Odysee: 🤍 Web Site: 🤍 EEVblog2: 🤍 EEVdiscover: 🤍 AliExpress Affiliate: 🤍 Buy anything through that link and Dave gets a commission at no cost to you. Donate With Bitcoin & Other Crypto Currencies! 🤍 T-Shirts: 🤍 #ElectronicsCreators #Solar #batterystorage

EEVblog 1494 - FIVE Ways to Open a CHEAP SAFE!

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14.08.2022

FIVE different easy methods to crack into a cheap Sandleford safe found in the dumpster, WITHOUT using physical force. Including a bonus 6th method that doesn't work on this one. Don't buy cheap hardware store safes, they are garbage! Also advice on what to look for in a good quality home security safe, and TDR safes. Plus some lock picking. 00:00 - Don't buy cheap harwdare store safes! 00:47 - The Default Code 01:29 - Picking the cheap wafer lock 02:42 - Bumping the safe 03:28 - How bumping works. A look inside the mechanism 06:35 - Just punch out the cheap lock 07:11 - Coathanger attack 08:24 - They tried to prevent it and STILL failed! LOL 09:23 - Solenoid & Reset code wire attack 11:42 - The physical construction is just LAUGHABLE! 12:36 - Magnetic attack 13:03 - LOL I locked myself out & have to pick it again! 13:41 - So what IS a good quality safe? 16:35 - TDR Safes 17:50 - Inside a good quality key lock safe 19:12 - Conclusion How secure are electronic safe locks? 🤍 Forum: 🤍 Support the EEVblog on: Patreon: 🤍 Odysee: 🤍 Web Site: 🤍 EEVblog2: 🤍 EEVdiscover: 🤍 AliExpress Affiliate: 🤍 Buy anything through that link and Dave gets a commission at no cost to you. Donate With Bitcoin & Other Crypto Currencies! 🤍 T-Shirts: 🤍 #Safes #lockpicking #locksmithing

EEVblog 1479 - Is Your Calculator WRONG?

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15.06.2022

Is your calculator WRONG? It could be! Looking at the issue of implied multiplication and how it can affect your calculations. Why do some Casio and TI calculators give a different result to others? And why do they differ from your phone calculator, google calculator, or Wolfram Alpha? How Order of Operations matters. TI explains the differences in models and why: 🤍 The How and Why of Mathematics video on the issue: 🤍 Forum: 🤍 yeet Support the EEVblog on: Patreon: 🤍 Odysee: 🤍 Web Site: 🤍 EEVblog2: 🤍 EEVdiscover: 🤍 AliExpress Affiliate: 🤍 Buy anything through that link and Dave gets a commission at no cost to you. Donate With Bitcoin & Other Crypto Currencies! 🤍 T-Shirts: 🤍 #ElectronicsCreators #Calculator #maths

EEVblog #1200 - BUSTED! - Energizer & Duracell NiMH

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11.04.2019

Are you getting ripped off with Energizer and Duracell D cell NiMH rechargeable batteries? Why is a D cell NiMh the same capacity or lower than the smaller C or even AA cell? Teardown time! Forum: 🤍 #BUSTED #Energizer #Duracell Bitcoin Donations: 38y7DE8HEHNj8fGDtUr4PkCn9nWxiorvvy Litecoin: ML7oQokTwB38bgzzjLDbRV97HKAHuwRfHA Ethereum: 0x11AceA38DCA9DbFfB4F35f3F746af65F9dED28ce EEVblog Main Web Site: 🤍 The 2nd EEVblog Channel: 🤍 Support the EEVblog through Patreon! 🤍 AliExpress Affiliate: 🤍 Buy anything through that link and Dave gets a commission at no cost to you. Stuff I recommend: 🤍 Donate With Bitcoin & Other Crypto Currencies! 🤍 T-Shirts: 🤍 Likecoin – Coins for Likes: 🤍

EEVblog 1510 - $699 Rigol 12bit HDO1000 Teardown - WOAH!

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25.10.2022

HUGE SURPRISE inside the new low end $699 Rigol 12bit low noise HDO1000 oscilloscope! Hacking forum thread: 🤍 Forum: 🤍 Support the EEVblog on: Patreon: 🤍 Odysee: 🤍 Web Site: 🤍 EEVblog2: 🤍 EEVdiscover: 🤍 AliExpress Affiliate: 🤍 Buy anything through that link and Dave gets a commission at no cost to you. Donate With Bitcoin & Other Crypto Currencies! 🤍 T-Shirts: 🤍 #ElectronicsCreators #Rigol #oscilloscope

EEVblog #600 - OpAmps Tutorial - What is an Operational Amplifier?

