EEVblog – Podcast

In this tutorial Dave describes what AC trigger coupling is on an oscilloscope and why it can be useful. Not only on old analog CRT oscilloscopes, but modern digital scopes as well. How and why is it different to AC channel input coupling? Also, use of the 50% trigger control, …

The founder and CEO of Ness Corporation Naz Circosta takes us on a personal tour of the companies impressive worlds class surface mount and through hole manufacturing facility where they produce hundreds of different Ness security and automation products. It’s no every day the CEO of a major company has …

Dave investigates two very serious issues with jitter on the Rigol DS1000Z series oscilloscopes, including the DS1104Z and new DS1054Z Some sort of modulated sampling/trigger jitter problem at 5 microsecond intervals (the “5us jitter problem”). And severe jitter with the AC coupled trigger mode, a problem which is also present …

Part teardown, part repair, Dave looks at an Australian designed and manufactured Ness D16X alarm panel that has failed. What’s that smell? Can it be fixed? How do you repair solder mask on a PCB?, or add solder mask to your own home etched PCB’s? And another look at PCB …

Dave yet again debunks Solar (Freaking) Roadways. This time the prototype SolaRoad solar cycleway path installed in Amsterdam in Netherlands. Dave shows how to go about doing ballpark engineering feasibility calculations for such a project, calculates the expected payback period, and SPOILER, shows why Solar Roadways will never be a …