bellsystem

95 photos tagged bellsystem, from 2 members of Flickr Commons.

When were these photos taken?

1
1973

 

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1% of these photos are geotagged.

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The last upload was 28 April.

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26_0026505 Rohr Collection Image

from SDASM Archives

  • Chuck Walla said:
    Looks like a headset jack under the console writing surface.

26_0015057 Rohr Collection Image

from SDASM Archives

  • Chuck Walla said:
    If she were really "on the phone," one of the line buttons would be depressed and lit. Nice portrait anyhow.

26_0043237 Rohr Collection Image

from SDASM Archives

  • Chuck Walla said:
    These are apparently Rohr's effort to make horn antennas for the Bell System. These were an artifact of five nines reliability. Most of the 3500-4000 MHz links these carried have been transitioned to (reliable) fiber.

    In a WalMart culture, where everyone is trying to get something for nothing, there's no room for five nines reliability.

    Suggested reading: Sagan, Scott, The limits of Safety: Organizations, Accidents, and Nuclear Weapons

    Installed horn antennas: