Though this isn't only phonograph related, I thought I'd bring up this important bit of history on an amazing man.

Several months ago I purchased The movie Edison, the man on DVD from Amazon dot com...

Tonight, I re played the movie, and, enjoyed it very much.
I watched about the inventions especially on the phonograph, and, the electric light.
I watched as they showed how they had trouble on trial day, Sept. 4 with the governors of the two jumbos. They were able to repair the problem quickly enough to light up NY city.
It was equally thrilling to watch on the invention of the phonograph.
This movie was well played starring Spencer Tracey.
It showed his speech at Light's Golden Jubilee transmitted on radio.
It was absolutely inspring.
I ended by playing Keep the home fires burning on Blue Amberol cylinder on my rsusrected Edison Home model B with the cygnet horn, and, H saphire 4 min. reproducer.
Absolutely thrilling!!
I salute you, Mr. Thomas A Edison!
Bill Cahill :D

It was a great movie. I recall I last watched it 30 years ago.

MGM I recall made a companion film: Edison the Boy with Mickey Rooney. It also was very good.