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7A2 telephone exchange schematic diagram

Inventory number: T99 1/14/1
Location: Hall 1

In Budapest, the successors of the 7A1 exchanges have been the upgraded 7A2 telephone exchanges, which presented smaller footprints and simpler maintenance. The first exchange was commissioned 1939 in the <<822>>Erzsébet exchange<>. In the post-war time the exchanges destroyed in World War II were replaced by 7A2 exchanges.

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  • 7A2 telephone exchange schematic diagram

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