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05.04.2014

The most often requested video! In this tutorial Dave explains what Operational Amplifiers (OpAmps) are and how they work. The concepts of negative feedback, open loop gain, virtual grounds and opamp action. The comparator, the buffer, the inverting and non-inverting amplifiers, the differential amplifier, and the integrator circuit configurations are also explained. Then a practical breadboard circuit to demonstrate a virtual ground and the effect of voltage rail limitations. All EEVblog Opamp related videos are here: 🤍 Forum: 🤍 Buy the T-Shirt here! 🤍 EEVblog Main Web Site: 🤍 EEVblog Amazon Store: 🤍 Donations: 🤍 Projects: 🤍 Electronics Info Wiki: 🤍

eevBLAB 101 - Why Are Tektronix Oscilloscopes So Expensive?

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01.09.2022

Answering the question of why Tektronix and the other top tier manufactuer's oscilloscopes are so expensive? Why don't they just make a low cost scope? Here is a list of 16 reasons, can you add more? 00:00 - Why Are Tektronix Oscilloscopes So Expensive? 03:18 - Educational Market 04:00 - Warranty & Service 04:41 - Industrial Components 05:55 - Made in the USA, Supply Chain Assurance, & Export control agreements 07:29 - Applications Support 08:46 - Construction Quality & Consistency 09:07 - Longevity of Production 10:22 - Calibration & Servicing 11:34 - Measurement Confidence 12:25 - Approved Vendors 14:06 - Defacto Standard & Brand Solutions 14:51 - Accesories 15:29 - Pioneers & High end solutions 16:53 - Small things 17:56 - Consistency in User Interface 19:21 - More polished firmware 21:14 - More polished applications software solutions Why are Fluke meters so expensive? 🤍 Alan Wolke W2AEW: 🤍 The Signal Path: 🤍 Forum: 🤍 Support the EEVblog on: Patreon: 🤍 Odysee: 🤍 Web Site: 🤍 EEVblog2: 🤍 EEVdiscover: 🤍 AliExpress Affiliate: 🤍 Buy anything through that link and Dave gets a commission at no cost to you. Donate With Bitcoin & Other Crypto Currencies! 🤍 T-Shirts: 🤍 #ElectronicsCreators #Tektronix #Oscilloscope

EEVblog #1020 - Is A $7 LCR / Component Tester Any Good?

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06.09.2017

Is a $7 LCR Meter / Component Tester from Ebay any good? Dave tests the M328 (LCR-T4) model component tester. HUGE Forum Thread: 🤍 Forum summary videos here: 🤍 This group seems to maintain a version of the firmware: 🤍 EEVblog Main Web Site: 🤍 The 2nd EEVblog Channel: 🤍 Support the EEVblog through Patreon! 🤍 Donate With Bitcoin & Other Crypto Currencies! 🤍 EEVblog Amazon Store (Dave gets a cut): 🤍 T-Shirts: 🤍 💗 Likecoin – Coins for Likes: 🤍

EEVblog 1409 - The DANGERS of Inductor Back EMF

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25.07.2021

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 things you probably haven't seen before. Along with transistor ratings, transistor storage current, and Collector-Emitter breakdown voltage, there is a lot to unpack in this video. This is a follow-on from the DC Transients Fundamentals video: 🤍 00:00 - Recap of Relays, Inductors, Faraday & Lenz's Laws 02:30 - Relay Back EMF Explained 07:09 - The Flywheel analogy of Inductors 08:30 - Relay circuit demonstration 12:35 - 700V Back EMF! 14:43 - BJT Transistor Storage Time 17:03 - Back EMF Diode clamp demonstrated 19:06 - An AMAZING demonstration! 24:43 - Trap for young players 25:23 - DOWNSIDES of Back EMF Diodes 28:38 - BONUS cool effect of Back EMF diode DEMONSTRATED Forum: 🤍 Subscribe on Odysee: 🤍 EEVblog Web Site: 🤍 The 2nd EEVblog Channel: 🤍 EEVdiscover: 🤍 Support the EEVblog through Patreon! 🤍 AliExpress Affiliate: 🤍 Buy anything through that link and Dave gets a commission at no cost to you. Donate With Bitcoin & Other Crypto Currencies! 🤍 T-Shirts: 🤍 #ElectronicsCreators #Tutorial #Inductors

EEVblog 1474 - Can You Measure Capacitors IN Circuit?

