Extreme Mailbag! 2 minutes per mailbag item, can Dave do it? Forum HERE SPOILERS: Hobby Creek Pana Hand PCB Rax from BenchWerks SwissMicros HP Calculator replacements. Voyager landscape format scientific calcultors to replace the HP15C, HP16C, and HP41CX Equil EMF Radation protection device Bullshit Semikron IGBT hybrid VFD drivers bridge …

What is the difference between LCD viewing angle and bias angle? How does adjusting the LCD bias voltage effect the display? What is LCD Ghosting? Also a demonstration of Photoelastic Birefringence in polycarbonate plastic display covers. Dave investigates the Liquid Crystal Display viewing angle problem in the EEVblog BM235 Multimeter. …

Dave talks with Karsten Becker from PT Scientists about radiation in space and it’s effect on electronics and the design challenges involved for space probes, satellites, and cubesats. The Van Allen belt and types of cosmic radiation. What are “radiation hardened” components? What are “Space Grade” components? Forum HERE

Dave talks with Karsten Becker from PT Scientists about the electronics on board the Audi Quattro Lunar Rover, and space electronics in general. Radiation, thermal design, camera systems, power supplies and more. Forum HERE Podcast: Download

Dave tests the Castle Creations CC BEC Pro battery eliminator used in model airplanes to see if it meets is rated continuous current performance claims. Also a bit of a how-to on testing regulators like this, 4 terminal load sensing error reduction is demonstrated. Airflow and thermal camera measuremements are …