2:1 Baluns/Ununs FT114-77, ID=.748", RFI Range .1-10 MHzStore/Ferrite Core Products/Mix 77/Ring - Mix 77 RFI Range: 100 Khz-10 MHzSKU F114-77$3.75Bulk pricing available for quantities of 10 units or moreQuantity:1 Add More Add to CartGo to CheckoutBuy more, save moreQuantityPrice per itemDiscount10 items$3.2513% off100 items$2.8524% 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 itFT114-77, ID=.748", RFI Range .1-10 MHzStore/Ferrite Core Products/Mix 77/Ring - Mix 77 RFI Range: 100 Khz-10 MHzProduct DetailsMPN: F114-77RFI Range (MHz): 100 KHz-10 MhzID-B (in/mm): .748/19OD-A (in/mm): 1.142/29Height-C (in/mm): .295/7.5Weight (oz/gm): 33 gramsInitial permeability: 2000A(L): 1365Case/Box lot size: 689Ferrite Ring Toroid Core, ID = ..748"/23mm, Mix 77 Excellent for switching power supply filters for AC input or DC outputShow 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).