Quote:
Originally Posted by merlinmaxwell
Plastic wine corks make very good aerial insulators simply melt a couple of holes with a soldering iron. No need to do the 'if it fails it will still hold up' thing that ceramic ones had, those corks are very strong.
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I've used four plastic champagne-corks with two lengths of 3/4-inch PVC overflow-pipe and two 0BA threaded brass rods as feedthroughs for bringing 600-ohm antenna ladder-feeders through a wooden window frame.