{"id":3647,"date":"2025-07-09T09:57:00","date_gmt":"2025-07-08T23:57:00","guid":{"rendered":"https:\/\/www.homebrewradio.us\/blog\/2025\/07\/09\/oscillation-negative-resistance-barkhausen-explained-very-well\/"},"modified":"2025-07-22T12:36:16","modified_gmt":"2025-07-22T02:36:16","slug":"oscillation-negative-resistance-barkhausen-explained-very-well","status":"publish","type":"post","link":"https:\/\/www.homebrewradio.us\/blog\/2025\/07\/09\/oscillation-negative-resistance-barkhausen-explained-very-well\/","title":{"rendered":"Oscillation!  Negative Resistance! Barkhausen Explained Very Well!"},"content":{"rendered":"<p><iframe loading=\"lazy\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" allowfullscreen=\"\" frameborder=\"0\" height=\"247\" referrerpolicy=\"strict-origin-when-cross-origin\" src=\"https:\/\/www.youtube.com\/embed\/EG3BSn8MzHc?si=EFIcYJAaunaIE5aV?rel=0\" title=\"YouTube video player\" width=\"440\"><\/iframe><\/p>\n<div><\/div>\n<div><b>It is not every day that we find a web site or a YouTube video that discusses negative resistance and the Barkhausen criteria. But that day has arrived my friends! <\/b><\/div>\n<div><b><br \/><\/b><\/div>\n<div><b>This <a href=\"https:\/\/www.youtube.com\/@AllElectronicsChannel\">All Electronics <\/a>fellow appears to be Italian. I really like his enthusiasm. The universe! Differential equations! The passion seems to jump out of the video when he talks about how the negative resistance &#8220;enhances the oscillation!&#8221; It is really great.<\/b><\/div>\n<div><b><br \/><\/b><\/div>\n<div><b>He even talks about how thermal noise gets the oscillation going. This is something that I struggled with as a kid. It took me a while to find a good source that explained this. He explains it very well. <\/b><\/div>\n<div><b><br \/><\/b><\/div>\n<div><b>Thanks to master homebrewer Pete Juliano (another Italian!) for alerting us many years ago to the Barkhausen criteria. And thanks to <a href=\"https:\/\/hackaday.com\/2025\/07\/08\/oscillator-negativity-is-a-good-thing\/\">Al Williams at Hack-A-Day<\/a> for alerting us to this great video. <\/b><\/div>\n<div><b><br \/><\/b><\/div>\n<div><b>Here is the All Electronics channel on YouTube: <a href=\"https:\/\/www.youtube.com\/@AllElectronicsChannel\">https:\/\/www.youtube.com\/@AllElectronicsChannel<\/a><\/b><\/div>\n","protected":false},"excerpt":{"rendered":"<p>It is not every day that we find a web site or a YouTube video that discusses negative resistance and the Barkhausen criteria. But that day has arrived my friends! This All Electronics fellow appears to be Italian. I really like his enthusiasm. The universe! Differential equations! The passion seems to jump out of the &hellip; <a href=\"https:\/\/www.homebrewradio.us\/blog\/2025\/07\/09\/oscillation-negative-resistance-barkhausen-explained-very-well\/\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> &#8220;Oscillation!  Negative Resistance! Barkhausen Explained Very Well!&#8221;<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[140,41,53],"tags":[],"class_list":["post-3647","post","type-post","status-publish","format-standard","hentry","category-italy","category-juliano-pete","category-vfo"],"_links":{"self":[{"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/posts\/3647","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/comments?post=3647"}],"version-history":[{"count":1,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/posts\/3647\/revisions"}],"predecessor-version":[{"id":11065,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/posts\/3647\/revisions\/11065"}],"wp:attachment":[{"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/media?parent=3647"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/categories?post=3647"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.homebrewradio.us\/blog\/wp-json\/wp\/v2\/tags?post=3647"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}