Joule Thief, Lighting 61 LED's with 1 AA Battery

42 Views
Published
Really easy, just time consuming :) Using ten 2n2222's and no resistor on the base. Coil is 10 turns of 24ga, works with or without core. LED's 3.5 volts = 210 volts, running on 1.5 volts. Nothing like some good old HF!! Thanks:)
Be the first to comment