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Discolouring of a GPO 746 phone?
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19th May 2019, 4:13 pm
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Graham G3ZVT
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Join Date: May 2010
Location: Greater Manchester, UK.
Posts: 18,675
Re: Discolouring of a GPO 746 phone?
I'm impressed by that result!
But also confused.
Is the glass tank a means of keeping the solution warm for free, or does UV help the bleaching process?
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