{"id":1128,"date":"2014-05-23T05:05:26","date_gmt":"2014-05-23T10:05:26","guid":{"rendered":"http:\/\/abrammorphew.com\/notes\/?p=1128"},"modified":"2026-03-16T16:21:33","modified_gmt":"2026-03-16T21:21:33","slug":"lfo-modulated-simple-vcf","status":"publish","type":"post","link":"http:\/\/abrammorphew.com\/notes\/2014\/05\/23\/lfo-modulated-simple-vcf\/","title":{"rendered":"LFO modulated simple VCF"},"content":{"rendered":"<p><a href=\"http:\/\/abrammorphew.com\/notes\/wp-content\/uploads\/2014\/05\/lfo_vcf_rev_aa001.png\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/abrammorphew.com\/notes\/wp-content\/uploads\/2014\/05\/lfo_vcf_rev_aa001.png\" alt=\"lfo_vcf_rev_aa001\" width=\"906\" height=\"713\" class=\"alignnone size-full wp-image-1129\" \/><\/a><\/p>\n<p>this is a rough draft of a circuit i&#8217;ve been working on based of the Simple VCF circuit floating out there. a big thanks to the original author for that. i&#8217;m sure there are some mistakes in here. it&#8217;s an odd one for sure, but it works on the breadboard. the opamp is a TL072. square-wave input from the generator comes out pretty sine-wave like which is what is desired. the output is a little noisy, but i will work that out with time. <\/p>\n","protected":false},"excerpt":{"rendered":"<p>this is a rough draft of a circuit i&#8217;ve been working on based of the Simple VCF circuit floating out there. a big thanks to the original author for that. i&#8217;m sure there are some mistakes in here. it&#8217;s an odd one for sure, but it works on the breadboard. the opamp is a TL072. [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":1129,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[24,113,184,131,261],"class_list":["post-1128","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-notes","tag-circuit","tag-lfo","tag-tl072","tag-tl082","tag-vcf"],"_links":{"self":[{"href":"http:\/\/abrammorphew.com\/notes\/wp-json\/wp\/v2\/posts\/1128","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=1128"}],"version-history":[{"count":1,"href":"http:\/\/abrammorphew.com\/notes\/wp-json\/wp\/v2\/posts\/1128\/revisions"}],"predecessor-version":[{"id":1130,"href":"http:\/\/abrammorphew.com\/notes\/wp-json\/wp\/v2\/posts\/1128\/revisions\/1130"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/abrammorphew.com\/notes\/wp-json\/wp\/v2\/media\/1129"}],"wp:attachment":[{"href":"http:\/\/abrammorphew.com\/notes\/wp-json\/wp\/v2\/media?parent=1128"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/abrammorphew.com\/notes\/wp-json\/wp\/v2\/categories?post=1128"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/abrammorphew.com\/notes\/wp-json\/wp\/v2\/tags?post=1128"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}