Posted on May 25th, 2015 4 comments
Dave goes back 20 years and find an old PC Based Logic Analyser project of his that was published in Electronics Australia magazine back in 1996. He uncovers the original timing diagrams, schematics, and prototype. And tries to resurrect the old Borland Pascal 7 source code and Lattice ispLSI PLD chip code.
And the old Protel Autotrax for DOS PCB and schematic files.
Will it all work 20 years later?
A bonus side detour into the venerable Tektronix TDS210/220 oscilloscope.
Posted on May 20th, 2015 5 comments
What’s inside the a 1987 vintage Sharp X68000 personal computer / gaming system from Japan?
Sold exclusively in Japan from 1987 to 1993 this 10MHz 68000 based boasted graphics capability superior to the Amiga and Atari ST. The powerful graphics enabled pixel-perfect ports of clasic games arcade games, and the machine was highly sought after by gamers. Running a custom operating system called Human68K, it even had 3D goggle support.
Hires teardown photos:
Posted on May 19th, 2015 4 comments
Mailbag time again. Dave opens his mail. What random stuff awaits?
Marble Run video below
A vintage Japanese Sharp X68000 video game home computer from the 1980’s
Teardowns of an industrial controller, a LED light controller, ABB industrial switchmode power supply, Casio FX-3800P programmable calculator, old Gossen digital multimeter and a German analog meter.
Surprise visit by Sagan
Two Kickstarter Projects:
Bluetooth Audio Link (BAL)
A solar powered propeller hat and electronics business card http://shop.asmyldof.com/
ICL7136 Multimeter chipset
Posted on May 15th, 2015 6 comments
Dave explains how to attach an SMD power transistor or regulator to a case to use as a heat sink in this design tutorial. And in the process talks about thermal design, the electrical/thermal analogy, and thermal vias.
This is Part 15 of the µSupply Power supply design series. Other videos are HERE
Posted on May 13th, 2015 12 comments
The 6 month test results for the Solar Roadways Solaroad.nl solar bike path project in the Netherlands are in. Dave compared the results to three local rooftop solar system and debunks the recent media reports that the project produces more power than was expected and that the solar roadway are now viable as a result.
And which country is doing Solar Roadways right? – South Korea!
Solaroad Press Release
Popular Mechanics Story
Three solar installations in the Netherlands used in the analysis:
Solar panel datasheets:
Video of the Solar Roadway in South Korea