DIYbanter - View Single Post

Fox's Mercantile

On 8/27/19 4:19 PM, wrote:
"Waldo Semon and the B.F. Goodrich Company developed a method
in 1926 to plasticize PVC by blending it with various additives.
The result was a more flexible and more easily processed material
that soon achieved widespread commercial use."

PVC insulation on wires wasn't used until the '40s and was mostly
used by the Government for WWII production.
And even at that, there was plenty of wire that was rubber,
although it was covered in braided cotton.

The standard wire in the 20's was either rubber covered, bare or
"push back" which was solid copper with a spun cotton or silk
covering that could be Just pushed back" so no fuss to expose
the ends of the wires.

So it could even be original wiring, though that's not likely.

Absolutely NOT likely at all in the '20s.

--
"I am a river to my people."
Jeff-1.0
WA6FWi
http:foxsmercantile.com