2:1 Baluns/Ununs +2FT240-43, ID=1.4", RFI Range 25-300 MHz, Bulk Pack of 10Store/Ferrite Core Products/Mix 43/Ring - Mix 43 RFI Range: 25-300 MHzSKU F240-43-10$79.9510 $9.00Quantity:1 Add More Add to CartGo to CheckoutSave this product for later Favorite Favorited View FavoritesCustomer reviewsNo reviews yet. Only signed-in customers who bought this product can leave reviews. To leave a review, sign inShare this product with your friendsShareSharePin itFT240-43, ID=1.4", RFI Range 25-300 MHz, Bulk Pack of 10Store/Ferrite Core Products/Mix 43/Ring - Mix 43 RFI Range: 25-300 MHzProduct DetailsMPN: F240-43RFI Range (MHz): 20-200 MhzID-B (in/mm): 1.4/35.6OD-A (in/mm): 2.4/61Height-C (in/mm): .5/12.7Weight (oz/gm): 106 gramsInitial permeability: 850A(L): 1240Very useful for RFI suppression, broadband impedance transformer, Bulk Pack of 10Show More2:1 (100:50) Baluns are useful between 50 ohm coax and 100 ohm balanced lines for loops, cubical quads, log periodics and other antennas where the impedance at the end of the feedline is 100 ohms (1/2 wavelength feedline).