[Boatanchors] [Hallicrafters] got the HT-20

[Rob Atkinson]

Hi Bob,

I'm curious if the warping happened decades after manufacture or
became obvious not very long into the lifetime of the rig, like a few
years after manufacture.   No reason for wanting to know other than
interest in the history of the gear.

Rob
K5UJ

On Sat, Jun 19, 2010 at 8:35 PM, Robert Nickels <ranickel at comcast.net> wrote:
> On 6/19/2010 12:53 PM, Brian Harris wrote:
>>   I wonder if the much touted SX-88 has the same cheesy bezel.
>
> Some did, but not all.  I don't think any of us ever conclusively traced
> the problem to a specific group of serial numbers, although if anyone
> would know, it would be Hank Arney who (while the rest of us were
> whining!) took the initiative to work with a CNC machine shop to have
> new ones manufactured, and they turned out great.   The bezel warpage
> was a result of insufficient stress relief in the original castings -
> over time those stresses simply twisted the bezel up like a pretzel.
> You can't get much "earlier" than my SX-88 as it was one of several
> hand-built prototypes and it had the warped bezel problem, but I've know
> other early s/n owners say theirs are fine.    Evidently the supplier
> fixed the process or Hallicrafters found a new one, as the majority of
> these bezels (including the one on my HT-20) seem to be OK.
>
> A ham buddy from southern Illinois told me how one guy he knew made a
> wooden pattern and sand-cast his own SX-88 replacement bezel out of
> melted-down aluminum scraps.   I recommend the CNC approach ;-)
>
> 73, Bob W9RAN
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