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Created page with "[[Category:ElectroKit]] == Goal == * Learn a way to use end of life batteries == Level == * You should already have done something on breadboard, it would make your life easier...."
[[Category:ElectroKit]]
== Goal ==
* Learn a way to use end of life batteries
== Level ==
* You should already have done something on breadboard, it would make your life easier. But it's still nice as an introduction to it.
== Component ==
* A ferrite core
* Some cable to do the solenoide
* a resistor (We don't really care about the ohm, between 100 and 400 should do the trick :))
* a simple led triggered by 1.4 volts
* a PNP transistor (in this case the 2N3904)
== How to ==
The circuit is as followed :
[[Joule_thieve.jpg]]
More picture will follow
== What is happening there ? ==
== Goal ==
* Learn a way to use end of life batteries
== Level ==
* You should already have done something on breadboard, it would make your life easier. But it's still nice as an introduction to it.
== Component ==
* A ferrite core
* Some cable to do the solenoide
* a resistor (We don't really care about the ohm, between 100 and 400 should do the trick :))
* a simple led triggered by 1.4 volts
* a PNP transistor (in this case the 2N3904)
== How to ==
The circuit is as followed :
[[Joule_thieve.jpg]]
More picture will follow
== What is happening there ? ==
