Weight, bells
and voltage.
Pinball was never one invention. It became itself through decades of mechanical scoring, flippers, artwork, relays, electronics and competitive one-upmanship.
1930s–1950s / the machine takes shape
Coin-operated pin games grew into upright machines with backglasses, scoring mechanisms and, after 1947, player-controlled flippers.
1960s–1970s / electromechanical peak
Relays, bells, score reels and increasingly theatrical playfields defined the classic manufacturer era.
Late 1970s–1990s / solid state
Digital scoring, speech, ramps, multiball and deeper rules changed what a pinball machine could be while familiar makers consolidated or disappeared.
Today / continuation
Modern production, restoration, tournaments and home collections keep both new machines and old marks in circulation.