This was from June, 2003. I still hadn’t tried to experiment with the single transistor Joule Thief circuit to get it to be powerful enough to drive 3 LEDs. The circuit I used is found here.
2012-08-04 LED V Boost, 2 Cell
This was from June, 2003. I still hadn’t tried to experiment with the single transistor Joule Thief circuit to get it to be powerful enough to drive 3 LEDs. The circuit I used is found here.
