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

An explanation of near-field vs far-field in relation to EMC compliance testing. H-field magnetic probes vs e-field electric probes. Explanation extraction from video #1176 Wideband EMC log-periodic antenna: http://s.click.aliexpress.com/e/DQeIdwZ6 Near field probes: http://s.click.aliexpress.com/e/N5wdxeFQ Subscribe on LBRY: https://lbry.tv/@eevblog:7 Forum: https://www.eevblog.com/forum/blog/eevblog-1273-emc-near-field-vs-far-field-explained/ Podcast: Download

More Mailbag! Subscribe to Dave on LBRY: https://lbry.tv/@eevblog:7 SPOILERS: Vintage Tek Scopes Group https://groups.io/g/TekScopes 2:57 8 Cent Touch Sensor Chip TTP223 from TonTek: https://lcsc.com/products/Touch-Screen-Controller-ICs_902.html?q=ttp223 http://www.tontek.com.tw/product/product2?lang=en&idx=42 9:08 DefPom’s new open source BOM tool MyPartsBin: https://mypartsbin.com/ https://www.youtube.com/user/TheDefpom Casio FX-730P Calculator 11:49 FREE Multimeters went to a good cause, and Amazon Returns 14:07 …

A 100kW wind generator in only 7sqm? Less than 2% the size of traditional wind turbines! Basic physics and the whiteboard to the rescue! A look at the claims of the AmericanWind WindWall “turbine” wind power generator. http://americanwindinc.com/our-products-3/advanced-windwall/ And a Wind Power 101 tutorial on how wind turbine calculations work …

What is the best electronics textbook? A look at four very similar electronics device level texbooks: Conclusion is at 40:35 Electronic Devices by Floyd: https://amzn.to/2s4BSnK Electronic Principles by Malvino & Bates: https://amzn.to/2DX88f3 Microelectronic Circuits by Sedra & Smith: https://amzn.to/2s5nBXX Electronic Devices and Circuit Theory by Boylestad: https://amzn.to/33TF2rC Also: The Art …