2:1 Baluns/Ununs FT240-52, ID=1.4", RFI Range 200-1000 MHzStore/Ferrite Core Products/All Ferrite Ring Toroid Cores/Mix 52 - RFI range 200-1000 MHzSKU F240-52-1$13.95Bulk pricing available for quantities of 10 units or moreQuantity:1 Add More Add to CartGo to CheckoutBuy more, save moreQuantityPrice per itemDiscount10 items$12.5010% off100 items$11.9514% offSave 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 itFT240-52, ID=1.4", RFI Range 200-1000 MHzStore/Ferrite Core Products/All Ferrite Ring Toroid Cores/Mix 52 - RFI range 200-1000 MHzProduct DetailsRFI Range (MHz): 200-1000 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: 250A(L): 325Inductor Range (MHz): < 30Transformer Range (MHz): 1-60Case/Box lot size: 100for transmission line transformers, RFI suppression - Jerry Sevick book most used mixShow 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).