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Joule-Thief™ Module 60hz Demonstration Kit |
Joule-Thief™ Fixed Frequency Module 50,60,120 Hz |
Joule-Thief™ Fixed Frequency Module 50,60,120 Hz w/ Ruler |
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Joule-Thief™ Fixed Frequency Module 50,60,120 Hz (Front and Back) |
Joule-Thief™ Random VIbration Module |
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