[Boatanchors] HQ-180 dial window discoloration

[RAY FRIESS]

Glenn Zook has done a remarkable job of manufacturing replacement dials and panels and things like that for some of
the old boat anchors.   Maybe this could be a new project for him, making replacement dial windows for the hammarlund HQ series.


> From: kzerocx at rap.midco.net
> To: boatanchors at mailman.qth.net
> Date: Tue, 20 Jan 2015 07:23:18 -0700
> Subject: [Boatanchors] HQ-180 dial window discoloration
> 
> I have an HQ-180 in quite good condition.  The, originally clear, dial windows have turned a dark amber.  
> 
> If the calibration set control is rotated, it is easy to see a clear line of demarcation between the amber and clear celluloid or plastic.  The discoloration is in the exact shape of the trapezoidal cutout for the dial windows.
> 
> I have tried a cotton swab, moistened with Windex and another moistened with isopropyl alcohol, to remove the discoloration.  Neither swab picked up any amber color.
> 
> This leads me to believe that the discoloration is due to exposure to ultraviolet light.  The receiver may have been in a location where it was exposed to direct sunlight for a considerable amount of time.  If my assumption is correct, there is nothing that can be done to restore the clarity of the window material.  The use of any abrasive material would assume the damage was restricted to surface level and would result in the removal of the black index line.
> 
> I do have another HQ-180 with some cabinet damage.  However, its dial windows are still clear or colorless.
> 
> Does anyone on the list have experience with removal of the front panel on an HQ-180?  I’m hoping that any attempt to swap dial windows between the two receivers will not turn into the proverbial can of worms.  Sometimes, doing something like this just isn’t worth the time taken.
> 
> Thanks in advance for any advice!
> 
> Gary, KzeroCX
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