{"id":4261,"date":"2012-09-22T04:34:08","date_gmt":"2012-09-22T11:34:08","guid":{"rendered":"http:\/\/rustybolt.info\/wordpress\/?p=4261"},"modified":"2012-09-27T07:42:13","modified_gmt":"2012-09-27T14:42:13","slug":"2012-09-22","status":"publish","type":"post","link":"https:\/\/rustybolt.info\/wordpress\/?p=4261","title":{"rendered":"2012-09-22 Germanium Joule Thief Squeezes The Energizer Bunny"},"content":{"rendered":"<p><a href=\"http:\/\/rustybolt.info\/wordpress\/?attachment_id=4307\" rel=\"attachment wp-att-4307\"><img loading=\"lazy\" decoding=\"async\" class=\"alignright  wp-image-4307\" title=\"DSC_0184S3\" src=\"http:\/\/rustybolt.info\/wordpress\/wp-content\/uploads\/2012\/09\/DSC_0184S3-300x224.jpg\" alt=\"\" width=\"300\" height=\"224\" srcset=\"https:\/\/rustybolt.info\/wordpress\/wp-content\/uploads\/2012\/09\/DSC_0184S3-300x224.jpg 300w, https:\/\/rustybolt.info\/wordpress\/wp-content\/uploads\/2012\/09\/DSC_0184S3.jpg 802w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a>Here is my latest germanium Joule Thief, shown squeezing the last few hundred millivolts out of the Energizer Bunny (&#8220;It just keep going and going&#8230;&#8221;).\u00a0 This is a real Zombie Battery Killer &#8211; that last half volt left after the regular silicon JT has given up is now sucked out, down to less than0.2V.\u00a0 \u00a0 This one uses a General\u00a0 Electric 2N525, most likely made in the early 1960s.\u00a0 G.E. was a big manufacturer of semiconductors, but left to manufacture the appliances such as the Toaster Ovens and coffee makers we&#8217;re all too familiar with, and jet engines.\u00a0 I still have one of their gigantic copper oxide rectifier stacks which looks like a <a href=\"http:\/\/en.wikipedia.org\/wiki\/Selenium_rectifier\">selenium rectifier stack<\/a> only the plates are round, not square.\u00a0 And I have several thousand of the GE 2N5172 transistors, which are still available today from other manufacturers.\u00a0 The G.E. Transistor Manual, 7th Ed. (1967) was the bible for any engineer or tech working with solid state components.\u00a0 But today, most germanium parts are made by plants in eastern European countries and have been almost totally replaced by silicon in modern equipment.<\/p>\n<p>I have been measuring the AA cells after they have been drained by the germanium Joule Thiefs, and the cells measure less than 200 millivolts, some as low as 150 mV.\u00a0 When disconnected, they will recover some voltage, but they are much more lifeless than when they were on a silicon Joule Thief.<\/p>\n<p>Back to experimenting&#8230;<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Here is my latest germanium Joule Thief, shown squeezing the last few hundred millivolts out of the Energizer Bunny (&#8220;It just keep going and going&#8230;&#8221;).\u00a0 This is a real Zombie Battery Killer &#8211; that last half volt left after the regular silicon JT has given up is now sucked out, down to less than0.2V.\u00a0 \u00a0<a href=\"https:\/\/rustybolt.info\/wordpress\/?p=4261\"> <\/p>\n<p> (Read More&#8230;)<\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4,80],"tags":[112,115,30,113,114,111],"class_list":["post-4261","post","type-post","status-publish","format-standard","hentry","category-joule-thief-smps-dc-dc","category-transistors","tag-general-electric","tag-germanium-transistor","tag-joule-thief","tag-silicon","tag-silicon-transistor","tag-zombie-battery"],"_links":{"self":[{"href":"https:\/\/rustybolt.info\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/4261","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=4261"}],"version-history":[{"count":14,"href":"https:\/\/rustybolt.info\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/4261\/revisions"}],"predecessor-version":[{"id":4305,"href":"https:\/\/rustybolt.info\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/4261\/revisions\/4305"}],"wp:attachment":[{"href":"https:\/\/rustybolt.info\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=4261"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/rustybolt.info\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=4261"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/rustybolt.info\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=4261"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}