PODCAST

EEVblog

David L. Jones

No Script, No Fear, All Opinion

technology podcasting

All Episodes

EEVblog 1609 – Composite Amplifier Tutorial +...

EEVblog ·

2024/04/10

A lot of texbooks don’t teach Composite Amplifiers, but they are one of the most used circuit configurations to solve real world design poblems where you have multiple conflicting specifications. Opamp Tutorial Playlist: https://www.youtube.com/playlist?list=PLvOlSehNtuHu2FviAaZaiyXwN41G4b1Lf Cascaded Compound Amplifiers: https://www.youtube.com/watch?v=ZvT9hHG17tQ Forum: https://www.eevblog.com/forum/blog/eevblog-1609-composite-amplifier-tutorial-practical-demo/ 00:00 – Composite vs

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EEVblog 1608 – Mailbag

EEVblog ·

2024/04/06

More mailbag! 00:00 – Jumperless Breadboard from Architeuthis Flux & WokWi https://www.tindie.com/products/architeuthisflux/jumperless/ https://hackaday.io/project/191238-jumperless/log/222858-getting-started-using-your-jumperless https://wokwi.com/ https://www.digikey.com/en/maker/projects/jumperless/2e62cc88ee6145bc924041dd486de76f https://theamphour.com/599-an-interview-with-uri-shaked-wokwi-com/ 08:42 – Trying the software, it didn’t go so well… 21:20 –

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EEVblog 1607 – PSU Switching Noise Reduction via...

EEVblog ·

2024/03/31

Physically vibrating your power supply at a sub harmonic of your PSU switching frequency can potentially lower your system noise. A practical demonstration. AlienTek DP100: https://s.click.aliexpress.com/e/_DeWCLIN Forum: https://www.eevblog.com/forum/blog/eevblog-1607-psu-switching-noise-reduction-via-vibration/ Linked videos: Tesla AI PSU problem: https://www.youtube.com/watch?v=YIbQ3nudCA0 Vibration coherence: https://www.youtube.com/watch?v=uus_cpZiqsU Vibration testing:

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EEVblog 1606 – $45 AlienTek DP100 100W USB-C PSU REVIEW

EEVblog ·

2024/03/29

AlienTek DP100 100W USB-C PSU REVIEW https://s.click.aliexpress.com/e/_DeWCLIN PSU Noise measurement: https://www.youtube.com/watch?v=G8Qoj3TpO9A Forum: https://www.eevblog.com/forum/blog/eevblog-1606-$45-alientek-dp100-100w-usb-c-psu-review/ 00:00 – AlienTek DP100 100W USB-C PSU Unboxing 02:43 – Power on and operation 08:57 – User Manual 10:01 – Trying USB-C source 10:44 – Setting Menu 12:00 – uSupply Inception 12:55 – Physical size comparison 13:16 –

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27:55

EEVblog 1605 – Chasing Fart Noises – JBL Charge 3...

EEVblog ·

2024/03/16

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 02:17 – Teardown 07:13 – …

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6:23

EEVblog 1604 – BEWARE! Multimeter Burden Voltage

EEVblog ·

2024/03/06

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/

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EEVblog 1603 – Colas Wattway Solar Roadways is DEAD

EEVblog ·

2024/03/06

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: https://www.auto-moto.com/en-bref/cette-route-solaire-qui-a-coute-5-millions-d-euros-va-etre-demantelee-30624

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44:51

EEVblog 1602 – Sony Amplifier REPAIR ADVENTURE

EEVblog ·

2024/03/05

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/ 00:00 – Sony HCD-SBT20B

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10:06

EEVblog 1601 – How VFD (Vacuum Fluorescent) Displays...

EEVblog ·

2024/03/05

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/

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EXCLUSIVE Haefely ESD Gun Unboxing

EEVblog ·

2023/10/13

EXCLUSIVE video: Haefely ESD Gun Unboxing

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EEVblog 1570 – Tesla DIESEL Electric Train FAIL at...

EEVblog ·

2023/10/04

Tesla unveiled to much fanfare, a DIESEL electric train to carry workers to and from their Berlin Gigafactory. LOL! Dave runs the numbers on whether or not they could have used a Battery Electric Train (BEMU) instead of diesel electric. And could they have powered it from the solar panels on the train station roof? …

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WEBSITE EXCLUSIVE! Rigol DHO800 Oscilloscope Unboxing

EEVblog ·

2023/09/01

The Rigol DHO800 might very well be a revolution in the entry level oscilloscope market. 12bit, touch screen, HDMI, VESA mount, USB-C powered starting from from US$329 This is NUTS! And it’s super cute. Are 8 bit scopes DEAD?

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EEVblog 1555 – Korean LK-99 Ambient Temperature...

EEVblog ·

2023/07/30

Has a Korean quantum research group cracked the holy grail of physics, an ambient temperature and pressure superconductor that will win them a Nobel prize and change humanity forever? Probably not. Dave completely busts the demo video of their LK-99 material with a pracitcal lab example, it’s such an embarrassing mistake you won’t believe it! …

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EEVblog 1554 – Optometrist AutoRefractor Keratometer...

EEVblog ·

2023/07/23

A teardown of a very interesting bit of optometry kit, a Shin Nippon NVISION K-5001 RefKeratometer (Auto Refractor Keratometer). It can measure the curvature of your cornea, and well as refractive error to diagnose near and far sightedness. Links: https://www.rexxam.co.jp/themes/eye-care/products/images/nvk5001/NvisionK5001.pdf https://www.academia.edu/59315264/Clinical_Evaluation_of_the_Shin_Nippon_NVision_K_5001_Grand_Seiko_WR_5100K_Autorefractor

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EEVblog 1553 – World’s First Commercial Solar Power...

EEVblog ·

2023/07/14

Dave visists the world’s first commercial solar power station in White Cliffs, a small opal mining town in outback Australia. Built in 1981 and using 14 heliostatic tracking 5m diameter dishes, this concentrated thermal solar plant produced 25kW of power using a steam generator. Links: https://en.wikipedia.org/wiki/White_Cliffs_Solar_Power_Station Analysis report: https://eevblog.com/files/sustain_renew_solar_white_cliffs_project_report.pdf Mirror efficiency data:

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