Comments by "Keri Szafir" (@KeritechElectronics) on "Old pinball machines are amazingly complex" video.

  1. ​ @jongeers1954  loveliness! I have a Selectric III, still gotta fix it.
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  2. That's "Automatic Zone Triggered Electromechanical Computer" for ya! A magnificent and beautiful machine, its control systems and wiring itself clearly having more in common with old electromechanical phone exchange switches than with modern computers. That's just loveliness. 16:05 the schematic uses non-typical symbols for switches and contacts; it's pretty much like the diagrams for graphical programming of PLCs (programmable logic controllers) in industrial automation. Now, try beating Jeri Ellsworth at a pinball game! :)
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