A look at the Ultra Micron, the world’s smallest digital ionising radiation dosimeter, and it’s Open Source Hardware. Github page is HERE SBM-10 Russian Geiger-Muller Tube DATASHEET Forum HERE Podcast: Download

Dave opens his mail. A potpourri of items this week. Forum: http://www.eevblog.com/forum/blog/eevblog-775-mailbag/ SPOILERS: The Ultra Micron world’s smallest digital dosimeter / Geiger counter, and it’s open source! Full teardown video HERE The Stick-Vise PCB Holder Russian nixie tube display The 1962 Ferrari 250 GTO Telsa merch Buzz Aldrin’s Mission To …

Dave shows how to do discharge testing on AAA and AA alkaline batteries, for the specific purpose of investigating how much energy is left under the industry standard 0.8V cutout voltage. This is an explanation of the test setup, verification, and a sample plot of some data before the long …

Part 3 of Dave & David2 assembling the Inventables X-Carve milling machine. Bonus impromptu rant on the Batteriser for the first 30 minutes!

Time lapse footage of Dave & David 2 assembled the Inventables X-Carve cutting/milling machine. 6.5 hours of build footage in 2 1/2 minutes