EEVblog

Dave shows how Tektronix digital oscilloscopes work fundamentally different in their Auto trigger mode from other brands. And also some random ad-hock comparisons between the Tektronix MDO3000, Agilent MSOX3000, Rigol DS2000, and GW Instek GDS-2000A oscilloscopes. Forum: http://www.eevblog.com/forum/blog/eevblog-617-tektronix-oscilloscope-anomaly/ Podcast: Download

Doug Ford, former head designer at Rode Microphones explains 48V phantom powering of microphones and how it works. There is a ton of stuff here: Electrostatic and electromagnetic noise, differential amplifiers, common mode noise, transformer magnetisation current, JFET differential driver circuits, balanced impedances, phase splitters, miller capacitance and how it …

Dave walks around Cebit Australia 2014 at Homebush Bay in Sydney. Show highlights footage HERE If you don’t like shaky hand held walking footage, motion blur, or camera image stabilisation, don’t watch it, no complaints. I do not have a steadycam, and I don’t want advice on a steadycam, and …

Dave checks the Dallas DS1220Y chip in the Prema 6047 7.5 digit multimeter to see if the battery is dead, and if the calibration constants have been lost. ROM is HERE Previous video HERE Forum HERE Podcast: Download

Dave attended the Cebit 2014 event in Sydney at Homebush Olympic Park. Here are some highlights. The EX¹ the worlds first PCB printer. It prints silver conductive ink onto FR4, paper, mylar, or many other types of substrate. GoFar, a wireless car monitoring startup. The University of Newcastle Robotics group …