{"id":3030,"date":"2012-06-05T10:34:06","date_gmt":"2012-06-05T17:34:06","guid":{"rendered":"http:\/\/rustybolt.info\/wordpress\/?p=3030"},"modified":"2012-09-20T23:08:09","modified_gmt":"2012-09-21T06:08:09","slug":"2012-06-05","status":"publish","type":"post","link":"https:\/\/rustybolt.info\/wordpress\/?p=3030","title":{"rendered":"2012-06-05 4 White LEDs + 1 Yellow in Project Case &#8211; May 2003"},"content":{"rendered":"<p><a href=\"http:\/\/rustybolt.info\/wordpress\/?attachment_id=3728\" rel=\"attachment wp-att-3728\"><img loading=\"lazy\" decoding=\"async\" class=\"alignright size-medium wp-image-3728\" title=\"LEDVBoost4+1yel-M4serpac3612s\" src=\"http:\/\/rustybolt.info\/wordpress\/wp-content\/uploads\/2012\/06\/LEDVBoost4+1yel-M4serpac3612s-300x239.jpg\" alt=\"\" width=\"300\" height=\"239\" srcset=\"https:\/\/rustybolt.info\/wordpress\/wp-content\/uploads\/2012\/06\/LEDVBoost4+1yel-M4serpac3612s-300x239.jpg 300w, https:\/\/rustybolt.info\/wordpress\/wp-content\/uploads\/2012\/06\/LEDVBoost4+1yel-M4serpac3612s.jpg 720w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a>I built this in May, 2003 using an expensive plastic project case.\u00a0 It worked very well, and put out a .lot of light thanks to the high performance transistors.\u00a0 I added the yellow LED to make the light a little warmer, since white LEDs tend to have a lot of blue light. The <a href=\"http:\/\/www.belza.cz\/ledlight\/ledm.htm\">URL I gave<\/a> is still a good one.\u00a0 His schematic shows a BAT48 Schottky diode and capacitor on the output.\u00a0 I didn&#8217;t use these, the LEDs are directly connected to the collector of T2.<\/p>\n<p>This photo was taken before I glued the components down to make it rugged enough to withstand rough handling.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>I built this in May, 2003 using an expensive plastic project case.\u00a0 It worked very well, and put out a .lot of light thanks to the high performance transistors.\u00a0 I added the yellow LED to make the light a little warmer, since white LEDs tend to have a lot of blue light. The URL I<a href=\"https:\/\/rustybolt.info\/wordpress\/?p=3030\"> <\/p>\n<p> (Read More&#8230;)<\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5,4],"tags":[],"class_list":["post-3030","post","type-post","status-publish","format-standard","hentry","category-flashlight","category-joule-thief-smps-dc-dc"],"_links":{"self":[{"href":"https:\/\/rustybolt.info\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/3030","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=3030"}],"version-history":[{"count":10,"href":"https:\/\/rustybolt.info\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/3030\/revisions"}],"predecessor-version":[{"id":3727,"href":"https:\/\/rustybolt.info\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/3030\/revisions\/3727"}],"wp:attachment":[{"href":"https:\/\/rustybolt.info\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=3030"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/rustybolt.info\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=3030"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/rustybolt.info\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=3030"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}