WECo Manual Switching - TCI Library

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Folder WECo Manual Switching

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Folder 3C-and-3CL-Switchboard

Folder Number 5 Toll Testboard

Documents

pdf CO Equipment Training, Lesson 6, PBX Systems Popular

Published on 23 January 2022 Modified on 23 January 2022 By Paul F 395 downloads

Download (pdf, 5.26 MB)

CO_Equip_Lesson_6_PBX_tci_bm.pdf

1. History and Development
2. General Description of PBXs
506, 551, 552A, 605A, 606A, 701A, 702A, 711A, 740, 750A, 755A, Braille PBX

Contributed by John Novack

pdf WE Idle Trunk And Position Indicating Equipments Aug28 Popular

Published on 13 August 2013 Modified on 23 January 2022 By Paul F 613 downloads

Download (pdf, 869 KB)

Idle_Trunk_and_Position_Indicating_Equipments_Apr29_tci.pdf

WE Idle Trunk And Position Indicating Equipments Aug28

August 1928, reprinted April 1929. Contributed by John Novack.

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