[GreenKeys] GreenKeys Digest, Vol 82, Issue 27

[Chris Elmquist]

On Tuesday (11/30/2010 at 01:26PM -0600), Jim Haynes wrote:
> On Tue, 30 Nov 2010, Jeffrey Angus wrote:
> 
> > On 11/30/2010 12:15 PM, John Nagle wrote:
> >>      Incidentally, it is possible to return yellowed plastic cases,
> >> as on the Model 33, to their original white.  The yellowing is
> >> from bromine migrating to the surface, and there are
> >> techniques involving hydrogen peroxide and UV light to remove it.
> > Ooooh, I have a lot of Motorola and teleco equipment that has that problem.
> >
> > Jeff-1.0
> > wa6fwi
> 
> There was something posted, IIRC, on the SingingWires telephone collectors
> group on yahoo.  I'll have to see if I can find it.

I think "RetroBright" is all the "rage",

http://retr0bright.wikispaces.com/

but study the process well as I think there are also reports of
the plastic being seriously damaged due to either doing it wrong or
incompatibilities with the chemicals.

I have not done it myself.

Chris N0JCF

-- 
Chris Elmquist