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Step 6Buzzer coil
this coil came from a ordinary buzzer such as you might find on a dryer or washing machine or used as an alarm on industrial equipment.
as you can see i have it wired to a cord to test and yes it did work but only one way.
again the magnet is from a hard drive{gotta love 40 meg drives}
the third picture here is of a coil that did work but very faint and thats because theres just not enough copper wire in it.
length of the wire is the deciding factor a suitable coil can be made from any thickness wire but the bigger the wire the larger the coil needs to be{house wire pickup would be is as big as a volkswagen}.
as you can see i have it wired to a cord to test and yes it did work but only one way.
again the magnet is from a hard drive{gotta love 40 meg drives}
the third picture here is of a coil that did work but very faint and thats because theres just not enough copper wire in it.
length of the wire is the deciding factor a suitable coil can be made from any thickness wire but the bigger the wire the larger the coil needs to be{house wire pickup would be is as big as a volkswagen}.
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