How do you clean telephones.
I've just dug my collection of old telephones out of the attic. Mainly 700 and trimphone types including loop disconnect push button variants.
I was wondering how to clean them. In particular an ivory coloured example dated 1972 has turned yellow. This is NOT a result of exposure to tobacco smoke or light. It's been kept in the dark for 20 years or more. I tried Brasso to no avail, so settled for applying silicone floor polish. This imparts a nice shine, but the phone is still yellow.
When I worked for the PO we used Paste Cleaning No. ?? I don't think this was particularly abrasive though. I'm beginning to think the yellowing is due to degradation of the plastic and has some depth to it.
Graham.
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