EEVblog No Script, No Fear, All Opinion

Dave looks at the open source hardware UFactory uARM 4-axis desktop robotic arm kit project available on kickstarter: https://www.kickstarter.com/projects/ufactory/uarm-put-a-miniature-industrial-robot-arm-on-your Home This is the first unit produced, and comes with the suction cup head and Arduino Uno board and shield controller. Forum HERE Podcast: Download

Dave updates the EEVblog lab benches with a continuous 6.3 m roll of dual layer rubber ESD matting from Oritech. And a first glimpse of the Tagarno MAGNUS FHD ZIP USB 3 60fps Full HD Video Microscope And special guest appearance by Sagan Forum HERE Podcast: Download

What effect does your multimeter input impedance have on the circuit you are measuring? Dave shows a practical example of how it can really screw things up if you aren’t watching out for it. NOTE: For those who want to comment on the fact that there are other ways to …

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Dave visits the 2014 CCARC Wyong HAM Radio Field day and sets up a car boot sale. Forum HERE Podcast: Download

UPDATE: The managing director of Element 14 has responded officially in the comments below and has CONFIRMED that it IS a US denied persons list! If your name happens to be fairly common like mine, then you may end up having your orders flagged and put on hold by Element …

I’ll be at the CCARC Wyong field day this Sunday the 23rd Feb. The plan is I’ll be selling my hoard of Tek TDS220 scopes and some maybe other stuff from my car boot in the flea market until maybe lunch time. Then I’ll be wandering around. Drop by and …

What’s inside a classic 1979 vintage Hewlett Packard HP41CV calculator? Should Dave totally destroy it, or respect such a fine machine? Forum HERE More photos of the removed PCB are HERE Podcast: Download

Dave takes you behind the scenes on his Kickstarter campaign to show how easy it is to use the dreaded “Survey” feature to get backers address details. Also an insight into the project stats available and database CSV export functions. This is a video for those curious to know how …

3 hours of Dave answering questions from the Youtube audience. Part 1. Forum HERE Podcast: Download

Part 3 in the Precision Current Source series. Dave breadboards a classic precision low current source circuit using the 10V REF102 voltage reference to generate accurate 1mA and 1uA currents. Also some talk about the errors in a typical precision circuit like this. Part 2 HERE Part 1 HERE REF102 …

Dave hates products with built in charging that don’t use a standard Micro USB connector. In this case the Panasonic Lumix LF1 with its stupid proprietary connector. Why in this day and age of attempted standardisation are companies still doing this? Dave also shows off a good example, the Sony …

Part 1 HERE Dave gets his precision 1A current source circuit working on a breadboard. LTC6655 VPR221Z Precision 4-terminal Z-Foil resistor from Vishay LTC6655 Voltage Reference OPA376 Podcast: Download

A quick look at Dave’s Advantest R6142 Voltage and Current Source. Can it be used as a current reference for the uCurrent? A look at the stability with temperature and time, and absolute calibration of the unit. Is it an ebay score, or ebay junk? Forum HERE Podcast: Download

Phil VK2BDF from the Manly Warringah HAM Radio Society shows off his 1970’s vintage home made 200MHz DIY spectrum analyser. Forum: http://www.eevblog.com/forum/blog/eevblog-575-diy-1970s-spectrum-analyser/ Podcast: Download