Here are some interesting videos related to PA and sound reinforcement systems. Wikipedia defines that a public address system (PA system) is an electronic system comprising microphones, amplifiers, loudspeakers, and related equipment. It increases the apparent volume (loudness) of a human voice, musical instrument, or other acoustic sound source or recorded sound or music. The →
https://www.edn.com/electronics-blogs/edn-moments/4420729/1st-actual-computer-bug-found–September-9–1947 This describes the history of term “computer bug”. In September 9, 1947, a team of engineers working on the Mark II Aiken Relay Calculator at Harvard University had a problem: the bug was an actual large moth, about four inches in wing span, in one of the relays beaten to death. Debuggers put it →
https://archive.org/details/bstj-archives The scientific discoveries and technological innovations produced by Bell System research and engineering were critical not only to the evolution of global telecommunications but, more widely, they had a considerable impact on the technological base of the global economy. The invention of the transistor at Bell labs in 1947, and subsequent advances in related →
https://www.fastcompany.com/90230417/5-causes-of-burnout-in-the-workplace Have you noticed any recent changes in your coworkers? Burnout can happen to any employee in any company–even in the best work environments. Burnout tends to occur when someone in your team encounters at least one of these five circumstances listed in this article. →
https://spectrum.ieee.org/tech-talk/telecom/security/everything-you-need-to-know-about-wpa3 The biggest Wi-Fi security update in 14 years was recently unveiled by the Wi-Fi Alliance. The Wi-Fi Protected Access 3 (WPA3) security certificate protocol provides some much-needed updates to the WPA2 protocol introduced in 2004. The Wi-Fi Alliance also announced two additional, separate from WPA3 certification, protocols: The Enhanced Open and Easy Connect →
https://inktank.fi/the-10-smartest-ricky-gervais-tweets-about-religion/ Here are 10 of his finest philosophical moments in a 140 characters or less. Some make you laugh and some make you think. →
https://www.edn.com/electronics-blogs/si-pi-masterclass/4461028/Make-simple-fixtures-from-SMA-connectors For testing SMD components you need some test fixture. A fixed-geometry fixture produces consistent and repeatable results. This article tells how you can easily make fixed-geometry fixtures out of PCB-mounted SMA connectors. You can build a fixture to measure bypass capacitors using SMA-female edge-mount connectors. The narrow-base connectors (5 mm grid) and are best →
https://www.maximintegrated.com/en/app-notes/index.mvp/id/750 This article from MAXIM discusses the key relationship between video resolution and the required bandwidth to accurately process and display that video signal. The equations and table address standard definition, NTSC and PAL, as well as high definition DTV standards. Computer display formats are also covered. →
https://opensource.com/article/18/8/must-read-tech-newsletters Here’s an interesting looking list of 14 newsletters on open source software. →
This posting tells the story how I got a video made of my old computer demo from almost 25 years ago. The story of that computer demo told in Computer Demo: Bogus Party III Video by Bogus Device posting. That old program was designed to run on DOS operating system on a pretty old hardware. →