Dave reviews the Canadian Advance Devices Smart Tweezers LCD meter. What will he find? Does it cut the mustard?
Bonus LCR meter tutorial at the end.
EEVblog #81 – Smart Tweezers LCR Meter Review And Teardown - [Link]
Dave breadboards a precision 1A current source circuit and finds that even the application reference circuit doesn’t work as expected. Showing that you can’t just blindly trust that datasheet application circuit will work first go.
EEVblog #567 – Precision 1A Current Source - [Link]
What is the actual capacitance of typical breadboard contacts?
It’s not in the datasheet, so Dave decides to measure it. It is well know that breadboards are not suitable for high frequency work due to the stray capacitance between contacts, but how bad is it really?
EEVblog #568 – Solderless Breadboard Capacitance - [Link]
Dave takes a look at two cheap USB microscopes to see how suitable they are for electronics works and soldering and inspection.
EEVblog #566 – Cheap USB Microscope Reviews - [Link]
Ever wondered how they transmit your TV signal?
David Kilpatrick from TXAustralia takes us on a detailed tour of the old decommissioned 10kW analog TV transmission system at the Artarmon facility in Sydney. It is still used to transmit digital TV. How it all works from the broadcaster video input to final transmission output up the 180m broadcast antenna. Plus some teardowns of the old equipment that’s been used to transmit the Channel 7 TV signal in Sydney since 1981.
Copper rigid coaxial lines, waveguides, filters, splitters, combiners, converters, transmission valve, power supplies and all the equipment necessary to transmit a 10kW analog or digital TV signal in a major city like Sydney.
EEVblog #569 – Tour of an Analog TV Transmission Facility - [Link]
Dave assembles his first uCurrent in the SMD reflow oven. With random running commentary while pick and place assembling.
EEVblog #562 – More SMD Oven Reflow - [Link]
Dave celebrates the classic 555 timer IC by building the Evil Mad Scientist “three fives” discrete timer kit. Some scope measurements and an explanation of the internal 555 timer circuitry follow.
EEVblog #555 – 555 Timer Kit - [Link]
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]