Posted on March 10th, 2014 8 comments
Dave shows how the assemblers will production test the µCurrent PCB panels using his new test jigs. And he will does a trial run on 50 µCurrent PCB’s to determine the average testing time. What will take the longest – PCB testing, or wrapping, or packaging?
Soltronico PCB Assembly
Posted on March 7th, 2014 31 comments
What’s inside Tektronix’s new MDO3000 Mixed Domain Oscilloscope?
Dave does a teardown and looks at the circuitry and how they can get such a cheap 3GHz RF spectrum analyser to work.
MDO4000 Teardown: http://www.youtube.com/watch?v=J9_JxRiuS5A
HMC624 Digital RF Attenuator
HMC311 InGaP HBT GAIN BLOCK
Lattice LFE3 FPGA
i.MX6 ARM Applications Processor
1Gb DDR2 SDRAM
Secrets Behind the MDO Spectrum Analyser
High resolution teardown photos are here:
Posted on March 5th, 2014 11 comments
Dave looks at the open source hardware UFactory uARM 4-axis desktop robotic arm kit project available on kickstarter:
This is the first unit produced, and comes with the suction cup head and Arduino Uno board and shield controller.
Posted on March 2nd, 2014 22 comments
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
Posted on February 27th, 2014 12 comments
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 measure this in my specific circumstance, yes, there are several, but the point of the video is to show what happens when you measure a circuit node of even moderate resistance.