Making the Synchrophase in Grebeland (silent, 1925)

“Making the Synchrophase in Grebeland” is a silent 1925 industrial film that documents the intricate process of manufacturing radio components for the Synchrophase radio broadcast receiver. The film takes viewers inside a sprawling factory, showcasing a blend of automated machinery and meticulous hand assembly. It features a variety of production stages—from machining, stamping, and nickel plating of metal parts to the precise assembly of components on bustling conveyor belts. While the film highlights the technical prowess of male workers operating heavy machinery and overseeing the automated processes, it also pays attention to the detailed work of women on the assembly lines. The visual narrative culminates in the final packaging and shipment of the finished radios, offering a rare, detailed glimpse into the early 20th-century industrial labor and technological advancements in radio production.

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