Folding Ferrite toroid up to 5,4mm câble diam.

Construction –

Taigoehua 5pcs 42 * 24 * 16mm Toroid Core,Ferrite Rings Toroid core Iron (Black) : Industrial & Scientific

Cobweb Antenna

Folding Ferrite toroid up to 11,7mm cable diam.

PATIKIL Ferrite Toroid Core 11.5mm x 5mm x 25mm, 10 Pack Transformer Inductor Coil Ring, Black: : Industrial & Scientific

Ferrite-2643167851

Ferrite-2643167851

Ferrite / Iron powder Archieven - HF kits

Ferrite cable core 4.95mm - 31 material – Ferrite-shop

PATIKIL Ferrite Toroid Core 11.5mm x 5mm x 25mm, 10 Pack Transformer Inductor Coil Ring, Black: : Industrial & Scientific