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19.05.2022

Can you measure capacitors in-circuit with an LCR meter? Part 1 video: How an LCR meter Works: 🤍 Forum: 🤍 Support the EEVblog on: Patreon: 🤍 Odysee: 🤍 EEVblog Web Site: 🤍 2nd Channel: 🤍 EEVdiscover: 🤍 AliExpress Affiliate: 🤍 Buy anything through that link and Dave gets a commission at no cost to you. Donate With Bitcoin & Other Crypto Currencies! 🤍 T-Shirts: 🤍 #ElectronicsCreators #Measurement #Capacitors

EEVblog 1512 - Why Bypass Your PCB Like THIS?

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02.11.2022

Why add bypass capacitors on a PCB like THIS? Answering a Twitter question: 🤍 Are bypass capacitors really needed? 🤍 Bypass capacitors visualized: 🤍 Bypass capacitor tutorial: 🤍 🤍 🤍 Forum: 🤍 Support the EEVblog on: Patreon: 🤍 Odysee: 🤍 Web Site: 🤍 EEVblog2: 🤍 EEVdiscover: 🤍 AliExpress Affiliate: 🤍 Buy anything through that link and Dave gets a commission at no cost to you. Donate With Bitcoin & Other Crypto Currencies! 🤍 T-Shirts: 🤍 #ElectronicsCreators #Bypassing #pcb

EEVblog 1439 - Analysing Veritasium's Electricity Misconceptions Video

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24.11.2021

Dave analyses Veritasium's video "The Big Misconception About Electricity" and how energy flows in the Poynting vector in the electromagnetic field OUTSIDE the wire instead of inside the wire. 🤍 Extra notes on simulation: 🤍 00:00 - Veritasium's video "The Big Misconception About Electricity" 00:32 - Rection to the points in the video 01:11 - This is a bit MISLEADING! 02:28 - Electron drift 03:51 - Engineers use different tools and theorems 04:27 - Every electrical engineer knows this 05:17 - Everything he says is correct 08:24 - What is current? 09:30 - He doesn't address this in the video. Poynting vectors at DC 11:12 - How the lightbulb works 12:41 - At the physics level, it's correct 14:11 - My only problem with this is... 15:08 - Is it just an academic discussion? 16:17 - The undersea cable is just early transmission line theory 17:20 - So what is the answer to the question? 22:06 - What about skin effect and DC? 25:44 - Let's simulate this and answer the question 29:18 - Transient analysis 33:00 - DC Steady State analysis 34:28 - The quantitative values don't matter 38:25 - But what about DC steady state? 40:24 - What does Richard Feynman think? Forum: 🤍 Subscribe on Odysee: 🤍 EEVblog Web Site: 🤍 The 2nd EEVblog Channel: 🤍 EEVdiscover: 🤍 Support the EEVblog through Patreon! 🤍 AliExpress Affiliate: 🤍 Buy anything through that link and Dave gets a commission at no cost to you. Donate With Bitcoin & Other Crypto Currencies! 🤍 T-Shirts: 🤍 #ElectronicsCreators #Veritasium #Electricity

EEVblog 1507 - Mida: A surprisingly good cheap portable EVSE

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12.10.2022

Teardown of the cheapest portable EVSE available in Australia, the 15A Mida Type 2 portable electric car charger. 🤍 Zappi solar EV charger: 🤍 Forum: 🤍 Support the EEVblog on: Patreon: 🤍 Odysee: 🤍 Web Site: 🤍 EEVblog2: 🤍 EEVdiscover: 🤍 AliExpress Affiliate: 🤍 Buy anything through that link and Dave gets a commission at no cost to you. Donate With Bitcoin & Other Crypto Currencies! 🤍 T-Shirts: 🤍 #ElectronicsCreators #EVSE #ElectricCar

EEVblog #873 - World's Most Dangerous Consumer Product!

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26.04.2016

Dave looks at possibly the world's most dangerous consumer product, a portable electrode boiler based water heater available on ebay. Marketed as "safe", it is nothing less than a death trap! EDIT: Holy crap! They sell this as a baby bath heater! 🤍 Forum: 🤍 EEVblog Main Web Site: 🤍 The 2nd EEVblog Channel: 🤍 Support the EEVblog through Patreon! 🤍 EEVblog Amazon Store (Dave gets a cut): 🤍 T-Shirts: 🤍 💗 Likecoin – Coins for Likes: 🤍

EEVblog 1513 - Dumpster Tossers Have No Shame!

