I had one DIY laboratory power supply that has served me well for a long time, but there are testes where I need another laboratory power supply. Instead of building a traditional power supply with linear regulator and large heatsink, I went to another route: build one from switch mode power supply and adjustable switch →
Linux creator Linus Torvalds spoke about the challenge of finding future maintainers for the open-source operating system, at the (virtual) Open Source Summit and Embedded Linux conference under way this week. It’s really hard to find maintainers, says Linux creator. Maybe the damage was already done when Linus developed a bad reputation early on for →
Look, how many times have we told you to be careful what you wish for? “Wait, maybe I should really be more careful when asking James Fridman to photoshop my pic!” Because the guy is savage. Want the lamp out of sight? Disappear into the darkness. Wanna edit the dominos out of your prom pic? →
Here are two articles that could be interesting and entertaining to read. In this first article the writer uses audio analyzing tools to to debunk spurious claims made by audiophiles, HiFi journalists, and the high-end audio industry about the quality of their products. This article covers using audio analyzers and also using SDR software to →
It seems that Earth’s magnetic field is weakening and changing at the moment. The magnetic North is moving towards Siberia and South Atlantic Anomaly weakening the Earth’s magnetic field. There is some fear that the weakening is causing technical problems for satellites and could have other effects. Here are some links to news on this →
ZDnet reports at https://www.zdnet.com/article/github-to-replace-master-with-alternative-term-to-avoid-slavery-references/ that a number of people and companies plan to drop terms like “master” and “slave” for alternatives like “main/default/primary” and “secondary;” but also terms like “blacklist” and “whitelist” for “allow list” and “deny/exclude list.” ZDNet found that projects like the OpenSSL encryption software library, automation software Ansible, Microsoft’s PowerShell scripting language, →
An adjustable regulated power supply is a necessary tool for an electronics laboratory. Here is a laboratory power supply 2.7-30V up to 4A I built has worked for 30 years ago and still going strong. Its function is to supply a stable voltage set by the voltage control potentiometer up to the current set by →
This posting is here to collect cyber security news in June 2020. I post links to security vulnerability news with short descriptions to comments section of this article. If you are interested in cyber security trends, read my Cyber security trends 2020 posting. You are also free to post related links to comments. →