Joule Thief

[Mk1]

@kb24

By using the multimeter set to resistance , that will help you map the transformer , and see witch ends are connected together , and the resistance value will help determine the coil length .

Mark

[dasimpson]

dasimpson, sorry to ask this but how am i suppose to check the resistance of the transformer pin? do i have to put the transformer back to circuit and put in battery? or i just take the multimeter measure transformer pin without connect transformer to circuit?

exactly as the mk1 said above lol

[osiris]

here is a picture of 2 loa's 3.5 watt lights total 7watts of light from 1 aa battery

yawn ..

osiris

damm bright eh! 

run time is about 4 hours powering 2 3.5 watt lights ..  from the cheepest aa batteries i could find! 1.5vdc
there is no recharge employed

from 1 aa it will run 7.5 hours  FULL BRIGHTNESS! 1 lite 

[dasimpson]

here is a picture of 2 loa's 3.5 watt lights total 7watts of light from 1 aa battery

yawn ..

osiris

damm bright eh! 

this is the first thing i seen you post that warrents forther investigation

is this the same unit from the past few pages ?

[dasimpson]

here is a picture of 2 loa's 3.5 watt lights total 7watts of light from 1 aa battery

yawn ..

osiris

damm bright eh! 

run time is about 4 hours powering 2 3.5 watt lights ..  from the cheepest aa batteries i could find! 1.5vdc
there is no recharge employed

from 1 aa it will run 7.5 hours  FULL BRIGHTNESS! 1 lite

on this unit he powers the leds from a pickup coil on the toriode