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04.11.2022

A surprising dumptser diving find that might prove we live in a simulation. A Sony GTK-X1BT bluetooth enabled party jukebox Hi-Fi speaker system. Forum: 🤍 00:00 - Dumpster Diving find, a Sony GTK-X1BT 03:44 - Does it work? 06:04 - Sound quality 07:02 - Teardown 09:58 - Power Amp 14:00 - The ethics of dumpster tossing 17:46 - Could this be turned into a Jukebox? Support the EEVblog on: Patreon: 🤍 Odysee: 🤍 Web Site: 🤍 EEVblog2: 🤍 EEVdiscover: 🤍 AliExpress Affiliate: 🤍 Buy anything through that link and Dave gets a commission at no cost to you. Donate With Bitcoin & Other Crypto Currencies! 🤍 T-Shirts: 🤍 #ElectronicsCreators #dumpsterdiving #Sony

EEVblog 1410 - Mailbag

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29.07.2021

Mailbag! Froum: 🤍 SPOILERS: 00:00 - Dancom RT403B 25W VHF Marine Transceiver teardown. 09:07 - Workbench of the week, Tony Albus: 🤍 TEA: 🤍 12:36 - Riedon SSA-100 100A Differential Isolated Current Sensor. 🤍 🤍 22:19 - DODGY! Soviet era mains rechargable torch 27:36 - Jon Newcomb's Microcontroller Proto Boards 🤍 33:57 - Affable Snake Breadboard LED bargraph 🤍 35:34 - Mystery $2 ebay item DESTROYED by Widlarizer! 37:47 - Present from a 13yo viewer 39:40 - Multimeter PicoProbes: 🤍 Subscribe on Odysee: 🤍 EEVblog Web Site: 🤍 The 2nd EEVblog Channel: 🤍 EEVdiscover: 🤍 Support the EEVblog through Patreon! 🤍 AliExpress Affiliate: 🤍 Buy anything through that link and Dave gets a commission at no cost to you. Donate With Bitcoin & Other Crypto Currencies! 🤍 T-Shirts: 🤍 #ElectronicsCreators #Mailbag

EEVblog 1485 - PedalCell CadenceX Bike Generator LOL FAIL!

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06.07.2022

The failed PedalCell CadenceX Bike Generator from the previous mailbag video is tested, torn down, analysed, hilrariously laughed at, and dodgily repaired. 🤍 00:00 - Failed Pedalcell generator - getting the pinout 02:00 - The PCB 02:40 - Oscilloscope rotation test 03:45 - Dremel speed Captain! 04:22 - Generator teardown 05:32 - Hmm, what's going on with these stator coils 06:00 - Hall effect sensors 06:58 - A-HA Gotcha. These magnets make no sense at all! 08:47 - Someone skimped at the glue factory 11:27 - It's just a BLDC Brusshless DC motor being used as a generator 12:48 - Nothing that can't be fixed with some epoxy 14:00 - Vrooooom! Forum: 🤍 Support the EEVblog on: Patreon: 🤍 Odysee: 🤍 Web Site: 🤍 EEVblog2: 🤍 EEVdiscover: 🤍 AliExpress Affiliate: 🤍 Buy anything through that link and Dave gets a commission at no cost to you. Donate With Bitcoin & Other Crypto Currencies! 🤍 T-Shirts: 🤍 #ElectronicsCreators #FAIL #Pedalcell

EEVblog 1514 - Sonos: The Juicero of Wifi Speakers? (TEARDOWN)

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14.11.2022

Dumpster teardown of a Sonos Play 5 Gen 1 Wifi speaker system. Is this the Juicero of wifi speakers? or is it just a really well designed active speaker? Amp Hour Interview with a Sonos designer: 🤍 Forum: 🤍 Gen 2 teardown photos: 🤍 00:00 - Another Dumpster Diving find 02:09 - Bonus dumpster item, new in box 03:14 - Does it work? 03:33 - The Sonos app really sucks 05:21 - Removing the front grill 06:07 - FINALLY got the stupid thing connected, and likely the reason it was tossed 06:34 - Teardown 07:34 - The very nice Wifi antenna 08:01 - Inside 09:07 - Main Peerless drivers 09:56 - Anti-vibration as far as the eye can see 11:18 - Is this Juicero levels of engineering? 14:26 - That's not a board mount, THIS is a board mount 16:43 - Surprising class D amps Support the EEVblog on: Patreon: 🤍 Odysee: 🤍 Web Site: 🤍 EEVblog2: 🤍 EEVdiscover: 🤍 AliExpress Affiliate: 🤍 Buy anything through that link and Dave gets a commission at no cost to you. Donate With Bitcoin & Other Crypto Currencies! 🤍 T-Shirts: 🤍 #ElectronicsCreators #dumpsterdiving #sonos

EEVblog 1475 - What's This SMD Part?

