//

EEVblog 1562 – THE 1980’s Boombox TEARDOWN – Sharp GF-7600

Teardown of THE 1980’s Boombox / Ghetto Blaster, the iconic Sharp GF-7600 That boombox from the iconic scene with John Cusak in Say Anything playing Peter Gabriel’s In Your Eyes Unboxing: https://www.youtube.com/watch?v=381wHMamsYQ Sony Walkman teardown: https://www.youtube.com/watch?v=a0B4CWfYE8I Forum: https://www.eevblog.com/forum/blog/eevblog-1562-the-1980s-boombox-teardown-sharp-gf-7600/ TEARDOWN PHOTOS: Podcast: Download

Read More »

EEVblog 1561 – µSupply USB Power Supply – Part 21

Part 21 of the uSupply USB power supply design. An update on where the project got to and why. A look at the working unit, PCB and schematic. Design series Playlist: https://www.youtube.com/playlist?list=PLE37A0E6F75C37452 Forum: https://www.eevblog.com/forum/blog/eevblog-1561-usupply-usb-power-supply-part-20/ Podcast: Download

Read More »

EEVblog 1559 – PCB Design: Trace Current Rating

Dave answers a Twitter question: How should I design a PCB trace to carry 80A of current, and can this be done on one PCB layer? The answer is, well, complicated. Let’s go down the PCB design rabbit hole of current rating PCB traces. Designing a PCB trace for 70-80A. …

Read More »

EEVblog 1558 – Mailbag

More random mailbag! PocketFrog: https://standardmeasurement.us/ Omnifixo Maker’s Third Hand: https://kandaelectronics.com.au/products/omnifixo-of-m4-makers-third-hand NASA Red Crew: https://www.nasa.gov/feature/artemis-red-crew-team-helps-enable-successful-launch/ https://caberqu.com/ https://github.com/DanInvents/Rockit/ 00:00 – Mailbag 00:42 – PocketFrog USB Lab in your pocket 22:40 – Omnifixo OF-M4 Magnetic PCB Holder 28:32 – NASA Artemis 1 Red Crew – Billy Cairns 30:36 – Caberqu C2C USB-C Cable …

Read More »

EEVblog 1557 – Micsig SigOFIT Optical Fibre Probe + GaN Experiment

Review of the new Micsig SigOFIT Optical Fibre oscilloscope probe, including a practical demonstation of the incredible CMRR range of opticallly isolated probing of a 300V GaN transistor driver circuit. And a direct comparison with the HVP-70 high voltage differential probe to show you the incredible game changing difference optical …

Read More »

EEVblog 1556 – SolaRoad Solar Cycleway FAILS, AGAIN!

To everyones shock, a SolaRoad cycleway installation in Maartensdijk in Utrecht province of the Netherlands only produed 26% of it’s projected output, AGAIN! When will this nonsense stop? Links:https://nos.nl/artikel/2484255-innovatief-zonnefietspad-bij-maartensdijk-levert-bijna-niets-op https://www.dutchnews.nl/2023/07/solar-bike-path-fails-to-meet-electricity-targets-again/ https://www.wattisduurzaam.nl/37168/energie-beleid/utrechts-zonnefietspad-op-koers-voor-40-van-beoogde-opbrengst/ https://www.wattisduurzaam.nl/16140/energie-opwekken/7-veelbelovende-innovaties-die-de-transitie-geen-steek-verder-helpen/ https://twitter.com/WattisDuurzaam/status/1525171198052782090 https://www.businessinsider.com/worlds-first-solar-road-turned-out-colossal-failure-2019-8 https://www.archpaper.com/2015/07/bike-path-pieces-skeptics-dismiss-dutch-solar-bike-path-solaroad-inefficient-cash-grab/ Solar roadways BUSTED Playlist: https://www.youtube.com/playlist?list=PLzET2ZHWnFA-6fnJu8WAhKmIruWDp8CQr Forum: https://www.eevblog.com/forum/blog/eevblog-1556-solaroad-solar-cycleway-fails-again!/ Podcast: Download

Read More »

EEVblog 1554 – Optometrist AutoRefractor Keratometer TEARDOWN!

