An in-depth practical visualisation of how bypass capacitors work at both high and low frequencies. Bulk decoupling capacitors vs bypass capacitors. Capacitor placement and types are tested and the results examined. How package inductance can have a large effect. Loop area and what is means, it’s impact on EMC emissions, …
Read More »EEVblog #1084 – Pocket Multimeter Shootout Part 2
Some quick extra tests on the 6 of the 14 pocket multimeters from Part 1 Which meter *won’t* survive testing? Forum HERE Podcast: Download
Read More »EEVblog #1083 – Pocket Multimeter Shootout
14 pocket multimeters from $8 to $65 are torn down and compared for feature set and build quality. Ranging in price from $8 to $65, which one is the best in each price category? Part 2 coming tomorrow. Timestamps: 6:07 XB866 Wun Hung Lo 9:42 ANENG AN8203 15:47 $10 Shootout …
Read More »EEVblog #1082 – What Do Compliance Logos Mean?
What does the UL type approval compliance logo on consumer products mean? What about TUV, ETL, GS, CCC and other marks? Dave breaks down safety standards and compliance marks. Forum HERE Podcast: Download
Read More »EEVblog #1081 – Are Bypass Capacitors REALLY needed?
Can a product work without ANY bypass capacitors? Dave finds out by “Muntzing” the Gigatron TTL computer. Lots of interesting talk on bypassing, grounding, probing, signal integrity, ground loops and noise and crosstalk. Forum HERE Links: http://www.electronicdesign.com/boards/whats-all-muntzing-stuff-anyhow http://web.mst.edu/~jfan/slides/Archambeault1.pdf https://ewh.ieee.org/r3/enc/emcs/archive/2012-10-10b_DecouplingMyths.pdf http://www.ti.com/lit/ml/slyp173/slyp173.pdf https://www.xilinx.com/support/documentation/user_guides/ug483_7Series_PCB.pdf https://www.xilinx.com/support/documentation/application_notes/xapp623.pdf Podcast: Download
Read More »EEVblog #1080 – Gigatron TTL RISC Kit Computer Review
Review of the Gigatron.io TTL 8 bit retro computer kit. The processor is built entirely using TTL logic. http://www.gigatron.io Live 4 hours build: https://www.youtube.com/watch?v=wECZoUNd2GY Forum HERE Podcast: Download
Read More »EEVblog #1079 – Mailbag
More mailbag! Forum HERE SPOILERS: Brads Projects: https://bradsprojects.com/ Microelectronics Timeline Poster http://www.engineeringminds.org/ Big Clown IoT kit: http://igg.me/at/bigclown USB TouchPad: https://www.kickstarter.com/projects/jacoburge/touchpad-the-arduino-compatible-customisable-keybo Fluxgate compass teardown Oregon Scientific temperature sensor teardown CCES-33 Calculator Kit The crustiest multimeter teardown in history Alcatel 565 Mbit/s PDH mux Podcast: Download
Read More »EEVblog #1078 – World’s Thinnest Calculator Teardown!
A look at the amazing construction techniques used in the world’s thinnest calculator by Casio Destructive teardown on the Casio SL800 credit card calculator from 1983. It’s more interesting than expected! Forum HERE Podcast: Download
Read More »EEVblog #1077 – Dumpster PC Repair
Power supply repair attempt on an i7-2600 Dell Optiplex 990 dumpster PC. An update on previous dumpster PC’s. And the bunker to the rescue. Forum HERE Podcast: Download
Read More »EEVblog #1076 – KRK Textile Dome Tweeter Teardown
QUICK teardown of the failed KRK Rokit 6 textile (soft) dome tweeter. Forum HERE Podcast: Download
Read More »EEVBlog #1075 – Digital BitBox Hardware Wallet Review
Review of the Digital BitBox crypto bitcoin hardware wallet, made in Switzerland. Bitcoin donations appreciated: 12gVrtZg75SWQFKhQ512DjPKpSFt3sK218 https://kit.com/EEVblog/crypto-hardware https://shiftcrypto.ch/ Forum HERE Podcast: Download
Read More »EEVblog #1074 – Custom LCD Design – Part 2
Part 2 of designing your own custom LCD display. Looking at the manufacturers datasheet for approval, and test design considerations. Forum HERE Podcast: Download
Read More »EEVblog #1073 – MORE KRK Rokit Black Gunk Speaker Repair
Fixing another two Gen 2 KRK Rokit 6 near field monitor speakers with the black gunk of death and failed capacitors. How wide spread is this problem? https://kit.com/EEVblog/youtube-video-blogging-gear LOL at KRK Systems Forum HERE Podcast: Download
Read More »EEVblog #1072 – KRK Rokit 6 Studio Monitor Speaker Repair
Repairing a KRK Rokit 6 powered near field studio monitor speaker. You won’t believe what caused the fault! https://kit.com/EEVblog/youtube-video-blogging-gear Forum HERE Podcast: Download
Read More »EEVblog #1071 – (UPDATED) Dumpster Dive HP Envy Touch PC REPAIR
Repair of a HP Envy 23″ Touch PC found in the dumpster. Blank screen and doesn’t boot. Troubleshooting and repair to getting it booted again. New content at 20:00 Re-edited from the EEVblog2 channel video, with new happy-ish ending. Forum HERE Links: http://systats.or8.net/hpspi/ Podcast: Download
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