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26.05.2022

Answering another viewer question. Can we identify or find an alternative for this SMD part? 🤍 Forum: 🤍 Support the EEVblog on: Patreon: 🤍 Odysee: 🤍 Web Site: 🤍 EEVblog2: 🤍 EEVdiscover: 🤍 AliExpress Affiliate: 🤍 Buy anything through that link and Dave gets a commission at no cost to you. Donate With Bitcoin & Other Crypto Currencies! 🤍 T-Shirts: 🤍 #ElectronicsCreators #SMD #Components

EEVblog 1499 - EcoFlow Delta Pro 3.6kWh Portable Battery TEARDOWN!

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08.09.2022

Teardown of the EcoFlow Delta Pro 3.6kWh portable/home LiFePO4 battery solar inverter/generator. Back in the old EEVblog garage! Teardown photos: 🤍 Forum: 🤍 00:00 - Back in the old EEVblog garage! 00:30 - EcoFlow Delta Pro LiFePO4 battery solar inverter/generator 06:31 - Possible cooling issue with multiple units 06:57- Teardown 10:50 - It's built like a brick dunny 12:06 - These mains spade lugs are DODGY! 12:45 - Extra battery input PCB 14:13 - Front AC and USB output PCBs 16:22 - AC output PCB 17:18 - The battery cage 18:01 - EV charger connection 18:38 - Solar MPPT controller PCB 21:55 - Inverter and charger PCB 24:04 - Getting to the battery PCB 25:13 - Battery Managment System BMS PCB 29:04 - Measuring the battery pack voltage 30:03 - Charger/Inverter PCB up close 33:00 - Battery pack PCB 35:09 - Conclusion Support the EEVblog on: Patreon: 🤍 Odysee: 🤍 Web Site: 🤍 EEVblog2: 🤍 EEVdiscover: 🤍 AliExpress Affiliate: 🤍 Buy anything through that link and Dave gets a commission at no cost to you. Donate With Bitcoin & Other Crypto Currencies! 🤍 T-Shirts: 🤍 #ElectronicsCreators #EcoFlow #solar

LitePlacer Pick & Place Machine - Should I build it?

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21.11.2022

If I build the LitePlacer pick and place kit, will the views come? Or would you prefer I buy a $5k commercial machine with all the feeders and see what that is capable of warts and all? Unexpected Maker: 🤍 Bunker cleanup EXCLUSIVE Odysee video: 🤍 🤍 🤍 Support the EEVblog on: Patreon: 🤍 Odysee: 🤍 EEVblog Web Site: 🤍 Main Channel: 🤍 EEVdiscover: 🤍 AliExpress Affiliate: 🤍 Buy anything through that link and Dave gets a commission at no cost to you. Donate With Bitcoin & Other Crypto Currencies! 🤍 T-Shirts: 🤍 #ElectronicsCreators #PickAndPlace #PCB

EEVblog #1132 - The 3 Cent Microcontroller!

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10.10.2018

Taking a look at a sub 3 cent microcontroller, and other obscure Chinese manufactures, how to find them, and were to get them in stock. 🤍 🤍 Forum: 🤍 EEVblog Main Web Site: 🤍 The 2nd EEVblog Channel: 🤍 Support the EEVblog through Patreon! 🤍 AliExpress Affiliate: 🤍 Buy anything through that link and Dave gets a commission at no cost to you. Stuff I recommend: 🤍 Donate With Bitcoin & Other Crypto Currencies! 🤍 T-Shirts: 🤍 💗 Likecoin – Coins for Likes: 🤍 💗 Likecoin – Coins for Likes: 🤍

EEVblog #859 - Bypass Capacitor Tutorial

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10.03.2016

Everything you need to know about bypass capacitors. How do they work? Why use them at all? Why put multiple ones in parallel? What effect does package type have on performance? Are there any traps? Dave measures some bypass capacitors with an impedance analyser to confirm the whiteboard theory and shows the complexities involved. Previous video on Electrolytic capacitors in parallel: 🤍 Reverse geometry packages: 🤍 Low inductance chip capacitors: 🤍 Forum: 🤍 EEVblog Main Web Site: 🤍 The 2nd EEVblog Channel: 🤍 Support the EEVblog through Patreon! 🤍 EEVblog Amazon Store (Dave gets a cut): 🤍 T-Shirts: 🤍 Donations: 🤍 Projects: 🤍 Electronics Info Wiki: 🤍 💗 Likecoin – Coins for Likes: 🤍

eevBLAB 91 - Why Are Fluke Meters So EXPENSIVE?

