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Magnetics Inc. and Magnetic Metals supply Magnesil, Orthonol,
Permalloy Supermendur Tape Wound Toroids in Aluminum Cases. The
Figure below shows what the look like in Cross Section. The Case
and G-10 Cover are are coated with an Epoxy to provide a hermetic
seal, and a smooth insulating surface to wind on. If you use a wire
larger the AWG 30, you could insulate the Case by wrapping the
toroid with 1 or two layers of Mylar Film Tape (3M # 56), or Kapton
Tape. Then wrap the toroid with PTFE Film to provide a smoother
slick winding surface.
I know Magnetics Supplies Cased cores with ODs from .225 to 8.21
inches.
For more information check out their Web Sites:
Magnetics Inc. Web Site is www.mag-inc.com
Magnetic Metals Web Site is www.magmet.com
I hope this is of some help.
Dave Strout
2001 West Enterprise Ave.
Muncie, IN 47304
(765)-288-6561
Magnetics Inc. and Magnetic Metals supply Magnesil, Orthonol,
Permalloy Supermendur Tape Wound Toroids in Aluminum Cases. The
Figure below shows what the look like in Cross Section. The Case
and G-10 Cover are are coated with an Epoxy to provide a hermetic
seal, and a smooth insulating surface to wind on. If you use a wire
larger the AWG 30, you could insulate the Case by wrapping the
toroid with 1 or two layers of Mylar Film Tape (3M # 56), or Kapton
Tape. Then wrap the toroid with PTFE Film to provide a smoother
slick winding surface.
I know Magnetics Supplies Cased cores with ODs from .225 to 8.21
inches.
For more information check out their Web Sites:
Magnetics Inc. Web Site is www.mag-inc.com
Magnetic Metals Web Site is www.magmet.com
I hope this is of some help.
Dave Strout
2001 West Enterprise Ave.
Muncie, IN 47304
(765)-288-6561