What’s inside the Keithley 2400 Source Measure Unit? Forum HERE Service Manual Datasheets: AD7849 DAC AD847 opamp Photomos Relay Max7000 PLD LT1097 LT1007 Differential Amp AMP03 AD712 High Res teardown photo: Podcast: Download

Dave explains what Vacuum Fluorescent Displays (VFD’s) are, how they work, and then hacks an interface and reverse engineers a surplus display from an industrial machine to make it work with an Arduino. UPDATE: Found the datasheet Another page with info on a different model: Forum HERE TI TL4810 VFD …

Dave investigates and explains the Raspberry Pi 2 Xenon flash problem. Where the Pi2 will reset and lockup when a photo is taken of it from a Xenon flash camera. How and why the photoelectric effect is responsible. UPDATE: I have tried a UV filter in front of the flash …

Mailbag Monday Dave opens his mail. Warranty VOID T-Shirt Forum HERE SPOLIERS: ARM Arduino Pro Mini Atmel AT89C2051 NanoBeam Kickstarter module, T-Slot construction Elektor T-Board Arduino Breadboard modules Wireless RF energy harvesting module Awesome woodworking projects TI Voyage 200 Calculator Data Precision Multimeter teardown Podcast: Download

How does a metal detector work? Dave teardown and reverse engineers the circuit in a $17 Harbour Freight wand type metal detector, and also explains how to do basic reverse engineering of a PCB. Forum HERE Podcast: Download