{"id":8943,"date":"2019-09-23T19:24:20","date_gmt":"2019-09-23T19:24:20","guid":{"rendered":"https:\/\/stevepedwards.today\/stevepedwards.com\/ElectronicsStuff\/?p=8943"},"modified":"2019-09-24T20:49:44","modified_gmt":"2019-09-24T19:49:44","slug":"16mhz-crystal-oscillator-actually-at-16mhz","status":"publish","type":"post","link":"https:\/\/stevepedwards.today\/ElectronicsStuff\/16mhz-crystal-oscillator-actually-at-16mhz\/","title":{"rendered":"16Mhz Crystal Oscillator Actually at 16Mhz!"},"content":{"rendered":"<p><iframe loading=\"lazy\" title=\"#123: Build a crystal oscillator from schematic thru prototype construction and testing - DIY\" width=\"1778\" height=\"1000\" src=\"https:\/\/www.youtube.com\/embed\/blalAktxFoI?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-8944\" src=\"https:\/\/stevepedwards.today\/ElectronicsStuff\/wp-content\/uploads\/2019\/09\/colpittsosc.png\" alt=\"\" width=\"768\" height=\"596\" srcset=\"https:\/\/stevepedwards.today\/ElectronicsStuff\/wp-content\/uploads\/2019\/09\/colpittsosc.png 768w, https:\/\/stevepedwards.today\/ElectronicsStuff\/wp-content\/uploads\/2019\/09\/colpittsosc-300x233.png 300w\" sizes=\"auto, (max-width: 768px) 100vw, 768px\" \/><br \/>\nAgain, due to the breadboard affects on crystals, my-\u00a0 circuit was slightly different than Alan's by the lucky trial and error of my incorrect cap value components removal - including a floating caramic cap at the base of TR1 - at full PSU 30V before this thing kick started at a stable 15.9982MHz.<br \/>\nI removed the top 10nF cap and one 470pF (mine was a different value anyway) from ground., leaving one floating...(aerial!?). So touchy! Just connecting the probe ground can stop it..<br \/>\n17V gives a 1Vpp sine wave - if you don't move anything!:<br \/>\n<img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-8948\" src=\"https:\/\/stevepedwards.today\/ElectronicsStuff\/wp-content\/uploads\/2019\/09\/16mhz.png\" alt=\"\" width=\"816\" height=\"455\" srcset=\"https:\/\/stevepedwards.today\/ElectronicsStuff\/wp-content\/uploads\/2019\/09\/16mhz.png 816w, https:\/\/stevepedwards.today\/ElectronicsStuff\/wp-content\/uploads\/2019\/09\/16mhz-300x167.png 300w, https:\/\/stevepedwards.today\/ElectronicsStuff\/wp-content\/uploads\/2019\/09\/16mhz-768x428.png 768w\" sizes=\"auto, (max-width: 816px) 100vw, 816px\" \/><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Again, due to the breadboard affects on crystals, my-\u00a0 circuit was slightly different than Alan's by the lucky trial and error of my incorrect cap value components removal - including a floating caramic cap at the base of TR1 - at full PSU 30V before this thing kick started at a stable 15.9982MHz. I removed <a href=\"https:\/\/stevepedwards.today\/ElectronicsStuff\/16mhz-crystal-oscillator-actually-at-16mhz\/\" class=\"more-link\">...<span class=\"screen-reader-text\">  16Mhz Crystal Oscillator Actually at 16Mhz!<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5,2],"tags":[],"class_list":["post-8943","post","type-post","status-publish","format-standard","hentry","category-tech-studies","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/stevepedwards.today\/ElectronicsStuff\/wp-json\/wp\/v2\/posts\/8943","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/stevepedwards.today\/ElectronicsStuff\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/stevepedwards.today\/ElectronicsStuff\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/stevepedwards.today\/ElectronicsStuff\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/stevepedwards.today\/ElectronicsStuff\/wp-json\/wp\/v2\/comments?post=8943"}],"version-history":[{"count":1,"href":"https:\/\/stevepedwards.today\/ElectronicsStuff\/wp-json\/wp\/v2\/posts\/8943\/revisions"}],"predecessor-version":[{"id":8955,"href":"https:\/\/stevepedwards.today\/ElectronicsStuff\/wp-json\/wp\/v2\/posts\/8943\/revisions\/8955"}],"wp:attachment":[{"href":"https:\/\/stevepedwards.today\/ElectronicsStuff\/wp-json\/wp\/v2\/media?parent=8943"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/stevepedwards.today\/ElectronicsStuff\/wp-json\/wp\/v2\/categories?post=8943"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/stevepedwards.today\/ElectronicsStuff\/wp-json\/wp\/v2\/tags?post=8943"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}