{"id":15740,"date":"2021-04-28T01:03:48","date_gmt":"2021-04-28T08:03:48","guid":{"rendered":"https:\/\/rustybolt.info\/wordpress\/?p=15740"},"modified":"2021-04-28T01:05:28","modified_gmt":"2021-04-28T08:05:28","slug":"2021-04-28-colpitts-oscillator-for-fm-bcb","status":"publish","type":"post","link":"https:\/\/rustybolt.info\/wordpress\/?p=15740","title":{"rendered":"2021-04-28 Colpitts Oscillator For FM BCB"},"content":{"rendered":"<p>This is a low power oscillator using an air core coil and silver mica capacitors for stability.  Parts values are subject to the frequency needed.  There is no modulation.  For FM the 10 pF capacitor would be lower and include a reverse biased diode as a varicap in parallel.  The audio should be across this diode.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/rustybolt.info\/wordpress\/wp-content\/uploads\/2021\/04\/clapp_not-25406269443670380131.png\" class=\"wp-image-15739 alignnone size-full\" width=\"1038\" height=\"959\" data-temp-aztec-id=\"6b9c15e4-9b07-4b01-a8c2-994e449b3f22\" srcset=\"https:\/\/rustybolt.info\/wordpress\/wp-content\/uploads\/2021\/04\/clapp_not-25406269443670380131.png 1038w, https:\/\/rustybolt.info\/wordpress\/wp-content\/uploads\/2021\/04\/clapp_not-25406269443670380131-300x277.png 300w, https:\/\/rustybolt.info\/wordpress\/wp-content\/uploads\/2021\/04\/clapp_not-25406269443670380131-1024x946.png 1024w, https:\/\/rustybolt.info\/wordpress\/wp-content\/uploads\/2021\/04\/clapp_not-25406269443670380131-768x710.png 768w\" sizes=\"auto, (max-width: 1038px) 100vw, 1038px\" \/><\/p>\n","protected":false},"excerpt":{"rendered":"<p>This is a low power oscillator using an air core coil and silver mica capacitors for stability. Parts values are subject to the frequency needed. There is no modulation. For FM the 10 pF capacitor would be lower and include a reverse biased diode as a varicap in parallel. The audio should be across this<a href=\"https:\/\/rustybolt.info\/wordpress\/?p=15740\"> <\/p>\n<p> (Read More&#8230;)<\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[310,330,7,261],"tags":[1005,1006,341],"class_list":["post-15740","post","type-post","status-publish","format-standard","hentry","category-fm-band","category-oscillators","category-radio-frequency","category-transmitter","tag-colpitts","tag-fm","tag-oscillator"],"_links":{"self":[{"href":"https:\/\/rustybolt.info\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/15740","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/rustybolt.info\/wordpress\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/rustybolt.info\/wordpress\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/rustybolt.info\/wordpress\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/rustybolt.info\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=15740"}],"version-history":[{"count":1,"href":"https:\/\/rustybolt.info\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/15740\/revisions"}],"predecessor-version":[{"id":15741,"href":"https:\/\/rustybolt.info\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/15740\/revisions\/15741"}],"wp:attachment":[{"href":"https:\/\/rustybolt.info\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=15740"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/rustybolt.info\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=15740"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/rustybolt.info\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=15740"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}