13003 Transistor Joule Thief

hey! today I will show you how to make a joule thief with a transistor I bought from an old adapter. you can find this transistor in cheap adapters

• LED
• 13003 TRANSISTOR
• 20-0-20 ferrit toroid

you can desolder the transistor with soldering iron

connect positive lead of led to toroid

connect toroid to base pin of the transistor

connect positive lead of led to collector pin

connect negative lead of led to the emitter pin

We must connect the positive lead of the battery to the toroid and the negative lead to the emitter pin.