The EEVblog Lab had a HD Dropcam so that people could watch what was happening live in the lab. It worked well enough, but then Dropcam changed their terms and conditions and wanted to merge with Nest (who bought them). This was bothering Dave so the search for an alternative began. Surprising, …

Mailbag time again. Dave opens his mail. What random stuff awaits? Forum HERE SPOILERS: Marble Run video below A vintage Japanese Sharp X68000 video game home computer from the 1980’s Teardowns of an industrial controller, a LED light controller, ABB industrial switchmode power supply, Casio FX-3800P programmable calculator, old Gossen …

Dave explains how to attach an SMD power transistor or regulator to a case to use as a heat sink in this design tutorial. And in the process talks about thermal design, the electrical/thermal analogy, and thermal vias. This is Part 15 of the µSupply Power supply design series. Other …

The 6 month test results for the Solar Roadways Solaroad.nl solar bike path project in the Netherlands are in. Dave compared the results to three local rooftop solar system and debunks the recent media reports that the project produces more power than was expected and that the solar roadway are …

Fundamental Friday Dave explains why some designs have electrolytic capacitors connected in parallel. The answer is more in-depth than you might think. 9 reasons are given and explained, and then some thermal camera fun on the bench. Rubycon capacitor datasheet: http://www.farnell.com/datasheets/1910904.pdf NOTE: Video #741 has been skipped for a reason. …