Dave investigates the piezoelectric effect in multi layer chip capacitors (MLCC’s). In this case, on the backlight inverter on his own BM235 multimeter. Forum HERE LCD Driver DATASHEET Capacitor Tutorial VIDEO Podcast: Download

What’s inside a Kollsman Instrument Corporation MD-1 Automatic Astro Compass mechanical analog computer from a B52 Bomber? Part of the star tracker inertial navigation system that calculates the altitude and azimuth. Thanks to The Geek Group Forum HERE Podcast: Download

This was supposed to be a repair video of a Fluke 17B multimeter. But embarrassingly turned into an impromptu How a Mulitmeter Works video. Dave goes through the Fluke 17B schematic and explains how stuff works. Forum HERE Teardown video HERE Thermocouple Tutorial HERE Podcast: Download

What result do you get when you mass test 40 identical multimeters for DCV, ACV, DCA, and Ohms? Dave decided to find out… Multimeter Counts & Accuracy explained: Podcast: Download

Several Teardowns on today’s Mailbag Forum HERE Newsletter Signup SPOILERS Sony M-50 Discman The world’s first portable CD player. A weird Japanese pinball game machine display with huge VFD display. The Joey, a, I2C Raspberry Pi LED display board A D-Link router that has released the magic smoke. The Hack-A-Day …