Comments by "Dr Gamma D" (@DrDeuteron) on "Old pinball machines are amazingly complex" video.

  1. I flunked EE at "Design a circuit for a 3 floor elevator button"
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  2. Ferromagnetic > Silicon
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  3. It was in the diagram, a relay sends current to a small C4 charge.
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  4. Imma stick to dishwasher pellets from now on.
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