Design & Build

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

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

Part 1 of an internet connected Nixie tube counter/clock display project. What are Nixie Tubes? How do they work? How do you drive them? Selecting a suitable driving solution and parametric searching. Forum HERE Podcast: Download

Part 2 of building the Raspberry Pi computer cluster. Dave strips down an old Apple G5 PowerMac to use as the enclosure. Forum HERE Podcast: Download

Dave sketches up an idea for a more integrated Raspberry Pi supercomputer cluster with integrated ethernet and power. Forum HERE Podcast: Download