68kMLA Classic Interface

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Yellowed(brown?) Performa 550
Posted by: Torbar on 2019-04-16 13:54:28
Got this from a buddy of mine,  no hard drive but at least boots to the question mark.  Very yellowed though, might be a good candidate to retrobrite

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Posted by: omidimo on 2019-04-16 17:00:25
Now that is a Pasta! Be very careful with the plastic, it is probably very brittle too.

Alternative [insane] option... spray painted black for Macintosh TV Clonery! 

Posted by: Torbar on 2019-04-17 06:50:32
Now that is a Pasta! Be very careful with the plastic, it is probably very brittle too.

  

Alternative [insane] option... spray painted black for Macintosh TV Clonery! 


Yeah, that was my other thought.  Either make it black, or even some other color(gray?  wrap it in woodgrain vinyl?)

Posted by: Compgeke on 2019-04-17 08:46:24
I'm all for woodgrain chassis and gold buttons. It'd certainly be unique 🙂  .

Posted by: Torbar on 2019-04-17 08:52:16
I have some leftover woodgrain vinyl from a woodgrain pentium build I did a while ago(inspired by LGR's woodgrain 486)

Luckily that stuff is pretty easy to remove, so I might give it a try

Posted by: Paralel on 2019-04-17 14:38:54
The brown proves that once they are yellow from photolytic breakdown of the fire retardants, they subsequently oxidize, with the final color being a medium brown. It makes sense. Yellow chromophores almost universally become brown as a result of subsequent oxidation. That would make heat your worst enemy once they have turned yellow, since that would accelerate the oxidative process. The good thing is that we can be sure the final color is brown, oxidation should reduce the chromophore to its base energy state, where it doesn't respond to any further processes.

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