{"id":7130,"date":"2013-04-20T15:12:13","date_gmt":"2013-04-20T22:12:13","guid":{"rendered":"http:\/\/rustybolt.info\/wordpress\/?p=7130"},"modified":"2013-05-31T08:45:17","modified_gmt":"2013-05-31T15:45:17","slug":"2013-04-20-tbd","status":"publish","type":"post","link":"https:\/\/rustybolt.info\/wordpress\/?p=7130","title":{"rendered":"2013-04-20 Heavy Duty Joule Thief"},"content":{"rendered":"<p><a href=\"http:\/\/rustybolt.info\/wordpress\/wp-content\/uploads\/2013\/04\/DSC_0029S3.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignright size-medium wp-image-7466\" alt=\"DSC_0029S3\" src=\"http:\/\/rustybolt.info\/wordpress\/wp-content\/uploads\/2013\/04\/DSC_0029S3-300x278.jpg\" width=\"300\" height=\"278\" srcset=\"https:\/\/rustybolt.info\/wordpress\/wp-content\/uploads\/2013\/04\/DSC_0029S3-300x278.jpg 300w, https:\/\/rustybolt.info\/wordpress\/wp-content\/uploads\/2013\/04\/DSC_0029S3.jpg 512w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a>This JT uses a larger core that is typically found in low frequency applications such as\u00a0 EMI and RFI suppressors.\u00a0 This toroid has high permeability so it doesn&#8217;t take many turns to give a high inductance for a JT.\u00a0 The FT87-75 can be found at Surplus Sales for a dollar or so apiece.<\/p>\n<p>The 2SC2500 transistor is a high gain, high current NPN, made for circuits such as a JT.\u00a0 The case is larger and it can handle more power, but the transistor doesn&#8217;t get warm.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>This JT uses a larger core that is typically found in low frequency applications such as\u00a0 EMI and RFI suppressors.\u00a0 This toroid has high permeability so it doesn&#8217;t take many turns to give a high inductance for a JT.\u00a0 The FT87-75 can be found at Surplus Sales for a dollar or so apiece. The 2SC2500<a href=\"https:\/\/rustybolt.info\/wordpress\/?p=7130\"> <\/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":[1],"tags":[],"class_list":["post-7130","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/rustybolt.info\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/7130","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=7130"}],"version-history":[{"count":6,"href":"https:\/\/rustybolt.info\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/7130\/revisions"}],"predecessor-version":[{"id":7463,"href":"https:\/\/rustybolt.info\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/7130\/revisions\/7463"}],"wp:attachment":[{"href":"https:\/\/rustybolt.info\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=7130"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/rustybolt.info\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=7130"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/rustybolt.info\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=7130"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}