{"id":68,"date":"2009-06-16T09:33:32","date_gmt":"2009-06-16T14:33:32","guid":{"rendered":"http:\/\/abrammorphew.com\/notes\/?p=68"},"modified":"2009-06-22T16:21:56","modified_gmt":"2009-06-22T21:21:56","slug":"opamps-opamps-opamps","status":"publish","type":"post","link":"http:\/\/abrammorphew.com\/notes\/2009\/06\/16\/opamps-opamps-opamps\/","title":{"rendered":"two ears. two channels."},"content":{"rendered":"<p><a href=\"http:\/\/abrammorphew.com\/notes\/wp-content\/uploads\/2009\/06\/IMG_1392.JPG\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/abrammorphew.com\/notes\/wp-content\/uploads\/2009\/06\/IMG_1392-300x225.jpg\" alt=\"stereo headphone amplifier circuit\" title=\"stereo headphone amplifier circuit\" width=\"300\" height=\"225\" class=\"alignnone size-medium wp-image-69\" srcset=\"http:\/\/abrammorphew.com\/notes\/wp-content\/uploads\/2009\/06\/IMG_1392-300x225.jpg 300w, http:\/\/abrammorphew.com\/notes\/wp-content\/uploads\/2009\/06\/IMG_1392-1024x768.jpg 1024w, http:\/\/abrammorphew.com\/notes\/wp-content\/uploads\/2009\/06\/IMG_1392.JPG 1600w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><\/p>\n<p>Double the circuit for stereo. This is a breadboard representation of a single &#8220;channel.&#8221; Each channel will have its separate PCB with controls. This one lacks a volume pot, but the output was more than enough. 750mW after hooking up the gain path resulted in ripping the ear buds out of my ears in order to avoid total deafness. Sadly to say, I have about as much luck avoiding electrocution as I do cutting myself with knives. I&#8217;ll keep to the low voltages for a little while longer. <\/p>\n","protected":false},"excerpt":{"rendered":"<p>Double the circuit for stereo. This is a breadboard representation of a single &#8220;channel.&#8221; Each channel will have its separate PCB with controls. This one lacks a volume pot, but the output was more than enough. 750mW after hooking up the gain path resulted in ripping the ear buds out of my ears in order [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[21,26,24,20,23],"class_list":["post-68","post","type-post","status-publish","format-standard","hentry","category-notes","tag-amplifier","tag-breadboard","tag-circuit","tag-lm386","tag-stereo"],"_links":{"self":[{"href":"http:\/\/abrammorphew.com\/notes\/wp-json\/wp\/v2\/posts\/68","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/abrammorphew.com\/notes\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/abrammorphew.com\/notes\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/abrammorphew.com\/notes\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/abrammorphew.com\/notes\/wp-json\/wp\/v2\/comments?post=68"}],"version-history":[{"count":3,"href":"http:\/\/abrammorphew.com\/notes\/wp-json\/wp\/v2\/posts\/68\/revisions"}],"predecessor-version":[{"id":88,"href":"http:\/\/abrammorphew.com\/notes\/wp-json\/wp\/v2\/posts\/68\/revisions\/88"}],"wp:attachment":[{"href":"http:\/\/abrammorphew.com\/notes\/wp-json\/wp\/v2\/media?parent=68"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/abrammorphew.com\/notes\/wp-json\/wp\/v2\/categories?post=68"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/abrammorphew.com\/notes\/wp-json\/wp\/v2\/tags?post=68"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}