Posted on October 31st, 2014 6 comments
In this tutorial Dave explains what a PCB spark gap is and how it can be a useful zero cost addition to your PCB layout to help prevent ESD damage.
He shows how to easily design them into your board and calculate the approximate voltage rating.
And of course has some fun applying 5kV to some gaps to show how them at work.
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Posted on October 28th, 2014 3 comments
Dave opens his mail.
Spoilers & Links:
HP 4260A LCR Universal Bridge
User & Service Manual
iPod Blood pressure monitor
Old computer hardware
Intel 1Mb Bubble Memory
PICop development board
TEM Products SMD IC and LED thermal products
Stepper Motor Controller
TSL1401CL LineScan Camera
Posted on October 27th, 2014 34 comments
FTDI have released a windows driver update that bricks any product using counterfeit chips.
A classic case of corporate suicide.
Dave breaks down “FTDIgate”, and rants about FTDI’s official response.
NOTE: The 2nd half of this video includes the original rant video before FTDI responded and withdrew their new driver.
The forum thread that’s going crazy!
Posted on October 22nd, 2014 16 comments
Dave shows you how to reverse engineering a PCB to get the schematic. In this case the new Rigol DS1054Z oscilloscope.
How does the discrete transistor analog front end and the software bandwidth limiting work?
How do you decode SMD transistor codes?
How does it compare to the old Rigol DS1052E?
Dave also discusses the low voltage ohms function of a mulitmeter, how it’s useful, and how to test your multimeter to see if it will have any issues with in-circuit testing.
Posted on October 16th, 2014 6 comments
As the title says, due to countless requests
Also available in hoodie, long sleeve, women’s, and even camo.
Get one quick.