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Joule Thief, Lighting 100 LED's!!! with 1 AA Battery

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Back By Popular Demanded!! Really easy, just time consuming :) Using 5... 2n2222's transistors and no resistor. Coil is 21 turns of 24ga, no core. LED's 3.5 volts. Nothing like some good old hf!! Thanks:)
  • Thanh Nguyen

    Sir please share your circuit diagram with me.
    It is my mail id bahkyu58@gmail.com