25:1 to 81:1 Baluns/Ununs These baluns and ununs can be used for impedance matching and also as End Fed halfwave antenna matching transformers to 50 or 75 ohm coax cable. Plastic Box for Projects - 3.12 x 2.13 x 1.58 with flangeStore/Antenna Products/CUBE Impedance Transformers (<1:1, 1:1, >1:1)/Enclosure Boxes and HardwareSKU PB-1$5.95Quantity: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 itPlastic Box for Projects - 3.12 x 2.13 x 1.58 with flangeStore/Antenna Products/CUBE Impedance Transformers (<1:1, 1:1, >1:1)/Enclosure Boxes and HardwareProduct DetailsPlastic box for small projects - same as used in our CMNF-500 and MB-1-500 series productsShow More