This collection contains books published by the Bell System and its subsidiaries.
Blueprints, documentation and plans related to the US Telephone System (Ma Bell, Bell Telephone).
Miscellaneous documents related to the Bell System.
Magazines from various factions and departments of the Bell Telephone System.
29
29
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by
Bell Telephone Laboratories, Inc.
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Circuit Descriptions -- an adjunct to System Functional Drawings 10-01 From the Connections Museum, Seattle WA
Topics: telephone switching, 5xb, number 5 crossbar, bell system, connections museum
591
591
Mar 1, 1954
03/54
by
American Telephone & Telegraph Co.
texts
eye 591
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Volume II of a 1954 training manual for No. 1 Crossbar switchmen. This volume contains diagrams and illustrations that are meant to accompany the written text in Volume 1, which can be found here . From the library of the Connections Museum, Seattle.
Topics: bell system, crossbar switching, bell system training, no. 1 crossbar, 1xb
126
126
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by
Western Electric Co.
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eye 126
favorite 1
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A Western Electric brochure touting the benefits of the 5ETS add-on for the No. 5 Crossbar switching system.
Topics: bell system, #5 crossbar, telephony, switching
95
95
Mar 1, 1955
03/55
by
Bell Telephone Laboratories, Incorporated
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eye 95
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A schoolbook used to teach craftspeople how the No. 5 Crossbar works. From the Connections Museum, Seattle
Topics: 5xb, crossbar, telephone switch, at&t, bell system, bell labs, western electric
The Bell System Practices were a set of documents produced by the American Telephone and Telegraph Company to instruct employees on the proper use and maintenance of all kinds of telephone equipment. As these materials span decades of the history of (what was at the time) the world's largest corporation, the quality varies widely. Some documents are carefully phototypeset originals, some are enlargements from microfilm, and still others are third-generation photocopies of typewritten originals.
Topics: Bell System, telephone, ATT, American Telegraph and Telephone, phone equipment, manuals
269
269
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by
Western Electric Co.
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eye 269
favorite 1
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Telephone Systems Training COURSE: CENTRAL OFFICE EQUIPMENT Lesson No. 58 Issued January 1951 Reissued July 1953
Topics: bell system, #5 crossbar, telephony, switching
269
269
Dec 1, 1953
12/53
by
Western Electric Co.
texts
eye 269
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Bell System training document giving a general overview of the Panel type telephone switch. Part of a course in central office equipment. Cover text reads: PANEL DIAL TELEPHONE SYSTEM Telephone Systems Training COURSE: CENTRAL OFFICE EQUIPMENT LESSON NO. 4 Issued, March 1937 Revised, January 1948 Reissued, December 1953 Western Electric Company, Inc. Hawthorne Works Personnel Service Branch Training Department
Topics: panel switch, bell system, telephony, switching
91
91
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by
Bell Telephone Laboratories, Incorporated
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eye 91
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A 5XB Schoolbook, containing Operational Sketches From the Connections Museum, Seattle
Topics: bell system, 5xb, 5 crossbar, telephone switch, western electric, at&t
193
193
Oct 1, 1938
10/38
by
C.A. Collins, C.H. McCandless
texts
eye 193
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Bell System training document with illustrations of the physical frames of the No. 1 Crossbar telephone switch. Part of a larger volume containing photographs, detailed descriptions, and schematic drawings.
Topics: crossbar, bell system, telephony, switching
147
147
1922
1922
by
United States. Army. Signal Corps
texts
eye 147
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Wire Communication Pamphlet No. 2: Monocord Switchboards of Units Type EE-2 and Type EE-2A and Monocord Switchboard Operator's Set Type EE-64 1921-08-31 Wire Communication Pamphlet No. 7: Signal Corps Universal Test Set, Type EE-65 1921-11-30 Wire Communication Pamphlet No. 11: Elements of the Automatic Telephone System 1922-02
Topics: United States. Army, United States. -- Army -- Handbooks, Manuals, etc., Military telephone --...
