EEVblog

What’s inside the world’s first portable microcomputer? The Osborne 1 from Osborne Computer Corporation torn down. An Adam Osborne and Lee Felsenstein design. ROM Dumps HERE and HERE Field Service Manual Technical Manual Forum HERE Podcast: Download

Dave shows you how you can set up an electronics lab for only a few hundred bucks. Multimeter, oscilloscope, power supply, function generator, soldering station, solder, wire, tools, microscope and magnifier, and components. The previous video HERE Forum HERE Links: UT136B Multimeter OWON VDS1022I USB Oscilloscope YiHUA 936 Soldering Station …

More on the nixe tube driver chip, testing for bias glow and clamp voltages. Schematic design in Altium Designer. Selection of the Wifi ESP8266 module Traps in 3.3V / 5V logic level translation. Design tip for neat schematics. Forum HERE Podcast: Download

Mailbag overload! Forum HERE SPOILERS: A watch made from a old IBM Microdrive Hard Drive Drive! Tearing down and debunking a Hyper Voltage Stabiliser car energy smoothing bullshit device. Panduino Uno compatible Arduino Dell Server destroyed by super Neodymium magnet! Brainiac75 Youtube My Playhouse Youtube Hardware Hacker book by Bunnie …

Some more info and experiments on driving Nixie tubes. Open circuit cathode voltage, open collector vs totem pole / push-pull drivers, NIxie voltage drop and pre-biasing, and using the ULN2003 with zener clamping. Forum HERE Podcast: Download