This modernised LC Meter measures a wide range of capacitances from 1pF to more than 1200pF with 0.1pF resolution, and inductances from 100nH to 2.5mH. It uses three AA cells and has a battery life of ~72 hours. by Charles Kosina
Old Vintage Computing Research: IR-controlling the new air conditioner in the vintage server room blogspot.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from blogspot.com Daily Mail and Mail on Sunday newspapers.
Don't know what it is about a combination lock, but I remember being fascinated by them as a child. Hence this one caught my eye: a system that can apparently crack combination locks in under a minute.