.
Now for the driven element.
Remember this one is 3/8 in diameter.
What I did was get some old tubes the end mill bits come in. See you local machine shop. You want the caps also.
Take the element and mark center. 1/4 inch on either side of center wrap electrical tape around it a few turns. Take the tube and cut the bottom off. Mark center of tube. If you have enough tape around element, the tube should slide over element and fit very snug.
The hole in the boom for the driven element should be just over sized from 3/8. Use a reamer to element with insulated tube to fit. It will be tight.
Once element is in and centered cut the red cap from tube so you have 2 pieces. Slide these over element to fit snug against boom.
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