Most Thievenest - 7-inch Joule Thief

7-inch Joule Thief powered by a smaller 2-inch joule thief.
10 LEDs from a (mostly) dead AA battery.

Earth Battery and Joule Thief, operating at 0.86v @ 10ma

achieved over 10 milliamps with an earth battery, composed of 4 dozen soft iron electrodes on the negative side.

EB -experimental test 16

30 LEDs blinking from an experimental Earth Battery set-up

Earth Battery and Joule Thief lighting 3 LEDs

This earth battery is putting out 0.98v @ 3.3ma
connected to a Joule Thief
pulsing 3 LEDs

Converting Static Electricity - Phase 1, Test 3: Demonstr...

Converting electricity from the Mini Wimshurst Machine, to flash an LED.
The small red coil is essentially an "high-voltage resistor" - a ...   more Converting electricity from the Mini Wimshurst Machine, to flash an LED.
The small red coil is essentially an "high-voltage resistor" - a coil in a megnetic field, with the intent of increasing the impedance of the coil.   less