[78-L] Tinfoil (was: Sound for early silent films Was: whatawhiner!)

[martha]

  Telegraph, telephone, and electric lighting wires all used soldered 
connections in the 19th Century.  There are also patents for electric 
soldering irons from the 1880s, if not earlier.


----- Original Message ----- 
From: "Steven C. Barr" <stevenc at interlinks.net>

>>
> Quite close...except that neither the "soldering iron" (in ANY form) nor
> the electronic devices requiring soldered connections of wires had at
> that point been invented...?! "Soldering" was in those early days a
> convenient and inexpensive method to fasten two metal objects
> together...it wasn't until the end of WWI that those "objects" were
> wires...?!