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00:17:48
15.12.2021

8 industry reasons why Fluke meters are so expensive, and why people still buy them. You might be surprised by some of the reasons and have not encountered this thinking before in the industry. Part 2: The Teardown 🤍 NOT sponsored by Fluke. In fact you should buy my BM786 for 20% off using the coupon code 555, way cheaper and better than a Fluke: 🤍 00:00 - Why are Fluke meters so expensive? 02:27 - Reason #1: Lifetime Warranty 02:49 - Reason #2: Made in the USA 03:38 - Reason #3: Longevity of Production 07:24 - Reason #4: Measurement Confidence 12:08 - Reason #5: Construction Quality & Consistency 12:27 - Reason #6: World class Standards & Calibration 13:15 - Reason #7: They are the Defacto Standard, and premium player 13:53 - Reason #8: Calibration Procedures & Service Information What is calibration: 🤍 Keysight metrology standards lab: 🤍 Forum: 🤍 Subscribe on Odysee: 🤍 EEVblog Web Site: 🤍 The 2nd EEVblog Channel: 🤍 EEVdiscover: 🤍 Support the EEVblog through Patreon! 🤍 AliExpress Affiliate: 🤍 Buy anything through that link and Dave gets a commission at no cost to you. Donate With Bitcoin & Other Crypto Currencies! 🤍 T-Shirts: 🤍 #ElectronicsCreators #Fluke #Multimeter

EEVblog 1486 - What you DIDN'T KNOW About Film Capacitor FAILURES!

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15.07.2022

You might think you know how film capacitors fail and degrade in capacitance over time - self-healing due to surges, right? WRONG! Capacitor expert and AVX Fellow Ron Demcko confirms what's really going on after a teardown of some failed and one good polypropylene X class capacitor. 00:00 - Teardown of a some failed film capacitors 00:52 - Self Healing and drop in capacitance 01:44 - Capacitance Measurements 02:15 - Teardown of a new Suntan brand polypropylene X2 film capacitor 03:03 - Different failure modes based on size and winding pressure 05:52 - Unwrapping the film 07:51 - The film inside a NEW film capacitor 09:19 - Teardown of the FAILED uTx brand heater capacitor with half capacitance 10:06 - How Schoopage and the end pin terminations work 12:23 - Teardown continues... 12:45 - WOW! What on earth is this? 14:54 - Elecami Wolf also did a teardown 16:05 - Teardown continues... 17:01 - Separating the film showing both slef-healing and extensive metal film corrosion 18:29 - Another uTx brand failed film capacitor from a Corsair PSU, with 90% loss in capacitance! Elecami Wolf Youtube Channel: 🤍 19:55 - Let's call an expert! Ron Demcko from AVX tells us the REAL REASON for the failure! It's moisture ingress and corona demetallization! Full discussion with Ron Demcko: 🤍 Metallized Film Capacitor Lifetime Evaluation and Failure Mode Analysis report: 🤍 Film Capacitors construction: 🤍 Film Capacitors self-healing explanation: 🤍 Film Capacitor types: 🤍 Forum: 🤍 Support the EEVblog on: Patreon: 🤍 Odysee: 🤍 Web Site: 🤍 EEVblog2: 🤍 EEVdiscover: 🤍 AliExpress Affiliate: 🤍 Buy anything through that link and Dave gets a commission at no cost to you. Donate With Bitcoin & Other Crypto Currencies! 🤍 T-Shirts: 🤍 #ElectronicsCreators #Capacitors #Teardown

