COILS The mass is said to be 1 part copper to 1.6 parts aluminum, but an aluminum rectangular wire used in place of a round copper wire can be made very light without increasing its size.
Coil commentary | The mass is said to be 1 part copper to 1.6 parts aluminum, but an aluminum rectangular wire used in place of a round copper wire can be made very light without increasing its size. Unlike an enamel wire, its film-type winding leaves no pinhole. It works well in high-frequency range as well. It is insulated with Kapton wrapping. [Left: Round enamel wire φ3, 30 turns. Right: Aluminum rectangular wire 3.0 t x 8.0 w, 14 turns.] |
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