EEVblog No Script, No Fear, All Opinion

Dave has changed a few things in the Rev B schematic of his power supply design. Talk on opamp specifications, I2C I/O expansion and AVR microcontroller pin usability. Download the RevB schematic HERE Podcast: Download

The latest batch of uCurrent’s has sold out again! If you missed out, this time I have a list you can sign up to register to get one: This doesn’t guarantee you anything, but I will base the next batch number on how many sign up to this list, so …

As the title says: http://eevblog.com/shop

Dave got a Makerbot Thing-O-Matic 3D printer. A look at what’s inside the box, plus some bonus rants. if it takes this long to un-box, how long will it take to build? Podcast: Download

PART 1: https://www.youtube.com/watch?v=I55uLRRvLCU What’s inside the FE-5680A Rubidium frequency standard? Available on ebay for about $50 or so. Podcast: Download

TEARDOWN: https://www.youtube.com/watch?v=FRdGsSu5Nec What’s all this Rubidium Frequency stuff anyhow? Dave got an FE-5680A Rubidium frequency standard on ebay. How do they work?, and how does it compare to a regular crystal oscillator, a DTCXO, or an oven stabilised oscillator? Podcast: Download

What’s inside the new Agilent U1733C LCR meter? and how does it differ from the old U1733B Escort design? Podcast: Download

What about reverse bias protection on the LT3080, does the design need it? Dave does a quick test to find out what happens. Will it smoke? Podcast: Download

Dave goes through the final base schematic for his Open Hardware lab power supply design. Schematic is here: http://eevblog.com/uploads/uSupplyBenchRevA.pdf Podcast: Download

UPDATE: SOLD OUT in about 10 minutes, sorry! More on order, sending to the assemblers today. I have 15 more µCurrent’s available now. To be fair, I will list them on my shop tomorrow, Friday, 6 January at 9AM Sydney time. CLICK HERE for the timezone conversions. First in gets …

2011 was a big year for the blog… Sorry for the crap video quality, Youtube screwed up the video stabilisation feature and I can’t revert back! Podcast: Download

Dave, Phil, and Rog battle Murphy to find an elusive short on their ArduCopter ArduPilot IMU (OilPan) board before they can get their CanyonCopter in the air for its first test flight. Or, how to trace down a short on your power rail. Podcast: Download

What’s inside IET Labs new DE-5000 handheld LCR meter? http://www.ietlabs.com/de5000-lcr-meter.html Podcast: Download

UPDATE: Sorry, they sold out overnight again! I have new stock of the µCurrent adapter again: http://www.eevblog.com/projects/ucurrent/ http://www.eevblog.com/shop First in, best dressed, sorry, I do not take backorders nor can I “put one aside for you”.

A tour of the new EEVblog lab, still under construction… The arcade machine is from Wollongong Arcade Machines: The Rubber ESD work mat: http://www.oritech.com.au/productDetail.aspx?productID=20512 Podcast: Download