In a message dated 99-10-03 17:30:31 EDT, W4EF@pacbell.net writes:
> I am in the process of preparing a used KLM KT34XA for
> re-installation on the tower. While I was cleaning-up
> and inspecting the elements, I noticed that it was
> difficult to get the shorting straps in the linear loading
> sections to fit tight around the capacitor tubes (I think
> these are the so called type "C" straps), especially when
> they are coated with no-alox which is somewhat slick.
> This loose fit concerned me as it was my understanding that
> no-alox needs to be under pressure to work reasonably well.
> As a result, I picked up some 10 mil brass shim stock at the
> local hardware and shimmed a couple of the strap terminations
> so that they are now snug around the capacitor tubes.
> Unfortunately, this is a rather tedious process.
Big UGH to that. Then you've got dissimilar metals to deal with too.
>
> Anybody out there know of a better solution, or am I overkilling
> this thing? I have 5 more elements to do, so any labor saving hints
> would be appreciated.
The looseness of these straps is well documented. After you've got it
reassembled and working to your satisfaction, I would suggest using a TEK
screw to pin everything together. A TEK screw is a chisel-point self-tapping
screw that will go into aluminum in a couple of seconds. I prefer the
Phillips head variety as they are easier to drive with my cordless drill.
They don't have to be very long. This provides a good redundant electrical
connection as well as mechanical connection.
Cheers, Steve K7LXC
Tower Tech
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