EEVblog No Script, No Fear, All Opinion

How may photons does a LED emit at very low currents? What is the lowest current where a LED will actually emit photons? Dave does some measurements to answer this quantum physics level stuff! Podcast: Download

Dave & Friends destroy a Keysight U1282A Multimeter. Is it really IP67 rated & can withstand a 3m drop? Only one way to find out, take it canyoning, then drop it, throw it from a moving car, run over it, and then drop it some more until it breaks! Kate’s …

About a week left on the Keysight 6GHz scope giveaway. A lot of people have been concerned that these scopes were not going to “worthy” winners who can really use them, even more so the big daddy 6GHz version. In which case I like the entry from Carlos A, check …

Can Dave find the first mention of TTL chips, on the 50th anniversary of TTL? Some old resurrected footage and a segment idea from July 2014, Welcome to Wayback Wednesday, were Dave looks though his old Electronics Australia magazine collection. Forum HERE Podcast: Download

Is this wierd thing a slice of Dave’s Brain? Find out in today’s Mailbag Forum HERE SPOILERS: A silicon wafer bonanza! Hires photos of wafers A temperature sensing plasma etching wafer http://www.diychristmas.org Bullshit Bingo Model car controller A very expensive single photon counter teardown and some experimentation. Random cheapo Chinese …

Dave shows you an interesting ionic resistance phenomenon that lets you increase the battery capacity in typical Alkaline AA and AAA cells. Forum HERE Ionic resistance video Batteriser Monkey Busted Video Podcast: Download

Dave is moving into a HUGE new lab! What should he do with all this new space? Virtural tour! Forum HERE

Inside the new Siglent SDS2000X Series 4 channel 300MHz oscilloscope. Hi Res Photos: Datasheets: Micron DDR3 SDRAM Netsol SRAM ADCMP562 Comparator SDS1000X Review SDS1000X Teardown Siglent CEO Eric Qin in the lab Trio Test Forum HERE Podcast: Download

What’s inside the world’s first portable CD player, the Sony D-50 (D-5) ? 1984 vintage! Also a look at the laser beam splitter optics, and the gorgeous service manual. Service Manual HERE Nobutoshi Kihara MC Frontalot Zero Day Album Forum HERE Hires Teardown Photos: Podcast: Download

Dave takes a look at the BK Precision 8601 DC Electronic Load and compares with his older 8500 model. A teardown and some playing around with the software DIY Electronic Load HERE 8500 Teardown HERE Forum HERE Hires teardown photos: Podcast: Download

Dave repairs his Rigol DP832 Lab Power Supply. Why did it need repairing? That’s the FAIL part Rigol might want to look into… The previous DP832 Design FAIL Forum HERE Podcast: Download

Mailbag Monday Forum: http://www.eevblog.com/forum/blog/eevblog-860-mailbag/ SPOILERS: Supermicro AMD Opteron Server Motherboard AMD Nothbridge chips HERE and HERE Ibico & TI calculator teardowns Cheap Multimeter Teardowns Perf2 Prototype board crowd funder Garmin GPS III+ Teardown Radio Shack Pen Oscilloscope Teardown COP8 Microcontroller Podcast: Download

Everything you need to know about bypass capacitors. How do they work? Why use them at all? Why put multiple ones in parallel? What effect does package type have on performance? Are there any traps? Dave measures some bypass capacitors with an impedance analyser to confirm the whiteboard theory and …

Dave tries to get the Red Pitaya up and running and doing some basic measurements via WiFi & Ethernet. TLDR: Many issues: apps freeze, WiFi didn’t work, and the apps have only very basic rudimentary functionality. But it’s promising, and probably a good solution for those who want to write …

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