Hacking & Experiments

Testing 7 different brands of AA Alkaline batteries in two different configurations over 10 months to see if they leak. Duracell, Energizer, Varta, Panasonic, Fujitsu, HVP70 High Voltage Probe: https://www.eevblog.com/product/hvp70/ Subscribe on LBRY: https://lbry.tv/@eevblog:7 Forum: https://www.eevblog.com/forum/blog/eevblog-1274-long-term-alkaline-battery-leakage-testing/ Podcast: Download

Part 2 of the LED Flicker investigation. Modding the driver for input and output capacitance and it’s effect on power factor correction and thermal performance. Podcast: Download

Dave investigates why his new LED panel lights are flickering on camera. Teardown and measurement time. Forum HERE Podcast: Download

How to convert a dumpster Sony CRT TV into a retro computer RGB monitor. Going through the design considerations, schematics, datasheets and the “jungle chip” and how to feed in the RGB signal and switch it. Also a look at the the old school CGA video interface on an IBM …

How good is your existing oscilloscopes FFT function with the $10 DIY EMC H-field probe compared with a dedicated spectrum analyser? Dave tries the DIY EMC probe with half a dozen different low cost scopes, so it turned into a bit of a practical FFT shootout: Rigol DS1054Z Siglent SDS1202X-E …