[ahazred8ta]

Jamie O'Shea's Immaculate Telegraphy video series (2009) - "It's the ultimate salvagepunk experiment" -- https://www.tumblr.com/immaculatetelegraphy -- https://www.google.com/search?q=immaculate+telegraphy

But also Lewis Dartnell (The Knowledge: How to Rebuild our World from Scratch) https://www.wired.com/story/how-to-make-a-telegraph-from-scr... -- https://en.m.wikipedia.org/wiki/The_Knowledge:_How_to_Rebuil... -- "a great read, even if civilization does not collapse"