In this guest video Bob DuHamel from RSD Academy does a follow-up to my opamp tutorial video explaining with a neat visual aid how the virtual ground on an inverting opamp works. Check out his channel here and subscribe: https://www.youtube.com/channel/UCOausWDNRDJikQ11gSLj7nA Forum: http://www.eevblog.com/forum/blog/guest-video-bob-duhamel-how-opamp-virtual-grounds-work/ EEVblog Main Web Site: http://www.eevblog.com The 2nd EEVblog Channel: http://www.youtube.com/EEVblog2 ... https://www.youtube.com/watch?v=HbMnQdRzD8A

Meet 13yo Josh, the winner of the Jaycar $5 scope, and designer of Framework laptop boards! https://lectronz.com/products/uart-expansion-card His Patreon: https://www.patreon.com/i2clabs More boards: https://imgur.com/a/SPRrFV7 00:00 - Meet Josh 03:22 - Mettler Toledo high volatge generator 04:41 - New electric field NASA space suits https://sservi.nasa.gov/wp-content/uploads/2015/08/farrell_spacesuit_pdf.pdf 05:37 - Teardown: OMG it's full of rust! 10:06 - Casio VI-9850GB Plus PAL projector calculator! 19:59 - Kogan video doorbell teardown + Dick Smith story 26:48 - Tom Moffat & the Listening Post kits! 35:47 - Reference Capacitor Box https://www.ak-modul-bus.de/stat/referenz_kondensatorn_reference_caps,pd0,,REFERENCE-CAPS.html 45:00 - Creative Outlier Pro active noise cancelling wireless ear buds. https://au.creative.com/p/headphones-headsets/creative-outlier-pro 50:09 - Finirsi DSO-TC2 Portable Digital Oscilloscope Transistor Tester + SG-003A Process Meter Full video: https://www.youtube.com/watch?v=f_SdM6sXHD4 Forum: https://www.eevblog.com/forum/blog/eevblog-1496-winning-mailbag/ Support the EEVblog on: Patreon: http://www.patreon.com/eevblog Odysee: https://odysee.com/@eevblog:7 Web Site: http://www.eevblog.com EEVblog2: http://www.youtube.com/EEVblog2 EEVdiscover: https://www.youtube.com/eevdiscover AliExpress Affiliate: http://s.click.aliexpress.com/e/c2LRpe8g Buy anything through that link and Dave gets a commission at no cost to you. Donate With Bitcoin & Other Crypto Currencies! https://www.eevblog.com/crypto-currency/ T-Shirts: http://teespring.com/stores/eevblog #ElectronicsCreators #Mailbag ... https://www.youtube.com/watch?v=6XnrZpPYgBg

First Test of Odysee Live + Scope Draw

For those who continue to ask really basic questions about the blog. What other EEVblog stuff there is on the Internet?, and where to access it. Sorry for those who do know this stuff, nothing new here for you! Forum Topic: http://www.eevblog.com/forum/blog/eevblog-394-eevblog-online-tour/ EEVblog Main Web Site: http://www.eevblog.com EEVblog Amazon Store: http://astore.amazon.com/eevblogstore-20 Donations: ... https://www.youtube.com/watch?v=asmQzCvs8F4