EEVblog 1438 - The TOP 5 Jellybean Regulators & References

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18.11.2021

Dave looks at his TOP 5 (plus change) Jellybean Voltage Regulators and References, and explains why you need to know them. 00:00 - Jellybean Voltage Regulator & References 01:52 - 78xx Linear Voltage Regulator 08:01 - Adjustable Voltage Regulator 13:52 - 1117 Low Dropout Regulator 15:21 - LDO Stability 20:01 - LM4040/4041 Voltage Reference 24:38 - Using a Reference as a Regulator 30:53 - TL431 Voltage Reference 38:58 - Use as a PSU regulator 40:43 - Beware of Stability 41:43 - REF01 a better Voltage Reference LM7805: 🤍 LM317: 🤍 LM317L: 🤍 1117: 🤍 LM4040/4041: 🤍 TL431: 🤍 REF01: 🤍 TL431 Design: 🤍 Uuderstanding LT431 Stability: 🤍 The TL431 in Switching Controllers: 🤍 Forum: 🤍 Subscribe on Odysee: 🤍 EEVblog Web Site: 🤍 The 2nd EEVblog Channel: 🤍 EEVdiscover: 🤍 Support the EEVblog through Patreon! 🤍 AliExpress Affiliate: 🤍 Buy anything through that link and Dave gets a commission at no cost to you. Donate With Bitcoin & Other Crypto Currencies! 🤍 T-Shirts: 🤍 #ElectronicsCreators #Jellybean

EEVblog #1352 - Aircraft Transponder TEARDOWN!

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04.12.2020

Teardown of a Made in Australia MicroAir T2000 aircraft transponder. 🤍 Forum: 🤍 Subscribe on Library: 🤍 EEVblog Web Site: 🤍 The 2nd EEVblog Channel: 🤍 EEVdiscover: 🤍 Support the EEVblog through Patreon! 🤍 AliExpress Affiliate: 🤍 Buy anything through that link and Dave gets a commission at no cost to you. Donate With Bitcoin & Other Crypto Currencies! 🤍 T-Shirts: 🤍 #Teardown #Aircraft #Transponder

EEVblog 1501 - Rigol HDO4000 Low Noise 12bit Oscilloscope Unboxing & First Impression

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20.09.2022

Rigol's new HDO4000 Series ultra low noise 12bit oscilloscope with Centaur chipset. Unboxing, first impression, and noise measurements. AC RMS noise measurement: 🤍 Can your oscilloscope Zoom Out?: 🤍 Forum: 🤍 Support the EEVblog on: Patreon: 🤍 Odysee: 🤍 Web Site: 🤍 EEVblog2: 🤍 EEVdiscover: 🤍 AliExpress Affiliate: 🤍 Buy anything through that link and Dave gets a commission at no cost to you. Donate With Bitcoin & Other Crypto Currencies! 🤍 T-Shirts: 🤍 #ElectronicsCreators #Rigol #Oscilloscope

EEVBlog #1116 - How to Remove Power Supply Ripple

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27.08.2018

Circuit building block time. The capacitance multiplier and how it gives almost negligible power supply ripple compared to a voltage regulator. Whiteboard theory and then some bench demonstrations and experiments. Plus a twist at the end that proves that the "Capacitance multiplier" is perhaps one of the most mis-named circuits of all time. Forum: 🤍 EEVblog Main Web Site: 🤍 The 2nd EEVblog Channel: 🤍 Support the EEVblog through Patreon! 🤍 Stuff I recommend: 🤍 Donate With Bitcoin & Other Crypto Currencies! 🤍 T-Shirts: 🤍 Likecoin – Coins for Likes: 🤍 💗 Likecoin – Coins for Likes: 🤍

EEVblog #1369 - Xiaomi Mi Air Wireless Charging BUSTED!

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00:19:59
30.01.2021

Dave debunks the Xiaomi Mi Air wireless charging system that claims to be able to charge at 5W up to several meters using mm wave RF beam steering technology. Where have we heard this before? The Signal Path: 🤍 Shahriar 5G video: 🤍 The Amp Hour 5G episode: 🤍 🤍 Forum: 🤍 Subscribe on Odysee: 🤍 EEVblog Web Site: 🤍 The 2nd EEVblog Channel: 🤍 EEVdiscover: 🤍 Support the EEVblog through Patreon! 🤍 AliExpress Affiliate: 🤍 Buy anything through that link and Dave gets a commission at no cost to you. Donate With Bitcoin & Other Crypto Currencies! 🤍 T-Shirts: 🤍 #Xiaomi #WirelessCharging #Debunk

EEVblog #1248 - INSANE! A 0.02% Process Meter for $9? WTF!

