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4 electromechanical pinball repairs in 12 minutes, plus showing normal machine startup
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How The Amazing Gottlieb Player Unit Works - Spirit of 76 Pinball Machine Repair - Schematic Theory
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Discover the HIDDEN Tone of 夜空下的旋律 Melody Under the Night Sky!
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Why Does Pinball Score Motor Continually Run It Won't Stop!
50:09
Old pinball machines are amazingly complex
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What's inside a pinball machine? Part 3--How does it all work?
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Full video: Genius girl repairs and restores machines.
15:43