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 https://www.opticsforhire.com/blog/keratometer-optical-design/ Manual: https://www.yumpu.com/en/document/read/25018677/english-manual Forum: https://www.eevblog.com/forum/blog/eevblog-1554-optometrist-autorefractor-keratometer-teardown!/

Read More »

EEVblog 1553 – World’s First Commercial Solar Power Station

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 …

Read More »

EEVblog 1552 – Digilent Analog Discovery 3

A first look at the new Digilent Analog Discovery 3, plus teardown. 00:00 – Unboxing the new Digilent Analog Discovery 3 02:23 – New features 05:00 – The price and comparison with a benchtop scope 06:19 – Teardown and comparison with Analog Discovery 2 10:18 – Nice design touches https://digilent.com/blog/whats-different-with-the-analog-discovery-3/ …

Read More »

EEVblog 1551 – DESTROYED Ukrainian Starlink PCB! – Mailbag

Looking at a Ukrainian Starlink dish PCB that was DESTROYED by shrapnel! https://olegkutkov.me/ https://twitter.com/olegkutkov https://radionavlab.ae.utexas.edu/wp-content/uploads/2023/01/starlink_structure.pdf https://www.theverge.com/2021/11/11/22776563/spacex-starlink-rectangular-dish-router-mounting-internet-satellites https://i.blackhat.com/USA-22/Wednesday/US-22-Wouters-Glitched-On-Earth.pdf https://cdn.intechopen.com/pdfs/37016/InTech-Antenna_designs_with_electromagnetic_band_gap_structures.pdf https://onlinelibrary.wiley.com/doi/epdf/10.4218/etrij.2017-0197 00:00 – Ukrainian Starlink dish PCB that was DESTROYED by shrapnel! 15:18 – Snaptron Solderable tactile PCB Domes https://www.snaptron.com/ Forum: https://www.eevblog.com/forum/blog/eevblog-1551-destroyed-ukrainian-starlink-pcb!-mailbag/

Read More »

EEVblog 1550 – Keysight E36731A Battery Emulator Teardown

Teardown the new Keysight E36731A Battery Emulator & Profiler https://www.keysight.com/us/en/product/E36731A/battery-emulator-and-profiler.html Forum: https://www.eevblog.com/forum/blog/eevblog-1550-keysight-e36731a-battery-emulator-teardown/ If you find my videos useful you may consider supporting the EEVblog on Patreon: https://www.patreon.com/eevblog Hi-Res Teardown Photos:

Read More »

EEVblog 1549 – Mailbag Teardown Art, USB Power, and Multimeter

In this mailbag we take a look at some teardown artwork, USB power monitors, and a USB rechargeable multimeter. Grid Studios Teardown artwork: https://gridstudio.cc/ FNB58 USB power monitor: https://s.click.aliexpress.com/e/_Dlc6MlJ FNB48P: https://s.click.aliexpress.com/e/_DlifLtx https://ultraonedesign.com/ Fnirsi S1 Multimeter: https://s.click.aliexpress.com/e/_DC2hz2H Forum: https://www.eevblog.com/forum/blog/eevblog-1549-mailbag-teardown-art-usb-power-and-multimeter/ 00:00 – Mailbag 00:31 – Grid Studio Teardown artwork 06:06 – Fnirsi …

Read More »

EEVblog 1548 – Moon Landing Hoax BUSTED

The Moon Landing Hoax conspiricy theory BUSTED with Dave’s original proof. Dave does something no one else has done before – compare the original Apollo 17 16mm ascent camera footage to the Lunar Reconnaissance Orbiter (LRO) photos. Will footage from 40 years apart match up to confirm the moon landing? …

Read More »