Golden Gate 75

Golden Gate 75 is a rare and intriguing electro-mechanical bingo machine (model 1017) from Bally Manufacturing Corporation, designed by Don Hooker and released to production around April 1974. Bally's own factory documentation is contradictory: one version of its "Numerical List of Machines" page 18 lists Model 1017 as "Golden Gate 75," while a second, more complete version lists the same model as "Mystic Gate." The Mystic Gate schematic itself references a "Golden Gate" switch, believed to be the game's unique Rebound Unit, deepening the mystery.

Gameplay on Model 1017 follows the classic electro-mechanical bingo format, relying on mechanical relays and switches rather than flippers to control scoring. The exact rules aren't documented here, but Bally bingo machines of this era typically challenged players to align patterns of lit numbers for payouts.

The "Golden Gate 75" name may never have actually reached production — it's possible the name was changed to "Mystic Gate" before or during manufacturing, perhaps to avoid confusion with Bally's earlier 1962 bingo game "Golden Gate" (model 698). No confirmed example, advertisement, or documentation for a machine actually badged "Golden Gate 75" has yet surfaced, making this one of the more enigmatic entries tied to designer Don Hooker's prolific career at Bally.