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How to deal with the “not-so-mellow yellow” computer

 
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MacOS
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Joined: 19 Jan 2005
Posts: 304
Location: Berlin, Germany

PostPosted: Tue Feb 15, 2011 5:59 am    Post subject: How to deal with the “not-so-mellow yellow” computer Reply with quote

Have a look to this page: www.retr0bright.wikispaces.com/
Some people say chemicals can cause damage on the vintage plastic, please decide yourself:

From the Intro text:

Quote:
Anyone who has dug their old computer or console out of the cupboard or loft for some retro gaming will probably have noticed that it maybe hasn’t worn too well with the test of time. The plastics these machines were made of is called ABS and to make it flame retardant (just in case it catches fire after a marathon session) the plastics manufacturers added chemicals that caused the plastic turn yellow or, even worse, brown over a long period of time.

It was originally thought that the yellowing was permanent and that the only solution to this was to paint the plastic in its original colour and cover the problem up. However, a chance discovery was made in March 2008, by The CBM Museum at Wuppertal in Germany (http://www.forum64.de), that immersing parts in a solution of Hydrogen Peroxide for a few days could partially reverse the process. This was initially taken up by the Amiga community in Germany (http://www.a1k.org) and the idea eventually found its way to the English Amiga Board (http://eab.abime.net), where a madcap collection of chemists, plastics engineers and retro hackers managed to perfect this concept and put it on steroids, with help from other forums.


The RX-8800 experiment
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MacOS aka Oliver


Last edited by MacOS on Wed Mar 09, 2011 2:24 pm; edited 1 time in total
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tano



Joined: 21 Mar 2005
Posts: 51
Location: Mexico

PostPosted: Mon Feb 21, 2011 6:17 am    Post subject: Reply with quote

Thanks for the info, I will try with a macintosh SE:)
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MacOS
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Posts: 304
Location: Berlin, Germany

PostPosted: Mon Feb 21, 2011 12:50 pm    Post subject: Reply with quote

Maybe better to try it first on an old coffe machine or else. Who knows how it works - i did not tried it.
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