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For the term "powerful joule thief charger".

Solar Joule Thief HEWEY Boxed

This is the ‘Automatic Solar Joule Thief’—-“Hewey”–boxed. The device is a simple Joule Thief LED/charger circuit with an automatic solar charger attached. It uses super capacitors instead of batteries to store the energy. “Hewey”…

Lawrence Tseung Fleet circuit Joule Thief power analysing measurement test PART 1/2

This is the first part of the power measurement scope tests of the Lawrence Tseung Fleet Joule Thief circuit done by Stefan Hartmann, the admin of OverUnity.com . http://www.overunity.com/12686/is-joule-thief-circuit-gets-overunity/1065 Lawrence claimed the circuit to…

Lawrence Tseung Fleet circuit Joule Thief power measurement analysing test PART 2/2

This is the second part of the power measurement scope tests of the Lawrence Tseung Fleet Joule Thief circuit done by Stefan Hartmann, the admin of OverUnity.com . http://www.overunity.com/12686/is-joule-thief-circuit-gets-overunity/1065 Lawrence claimed the circuit to…