12-15-2021, 02:29 PM
I can explain corrosion in these early Philco coils but it does not work for any coil that has not got a celluloid liner. What happens is the celluloid breaks down over time because of moisture penetration, some of it becomes nitric acid, thus attacks the wire.
The assumption I have is that there no reason not to believe that the cotton covered wire was coated with colloidion a cellulose sealant, that too broke down and ate the wire.
What I want to make clear is it is not the cotton covering in of itself but a treatment given that has failed.
Chas
The assumption I have is that there no reason not to believe that the cotton covered wire was coated with colloidion a cellulose sealant, that too broke down and ate the wire.
What I want to make clear is it is not the cotton covering in of itself but a treatment given that has failed.
Chas
Pliny the younger
“nihil novum nihil varium nihil quod non semel spectasse sufficiat”
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