The antenna experimeter's favourite. Pre-drilled for a SO-259 socket. One or two 30-36mm toroids can also be fitted without problems. It's very easy to swap baluns on this insulator for quick comparisons. If Teflon Litze is used,these baluns will be suitably weatherproof. Dimensions: 160 x 60 mm.
material: uv-resistant Plexiglasź GS, thickness 5mm