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28.09.2019

Dave found this crazy bargain of the century no-name $9 0.02% class multifuction process calibrator on Aliexpress. Is it any good? Actually, it's an AIMOmeter AMPX1 that sells for over $200 on ebay, so what gives? How can they possibly manufacture and sell a 0.02% class device for under ten bucks? Teardown time. Links to stores with availability, grab two before they are gone: GONE! 🤍 GONE! 🤍 GONE! 🤍 GONE! 🤍 GONE! 🤍 GONE! 🤍 GONE! 🤍 GONE! 🤍 GONE! 🤍 🤍 🤍 🤍 🤍 Forum: 🤍 Bitcoin Donations: 38y7DE8HEHNj8fGDtUr4PkCn9nWxiorvvy Litecoin: ML7oQokTwB38bgzzjLDbRV97HKAHuwRfHA Ethereum: 0x11AceA38DCA9DbFfB4F35f3F746af65F9dED28ce EEVblog Main Web Site: 🤍 The 2nd EEVblog Channel: 🤍 Support the EEVblog through Patreon! 🤍 AliExpress Affiliate: 🤍 Buy anything through that link and Dave gets a commission at no cost to you. Stuff I recommend: 🤍 Donate With Bitcoin & Other Crypto Currencies! 🤍 T-Shirts: 🤍 Likecoin – Coins for Likes: 🤍

eevBLAB 103 - Is an $800 Oscilloscope OVERKILL?

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21.10.2022

Is an $800 oscillscope overkill for a hobbyist? At what level does an oscilloscope become "overkill"? Forum: 🤍 Support the EEVblog on: Patreon: 🤍 Odysee: 🤍 Web Site: 🤍 EEVblog2: 🤍 EEVdiscover: 🤍 AliExpress Affiliate: 🤍 Buy anything through that link and Dave gets a commission at no cost to you. Donate With Bitcoin & Other Crypto Currencies! 🤍 T-Shirts: 🤍 #ElectronicsCreators #oscilloscope #hobbyist

EEVblog 1482 - Mains Capacitor Zener Regulator Circuit

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00:18:52
23.06.2022

A follow up to the previous video on repairing the heater. A viewer asked how the capacitor diode rectifier gave a 24V output. The key is in the zener regulator, so this vidoe looks at how mains powered zener voltage regulators work, and their limitations. X class capacitor and self healing. Zener diode tutorial video: 🤍 Dodgy Dangerous Repait video: 🤍 Forum: 🤍 Support the EEVblog on: Patreon: 🤍 Odysee: 🤍 Web Site: 🤍 EEVblog2: 🤍 EEVdiscover: 🤍 AliExpress Affiliate: 🤍 Buy anything through that link and Dave gets a commission at no cost to you. Donate With Bitcoin & Other Crypto Currencies! 🤍 T-Shirts: 🤍 #ElectronicsCreators #Tutorial #Zener

EEVblog 1505 - 120W Home Phantom Power? Audit Time!

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04.10.2022

My home takes 120W phantom standby power. Let's do a complete audit and see what is consuming the most power, and how it can be reduced. How bad product design kills the environment: 🤍 Forum: 🤍 00:00 - Standby power measurement audit 07:52- The fuse box 11:46 - Spreadsheet analysis and differential power measurement Support the EEVblog on: Patreon: 🤍 Odysee: 🤍 Web Site: 🤍 EEVblog2: 🤍 EEVdiscover: 🤍 AliExpress Affiliate: 🤍 Buy anything through that link and Dave gets a commission at no cost to you. Donate With Bitcoin & Other Crypto Currencies! 🤍 T-Shirts: 🤍 #ElectronicsCreators #phantompower #solar

EEVblog 1458 - Microscope Polarising MAGIC!

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18.02.2022

Can't see those pesky laser etched part numbers on chips? Dave demonstrates what's happening with the microscope polarising filter lenses on Twitter that's blowing people's minds. Does it actually work? And other tricks of the trade. DIY Light box for PCB photography: 🤍 🤍 🤍 Aputure Amaran AL-M9 LED light 🤍 Leica microscope brochure: 🤍 Forum: 🤍 Support the EEVblog on: Locals: 🤍 Patreon: 🤍 Odysee: 🤍 EEVblog Web Site: 🤍 2nd Channel: 🤍 EEVdiscover: 🤍 AliExpress Affiliate: 🤍 Buy anything through that link and Dave gets a commission at no cost to you. Donate With Bitcoin & Other Crypto Currencies! 🤍 T-Shirts: 🤍 #ElectronicsCreators #Microscope #Polarizing

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