Dave tests the myth that plugging a PCB VIA with solder does nothing (or not much) to improve the current handling capability. Is manual wire feed-through any better?
EEVBlog #543 – PCB VIA Current Investigation - [Link]
What’s inside a modern 18W LED Fluoro T8 replacement tube from German company Mueller Licht?
EEVblog #533 – LED Fluoro Tube Teardown - [Link]
A look at some equipment and wafers used in the manufacture of silicon chip wafers. 200mm and 300mm wafers, die, dice sawing, lead-frame manufacture, automated testing machine (ATE) probing, clean room bunnie suits, photo plots, BGA chip thermal test sockets, and the worlds smallest active FET probes at 100 nanometers for direct wafer probing!
EEVblog #532 – Silicon Chip Wafer Fab Mailbag - [Link]
What’s inside an old style bank note/bill accptor/validator for vending machines and the like? How does it detect genuine notes from dodgy ones?
EEVblog #525 – Bank Note Acceptor Teardown - [Link]
What’s inside a modern car airbag controller?
EEVblog #517 – Car Airbag Controller Teardown - [Link]
What’s inside a modern bare bones $5 mobile phone? The LG800G available from Tracphone for $5:
EEVblog #514 – $5 Mobile Phone Teardown – LG800G - [Link]
Dave started out wanting to investigate the power-on spike on the Rigol DP832 Lab Power Supply, but ended up hunting down a reset bug that uncovered a bad thermal design mistake in the supply.
EEVblog #512 – Rigol DP832 Bad Design Investigation - [Link]
Inside the worlds first Digital SLR camera with rear LCD and inbuilt JPEG processing, the 1998 vintage Kodak DCS315, based on the Nikon Pronea 6i film SLR camera body.
This was before Canon and Nikon had released their own DSLR camera technology, when Kodak ruled the digital camera world!
EEVblog #495 – Kodak DCS315 DSLR Teardown - [Link]
How to generate high voltage DC with a Cockcroft-Walton Multiplier circuit. a.k.a Cockcroft-Walton / Villard / Greinacher Cascade
EEVblog #469 – Cockcroft-Walton Multiplier - [Link]
Dave takes you through designing a signal overload detector circuit from scratch and then builds it up on the breadboard.
- Window comparators
- Schmitt inverters,
- Capacitor charging,
- Pulse stretching,
- Common mode input range,
- Tongue angle tweaking,
- .. it’s all here.
EEVblog #471 – Overload Detector Circuit Design - [Link]