This is so cool, especially because the Tube map was inspired by a circuit diagram in the first place!
https://tfl.gov.uk/corporate/about-tfl/culture-and-heritage/...
https://tfl.gov.uk/corporate/about-tfl/culture-and-heritage/...
from TFA
Please also note when they talk about Beck's inspiration they say "circuit diagram" and not "circuit board", like the paragraph you quoted.