. I am an old pinball machine repair man so circuits still linger in my head from years back.
I always liked relay circuitry, as you could trace wires and see on schematic what was what. Used to design stuff as kid with old relays and stuff. Kids thought I was weird and nerdy.
Back in the 70s after I got out of college, I went to work for a telephone company. All electromechanical relays, stepper switches. Copper slugs and sleeves to make relays slow pickup or slow release. Supervisors were happy with me as I often was sent to fix weird PBX problems because I could visualize what was happening or should happen. Then quit to persue my engineering degree and got involved with ICs and processors and though I could design etc, it was never the same as good old electromechanical stuff, where you could force a relay to operate to see if something would/not happen.
But this is digressing from the topic at hand.
