Elements for Cushcraft 2m Yagi
I'm looking for some good suggestions on how to replace some broken elements
on my Cushcraft A148-10 2m Yagi. They sell replacement parts, but I'm told that its cheaper to just use some welding rods as they are just about the same size. I noticed that on the Cushcraft antenna the elements appear to be brazed(?) at the center into an encapsulation. At the center of the encapsulatoin is a hole drilled for the screw to go down through the element and into the boom. How do would I recreate this if I were to use homebrew elements. Jason KB5URQ |
I'm looking for some good suggestions on how to replace some broken elements on my Cushcraft A148-10 2m Yagi. They sell replacement parts, but I'm told that its cheaper to just use some welding rods as they are just about the same size. I noticed that on the Cushcraft antenna the elements appear to be brazed(?) at the center into an encapsulation. At the center of the encapsulatoin is a hole drilled for the screw to go down through the element and into the boom. How do would I recreate this if I were to use homebrew elements. ========================= Not owning/knowing the above type of antenna ,I might not be eligible to comment. However from your description re welding rods and its centre being brazed into an encapsulation , it appears to me that a welding rod is too thin to drill a hole through ,but by sliding over a piece of (stainless ?) steel tubing ,with inner diameter slightly larger than the diameter of the welding rod , and brazing this in the middle of the welding rod material on both sides (encapsulation) you get an overall larger diameter through which a hole can be drilled. Frank GM0CSZ / KN6WH |
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