File:Conventional Joule Thief with red LED.jpg

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English: Conventional Joule Thief, with red LED. The coil is not wound bifilar, the windings are sequential. White wire is the primary winding, the green wire is the feedback winding. Uses a "PN2222A" transistor and 1000 ohm resistor.
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Source "I took this picture after I built the device. Previously published: Not previously published." = Self-photographed
Author Acmefixer
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current00:11, 1 March 2012Thumbnail for version as of 00:11, 1 March 2012803 × 600 (210 KB)Acmefixer (talk | contribs){{subst:Upload marker added by en.wp UW}} {{Information |Description = {{en|Conventional Joule Thief, with red LED. The coil is not wound bifilar, the windings are sequential. White wire is the primary winding, the green wire is the feedback winding. ...

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