Bell System/WECo - General Publications

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WE Telephone Communication Systems

WE Telephone Communication Systems ( 8 Files )

V1: Early Systems and Station Equipment,  V2: Crossbar

Documents

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The Hinsdale Challenge 1988 Executive Summary The Hinsdale Challenge 1988 Executive Summary

Date added: 04/15/2014
Date modified: 04/15/2014
Filesize: 868.64 kB
Downloads: 2792

Contributed by John Novack.

Ameritech - The Hinsdale CO Fire Report And Conference Notes - 1989 Ameritech - The Hinsdale CO Fire Report And Conference Notes - 1989

Date added: 03/07/2014
Date modified: 03/07/2014
Filesize: 8.55 MB
Downloads: 602

280 pages.  This document was part of a two day seminar by Ameritec on the Central Office fire in Hinsdale IL. It was scanned as presented in the 3 ring notebook.

Includes  "The Hinsdale Challenge" - notes from a conference held April 10-11, 1989; and "The Hinsdale CO Fire - Final Report" Executive Summary, March 1989 (starts on page 234, tab 13 for reference in the conference notes). Contributed by John Novack.

ID Codes for No. 4 and Crossbar Tandem Offices - Jan61 ocr r ID Codes for No. 4 and Crossbar Tandem Offices - Jan61 ocr r

Date added: 08/31/2013
Date modified: 08/31/2013
Filesize: 629.56 kB
Downloads: 934

List of all No. 4 and Toll Xbar Tandems in the US, 1961. With ID codes used by the announcements. Contributed by Clint Gilliland.

CO Prefixes Panel and Xbar Dial Buildings - Jul51 CO Prefixes Panel and Xbar Dial Buildings - Jul51

Date added: 08/31/2013
Date modified: 08/31/2013
Filesize: 615.53 kB
Downloads: 1071

San Francisco, East Bay and Coast Divisions.  Pacific Telephone.  Contributed by Clint Gilliland.

Wire Spring Relays U UA Y X75375 Jul56 Wire Spring Relays U UA Y X75375 Jul56

Date added: 07/04/2013
Date modified: 07/04/2013
Filesize: 5.34 MB
Downloads: 800

Contributed by Steve Flocke.  Scanning and OCR by John Novack.

SXS System Relays 22x 24x 25x X75514 Jul54 SXS System Relays 22x 24x 25x X75514 Jul54

Date added: 07/04/2013
Date modified: 07/04/2013
Filesize: 2.43 MB
Downloads: 970

Contributed by Steve Flocke.  Scanning and OCR by John Novack.

Sxs Bc Sxs Bc

Date added: 07/25/2010
Date modified: 10/15/2010
Filesize: 4.01 MB
Downloads: 1258

Boston1924 Bc Boston1924 Bc

Date added: 07/25/2010
Date modified: 10/15/2010
Filesize: 2.59 MB
Downloads: 1256

1975_Bell System Switching Timeline - History 1878-1975 1975_Bell System Switching Timeline - History 1878-1975

Date added: 11/12/2009
Date modified: 11/12/2009
Filesize: 442.92 kB
Downloads: 1117

Time Line of Bell System Switching from a Bell System Training Manual

Evolution of Switching in the Bell System Evolution of Switching in the Bell System

Date added: 10/28/2009
Date modified: 08/31/2013
Filesize: 4.53 MB
Downloads: 1182

From A History of Engineering and Science in the Bell System: Switching Technology. Step by Step Improvements. WE installed AE switches until production started in 1926. SxS.

Recent Contributors

Thanks for new documents from David Gruger, Jeff Lamb, Walt Aydelotte, Dennis Hock, Steve Flocke, Paul Wills, Sam Etler, Fred Haynes, John Novack, Clint Gilliland, Steve Cichorsky and Karl Brose.

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