PODCAST

EEVblog

David L. Jones

No Script, No Fear, All Opinion

education

All Episodes

31:18

EEVblog 1662 – Vintage Tandy 200 Portable Computer...

EEVblog ·

2025/01/24

This was going to be a repair of a vintage Tandy 200 Portable Computer… Forum: https://www.eevblog.com/forum/blog/eevblog-1662-vintage-tandy-200-portable-computer-claytons-repairteardown/ 00:00 – I sear this Tandy 200 had a problem… 02:54 – Teardown 03:57 – The new BM2257 Multimeter 05:25 – I think it’s the buzzer 08:06 – Microscope teardown 16:20 – They don’t make service manuals like they …

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12:10

EEVblog 1661 – AC Basics Tutorial Part 5: Time Domain...

EEVblog ·

2025/01/11

The difference between Time Domain and Frequency Domain in AC circuit analysis. AC Theory Playlist: https://www.youtube.com/playlist?list=PLvOlSehNtuHvD6M_7WeN071OVsZFE0_q- Forum: https://www.eevblog.com/forum/blog/eevblog-1661-ac-basics-tutorial-part-5-time-domain-vs-frequency-domain/

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17:55

EEVblog 1660 – AC Basics Tutorial Part 4: Resistors,...

EEVblog ·

2025/01/05

Part 4 in the AC basics tutorial series. AC applied to resistors, capacitors and inductors, along with Capacitive Reactance and Inductive reactance. AC Theory Playlist

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31:29

EEVblog 1659 – Quick 861 Pro Hot Air Station REVIEW

EEVblog ·

2025/01/03

Review of the new Quick 861 Pro hot air station compared to the original 861DW. Forum: https://www.eevblog.com/forum/blog/eevblog-1659-quick-861-pro-hot-air-station-review/

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16:04

EEVblog 1658 – TUTORIAL: Mean vs Median

EEVblog ·

2024/12/28

It’s important to understand the difference between Mean and Median, not just for engineering, but for everyday life, so you don’t get manipulated by people with bad intentions. UBS Global Wealth Report: https://www.ubs.com/content/dam/assets/wm/global/insights/doc/global-wealth-report.pdf Forum: https://www.eevblog.com/forum/blog/eevblog-1658-tutorial-mean-vs-median/

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26:22

EEVblog 1657 – DUMPSTER Samsung 75″ QLED One Connect TV

EEVblog ·

2024/12/20

Almost 30 minutes of tearing down a Samsung 75″ QLED One Connect dumpster TV and trying to power it up to see if it’s busted or not. QA75Q7FNA 00:00 Dumpster Samsung QLED 75″ 04:46 – Teardown wasn’t easy as expected… 08:11 – What is this cable retention BS? 11:26 – I’m still at it… 14:22 …

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28:59

EEVblog 1656 – MAILBAG: ElectroPermanent Magnet, DIN...

EEVblog ·

2024/12/18

More Mailbag! 00:00 – DPS Ultrathin DIN 5V PSU’s https://digitalpowersystems.eu/de/standard-produkte/ 01:15 – The Knife 06:16 – USB-C Isolator https://digitalpowersystems.eu/de/schnelle-und-sichere-usb-zu-uart-kommunikation-dank-digitaler-isolierung-und-esd-schutz-fur-ein-und-ausgange/ 07:34 – Zubax FluxGrip FG40 Electropermanent Magnet for Drones https://zubax.com/products/magnets/fluxgrip/fg40 11:55 – Testing the magnet 14:04 – Drone delivered multimeters? 14:53 – Why did someone send this? 15:46

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9:10

EEVblog 1655 – How to Discharge Capacitors SAFELY...

EEVblog ·

2024/12/09

You can use almost any decent modern multimeter to safely discharge high voltage capacitor banks WITHOUT a LowZ function. Forum: https://www.eevblog.com/forum/blog/eevblog-1655-multimeter-tip-discharge-capacitors-using-any-meter/ Transistor Zener Clamp video: https://www.youtube.com/watch?v=BGcKjy_UNQ4

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2:58:07

EEVblog 1654 – Lee Felsenstein: The Computer...

EEVblog ·

2024/11/29

A full 3 hour discussion with the legendary Lee Felsenstein, designer of the Osborne 1, SOL computer, VDM-1, Pennywhistle modem, and the inventor of social media. Covering everything from the Berkeley free speech movement, the counterculture movement, his career, through to Obsorne and how he invented social media with Community Memory. His book: https://www.amazon.com/Me-My-Big-Ideas-Counterculture/dp/B0DJ8T45F1/ https://felsensigns.com/ …

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14:56

EEVblog 1653 – Alkaline Battery Leakage Testing 2 –...

EEVblog ·

2024/11/22

Revisiting the alkaline battery leakage testing with a 555 circuit from a viewer. Forum: https://www.eevblog.com/forum/blog/eevblog-1653-alkaline-battery-leakage-testing-2-electric-boogaloo/ Final results of the first leakage testing: https://www.youtube.com/watch?v=BScnU4BT4xk

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7:15

EEVblog 1652 – Why is my Lab Switchboard Wired Like...

