![File:Conventional Joule Thief with red LED.jpg](http://up.wiki.x.io/wikipedia/commons/thumb/c/ca/Conventional_Joule_Thief_with_red_LED.jpg/800px-Conventional_Joule_Thief_with_red_LED.jpg)
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current | 00:11, 1 March 2012 | ![]() | 803 × 600 (210 KB) | Acmefixer | {{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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