1984

Between 1984 and 1986, 6x B 84-73 "Family" coaches are delivered after transformation of 6x B 21-73 units.  

1997

In 1997, all units are upgraded for push-pull operations and receive new designation B 84-75.  

Sources: https://wikimonde.com/article/SBB_A_50_85_10-

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Latest update on the 3rd of August 2022 at 23:27

Contributor(s): Tudor C.

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