m_‮f

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Cake day: December 11th, 2024

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  • I wonder if it was worth the impressive amount of effort, in retrospect. From https://en.wikipedia.org/wiki/Old_Stockholm_telephone_tower:

    The tower was quickly made obsolete as telephone companies began using underground cables in urban areas. In 1913, underground cabling for telephones was fully completed and the tower no longer served its original purpose

    So 26 years of use for something that seems very expensive (though I didn’t find any numbers for construction costs). I found an HN thread about it too with some good comments as well:

    As for why you didn’t see similar constructions in other cities, this was definitely an unusually large telephone office for the time. In the US, a city exchange of the late 20th century would usually have just hundreds of lines, many of them multi-party. Telephone companies scaled up by building more exchanges, rather than a single very large one. When they got into these kinds of subscriber numbers at an exchange, the F1/F2 cable scheme was in use to avoid this kind of wiring. It does seem to be the case that telephone adoption was unusually rapid in Sweden, I find one (poorly sourced) claim that there were some 4,800 telephone subscribers in Stockholm in 1886 which would very likely make it the most telephone-rich city in the world. The situation of the tower seems to have developed in part because its builder, Allmänna, was consolidating the Stockholm telephone market through acquisitions and made a decision to centralize the many acquired customers onto on exchange.