A drawing of the first electrical transformer, built by Michael Faraday in the 1830s (via Wikipedia user DrJunge)
Spark Tester
Spark tester machine on a wire assembly line – electricity is run through the hanging ball chain (via How It’s Made, season 7, episode 3).
Electric Beethoven
“I am electrical by nature. Music is the electric soil in which the spirit lives, thinks, and invents.”
– Ludwig van Beethoven, as quoted from Jonathan Cott’s introduction to his book Stockhausen