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Help me identify a vintage electric component

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amyk:
https://en.wikipedia.org/wiki/Nylon#History was invented in the 1930s.
https://en.wikipedia.org/wiki/Poly(methyl_methacrylate)#History was also invented in the 1930s.
https://en.wikipedia.org/wiki/Polystyrene#History from the same time period.
https://en.wikipedia.org/wiki/Polyethylene_terephthalate#History was patented in 1941.

The first plastics are from the mid 19th century (celluloid etc.)

ball:
I'm aware, but it wasn't exactly in common use

Cyberdragon:

--- Quote from: ball on March 07, 2021, 06:10:48 am ---I'm aware, but it wasn't exactly in common use

--- End quote ---

It was to an extent, and bakelite has been in wide use since the early 1900s, so has cellulose acetate.

ball:
It clearly wasn't bakelite. Not sure why you would even bring that up

CJay:

--- Quote from: ball on March 07, 2021, 06:41:36 am ---It clearly wasn't bakelite. Not sure why you would even bring that up

--- End quote ---

I think the point was made to show that plastics have been in common use for an *awfully* long time.

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