{"id":61,"date":"2011-11-28T04:10:50","date_gmt":"2011-11-28T04:10:50","guid":{"rendered":"http:\/\/afrotechmods.com\/tutorials\/?p=61"},"modified":"2020-05-28T20:48:12","modified_gmt":"2020-05-28T20:48:12","slug":"amplifier-tutorial-super-spy-microphone-circuit","status":"publish","type":"post","link":"http:\/\/afrotechmods.com\/tutorials\/2011\/11\/28\/amplifier-tutorial-super-spy-microphone-circuit\/","title":{"rendered":"What is an op amp? Operational Amplifier tutorial &#038; super spy microphone circuit"},"content":{"rendered":"<p>Ever since the best decade of all time, the 1970s, people have been able to buy amplifiers in all-in-one chips rather than having to make them out of lots of discrete transistors. This video shows you the basics of op amps and has an example circuit where you build an amplifier to take a tiny microphone signal and amplify it to be audible on earbuds. The circuit is based on the LM324 quad op amp IC.<\/p>\n<style>.embed-container { position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden; max-width: 100%; } .embed-container iframe, .embed-container object, .embed-container embed { position: absolute; top: 0; left: 0; width: 100%; height: 100%; }<\/style>\n<div class=\"embed-container\"><iframe src=\"https:\/\/www.youtube.com\/embed\/TQB1VlLBgJE\" allow=\"accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen=\"\" frameborder=\"0\"><\/iframe><\/div>\n<p><a href=\"http:\/\/afrotechmods.com\/tutorials\/2011\/11\/28\/amplifier-tutorial-super-spy-microphone-circuit\/amplifier-2\/\" rel=\"attachment wp-att-86\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-86\" title=\"Amplifier circuit schematic\" src=\"http:\/\/afrotechmods.com\/tutorials\/wp-content\/uploads\/2011\/11\/amplifier1.jpg\" alt=\"Amplifier circuit schematic\" width=\"900\" height=\"632\" srcset=\"http:\/\/afrotechmods.com\/tutorials\/wp-content\/uploads\/2011\/11\/amplifier1.jpg 900w, http:\/\/afrotechmods.com\/tutorials\/wp-content\/uploads\/2011\/11\/amplifier1-300x210.jpg 300w\" sizes=\"auto, (max-width: 900px) 100vw, 900px\" \/><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Ever since the best decade of all time, the 1970s, people have been able to buy amplifiers in all-in-one chips rather than having to make them out of lots of discrete transistors. This video shows you the basics of op amps and has an example circuit where you build an amplifier to take a tiny [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":975,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[4],"tags":[11,30,83,85],"class_list":["post-61","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-beginner-tutorials","tag-amplifiers","tag-audio","tag-op-amp","tag-operational-amplifier"],"acf":[],"aioseo_notices":[],"jetpack_featured_media_url":"http:\/\/afrotechmods.com\/tutorials\/wp-content\/uploads\/2011\/11\/opamp-thumbnail-332x187.jpg","_links":{"self":[{"href":"http:\/\/afrotechmods.com\/tutorials\/wp-json\/wp\/v2\/posts\/61","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/afrotechmods.com\/tutorials\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/afrotechmods.com\/tutorials\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/afrotechmods.com\/tutorials\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/afrotechmods.com\/tutorials\/wp-json\/wp\/v2\/comments?post=61"}],"version-history":[{"count":17,"href":"http:\/\/afrotechmods.com\/tutorials\/wp-json\/wp\/v2\/posts\/61\/revisions"}],"predecessor-version":[{"id":1365,"href":"http:\/\/afrotechmods.com\/tutorials\/wp-json\/wp\/v2\/posts\/61\/revisions\/1365"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/afrotechmods.com\/tutorials\/wp-json\/wp\/v2\/media\/975"}],"wp:attachment":[{"href":"http:\/\/afrotechmods.com\/tutorials\/wp-json\/wp\/v2\/media?parent=61"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/afrotechmods.com\/tutorials\/wp-json\/wp\/v2\/categories?post=61"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/afrotechmods.com\/tutorials\/wp-json\/wp\/v2\/tags?post=61"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}