EEVblog ·

2024/11/22

Why is my lab power switchboard wired like this? Forum: https://www.eevblog.com/forum/blog/eevblog-1652-why-is-my-lab-switchboard-wired-like-this/

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36:42

EEVblog 1651 – Home Electrical Switchboard UPGRADE!

EEVblog ·

2024/11/12

I’m finally upgrading the infamous rats nest home switchboard! https://insightelectrical.com.au/ Forum: https://www.eevblog.com/forum/blog/eevblog-1651-home-electrical-switchboard-upgrade/ 00:00 – A look at the old switchboard 03:29 – Single Phase 04:57 – Surge protection 05:28 – Old school ceramic fuses 06:04 – Inside the infamous Rats Nest! 08:29 – Simon from Insight Electrical 09:09 – Could you still do wiring like …

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18:38

EEVblog 1650 – Sequre HT-140 SMD Desoldering Tweezers...

EEVblog ·

2024/11/06

Review of the Sequre HT-140 USB-C Desoldering Tweezers https://sequremall.com/collections/diy-tools/products/sequre-ht140-2in1-hot-tweezers-soldering-iron-desoldering-repair-tool-for-smd?variant=44204748275900 Forum: https://www.eevblog.com/forum/blog/eevblog-1650-sequre-ht-140-smd-desoldering-tweezers-review/

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54:12

EEVblog 1649 – Mailbag: M5stack, Beelink Mini PC,...

EEVblog ·

2024/10/31

More mailbag! 00:00 – Everyones favourite segment! 01:00 – The very clever Edge Wedge from Metric Mind – Zero footprint programing header https://metricmind.com/ 05:19 – M5Stack Embedded processor modules https://shop.m5stack.com/products/m5stack-core2-esp32-iot-development-kit 11:28 – Err, the polarity is BACKWARDS! 12:41 – The M5stack website and UIflow2 GUI software 21:20 – Teardown of the M5stack Core2 module 23:16 …

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EEVblog 1648 – USB Battery Bank mAh Capacity ratings...

EEVblog ·

2024/10/31

USB Battery bank charger capacity explained. When you are comparing battery banks you want to use a measured Output Referred capacity figure, not an Input Referred mAh or Wh figure the manufacturers marketing department gives you. Forum: https://www.eevblog.com/forum/blog/eevblog-1648-input-vs-output-referred-battery-capacity-explained/

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EEVblog 1647 – Road Based Energy AGAIN. Rouute vs...

EEVblog ·

2024/10/24

You might have thought the Rouute road based energy system was gone, but like a phoenix it has returned from the grifting ashes as R-2ENERGY! Sadly, Discount Morgan Freeman has been replaced by discount Joe Average https://www.r-2e.com/ https://find-and-update.company-information.service.gov.uk/company/11768960 https://www.linkedin.com/company/r-2energy/ Forum: https://www.eevblog.com/forum/blog/eevblog-1647-road-based-energy-again-rouute-vs-r-2energy/ The original video has the full debunk on why

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38:23

EEVblog 1646 – iFixIt FixHub Portable USB Soldering...

EEVblog ·

2024/10/22

FixHub portable soldering station REVIEW https://www.ifixit.com/products/fixhub-power-series-portable-soldering-station Just the iron: https://www.ifixit.com/products/fixhub-power-series-smart-soldering-iron Schematic: https://www.ifixit.com/Document/MeQmLlLKT2LSSKFY/Portable-Power-Station-Electrical-Schematics.pdf Repair Guide: https://www.ifixit.com/Device/FixHub_Portable_Power_Station 3D Model: https://www.printables.com/model/1018125-fixhub-power-series-portable-power-station/ How intercreate

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17:50

EEVblog 1645 – $80 Quick TS11 Soldering Station REVIEW

EEVblog ·

2024/10/14

Is the US$80 Quick TS11 80W Soldering station any good? SPOILER: Nope, it’s pretty terrible. Forum: https://www.eevblog.com/forum/blog/eevblog-1645-$80-quick-ts11-soldering-station-review/

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40:31

EEVblog 1644 – Mailbag: CrowView Monitor, Casio Game,...

EEVblog ·

2024/10/08

More mailbag! 00:00 – Crowview Monitor & Keyboard https://www.elecrow.com/crowview-note-all-in-one-portable-monitor-phone-to-laptop-device-with-full-featured-type-c-sbcs-mini-pc-pc-game-console-compatibility.html 08:11 – Casio Border Army Game+Watch 11:34 – Minipa ET-1700 Pocket Multimeter 13:24 – Adafruit PCB Ruler 14:14 – PASS Card Game 15:13 – Crusty Raspberry Pi 17:40 – Sinusoid 4-20mA Rotary Encoder 29:29 – Wurkkos H1 USB Battery Bank 36:05 – Rulerize, transparent ruler sticker …

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9:05

EEVblog 1643 – DON’T BUY this Cheap 7kW 32A EV Charger

EEVblog ·

2024/10/01

You get what you pay for in EV chargers. Don’t buy this super cheap New Energy brand 7kW 32A EVSE Charger. Does it even meet the IEC 62752 it claims on the label? Or the US UL 2231 standard? MIDA brand EVSE: https://www.youtube.com/watch?v=SrZgN_EuRGw

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