Yukon

Released by Williams Electronics, Incorporated on August 23, 1971, Yukon is a Canadian West-themed electro-mechanical add-a-ball pinball machine designed by Norm Clark with artwork by Christian Marche. Williams produced 730 units of this single-player machine, designated as model number 403A, selling at a distributor price of $440.00.

The playfield features two flippers, five pop bumpers, and three kick-out holes. A distinctive gameplay element includes three slot machine-style reels positioned near the top of the playfield that award up to three balls for winning combinations. This unique mechanical feature added an element of chance and excitement beyond traditional pinball scoring mechanisms.

Yukon represents an add-a-ball variant in the Williams lineup, with its replay counterpart released as "Klondike." The machine achieved an average fun rating of 7.5/10, reflecting its appeal among collectors and players who appreciate the integration of slot machine mechanics with traditional pinball gameplay in the Canadian West theme.