Look at what I just pulled out of the attic, plugged in, turned on, tuned into the local AM station - bright and clear after 76 years!
https://www.radiomuseum.org/r/rca_75x11_75_x_11_chrc_1050.html
Funniest thing is how we expect things to start immediately when turned on. Tubes, man. They gotta warm up.
I'm freaking enchanted.