Energy from the Ground - Self powered generator by Barbosa and Leal

[totoalas]

A secondary encased in a copper or aluminum tube for induction

[truongcongduc4]

One more question. Where is the best point to put the earth connection?
The best point is in the centre of 2 turns coil. But you may make a mistake. Please don't forget. See these images for more detail.

[havuhung]

One more question. Where is the best point to put the earth connection?
The best point is in the centre of 2 turns coil. But you may make a mistake. Please don't forget. See these images for more detail.

Hi @truongcongduc4
Drawing on patent never shown true for all: They kept the (secret technology)! . .

[truongcongduc4]

Just make the experiment to test this case. Think it simple.

[tonygiang]

Gửi bạn Trương Công Đức , bạn đang ở đâu vậy?