High-end Specification Ferrite Toroid Core Replacement for Amidon FT-240-43 or Fair-Rite 5943003801.

Decrease noise in antenna systems and improve signal clarity. Reduce RF HF frequencies.

2.4 inch Outer Diameter Width / 1.4 inch Inner Diameter Width / .5" Thickness Depth

Excellent for taming RFI issues, EMI suppression, Common Mode Chokes, Balun, Unun, Transformers, Impedance Matching, Reducing Signal Loss, Inductors, Power Line Filters, HAM, CB Radio

43 material for general-purpose RF and EMI tasks particularly around HF bands (1–30 MHz).