CRT mold [was: HP2648 heartbreak]

[Bob Shannon]

Maybe the mold simply breaks the bond between the
RTV-like goo and the safety glass.

This is what we see, the tiny gas-filled gap detracting the light.
Probably not the mold itself, just its effects on the goo.

Inserting a tool into the goo also breaks this bond between goo
and glass, so it looks very much the same.

----- Original Message ----- 
From: "Eric F." <elf at ucsd.edu>
To: <cctalk at classiccmp.org>
Sent: Sunday, February 13, 2005 3:46 PM
Subject: Re: CRT mold [was: HP2648 heartbreak]


> Sellam wrote:
>
> > Can you elucidate a bit on how the mold spots developed
> > when you pried up the safety glass with the screw driver?
>
> Essentially, as the tip of the flat blade screwdriver wedged its way in, 
> this separated the adhesive from the two surfaces. Consequently, this 
> _immediately_ caused the "blooming" shape patterns typical of mold growth. 
> (Of course, there was a straight line trail following the path of the 
> screwdriver shaft, but the surrounding areas just "flowered" up into mold 
> shaped circles.)
>
>
> > Are you sure the spots weren't already there?
>
> Yep. The CRT had these mold symptoms around most of the edges, but there 
> were areas where it was unaffected.
>
>
>
> Maybe it is just a coincidence that the prying loose of the adhesive 
> results in a pattern similar in nature to what mold looks like when it 
> develops. Odd.
>
>