2,578
2.6K
Apr 1, 1960
04/60
by
Bell Telephone Laboratories, Incorporated
texts
eye 2,578
favorite 4
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The Electronic Switching System. Trial Installation, Morris, Illinois: General Description. Private Edition. Published April 1960 by Bell Telephone Laboratories, Incorporated in Whippany, New Jersey, USA. Copy #294. "The ESS can diagnose most of its own troubles and can identify the sources of trouble. But it still needs a maintenance staff well trained in the basic principles of the system. This book constitutes part of the educational material required for training such a staff; it is...
Topics: telephone, textbook, bell system, bell telephone laboratories
190
190
1939
1939
by
New York Telephone Company
texts
eye 190
favorite 0
comment 0
Long Island Guide Avalon Office File Plant Training Practices Crossbar System Prepared by Long Island Division New York Telephone Company Copyright 1939 by American Telephone & Telegraph Company Printed in U.S.A.
Topics: bell system, at&t, switching, crossbar, 1xb, telephone switching
160
160
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by
Western Electric Co., Inc.
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eye 160
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Pamphlet regarding Western Electric's Hawthorne Club for employees.
Topics: western electric, bell system, telephony
590
590
texts
eye 590
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The annual financial reports for the Cincinnati and Suburban Bell Telephone Company from 1955 through 1968, and from 1970 through 1976.
Topics: cincinnati and suburban bell, cincinnati suburban bell, cincinnati bell, corporate, annual report,...
236
236
1982
1982
by
Western Electric Co., Inc.
texts
eye 236
favorite 1
comment 0
WE (Western Electric) magazine
Topics: western electric, bell system, telephony, 1980s
70
70
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-
by
Bell Telephone Laboratories Incorporated
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eye 70
favorite 0
comment 0
61
61
1949
1949
by
Bell Telephone Laboratories
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eye 61
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comment 0
A bound compilation of several Bell Labs Record articles pertaining to the No. 5 Crossbar system.
Topics: 5xb, crossbar, telephone switch, connections musuem
450
450
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by
Western Electric Co., Inc.
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eye 450
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comment 0
Western Electric pamphlet describing their relationship to the Bell System
Topics: western electric, bell system, telephony
497
497
texts
eye 497
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Schematic diagram for the connector circuit in the No. 5 Crossbar MTC From the Connections Museum, Seattle
Topics: 5xb, 5 crossbar, trouble recorder
311
311
1953
1953
by
Smith, K. D., Bell Telephone Laboratories
texts
eye 311
favorite 1
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Relation of design variables to equivalent circuit parameters for the M1752 development transistor.
Topic: transistor parameter design equivalent circuit
247
247
Jan 29, 1954
01/54
by
Bell Telephone Laboratories, inc.
texts
eye 247
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This is is one of a series of Engineering Reference Data Bulletins containing information on tools and gauges designed by the Bell Telephone Laboratories, for other than Military Applications, and manufactured by the Western Electric Company or by other suppliers in accordance with specifications prepared by the Laboratories. It is intended primarily for use by engineers of the Laboratories, and contains information on apparatus which may be rated AT&T Co Standard or A&M Only; codes...
Topics: bell system, bell labs, tools, telephone, telephone switching
51
51
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by
Bell Telephone Laboratories Incorporated
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eye 51
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72
72
1939
1939
by
Bell Telephone Laboratories
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eye 72
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A compendium of Bell System Technical Journal articles concerning the No. 1 Crossbar.
Topics: 1xb, crossbar switch, bell system, connections museum, telephone switch
114
114
1921
1921
by
Western Electric Company
texts
eye 114
favorite 1
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Machine Switching Equipment Notes Volume II Reprints of papers used for training purposes by the Engineering Department of the Western Electric Company for the term 1920-21 From the collection of the Connections Museum, Seattle WA
Topics: western electric, machine switching, panel switch, bell system, at&t
324
324
Dec 1, 1920
12/20
by
American Telephone & Telegraph Co.
texts
eye 324
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Bulletin No. 17 (Preliminary) December 1920 American Telephone and Telegraph Company Department of Development and Research Maintenance Instructions Panel Type Machine Switching System Douglas and Tyler Offices, Omaha
Topics: panel system, bell system, at&t, first panel office, electromechanical switching
65
65
Mar 9, 1966
03/66
by
Bell Telephone Laboratories Incorporated
texts
eye 65
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This circuit provides for (a) intercommunication between maintenance men in the switch room, (b) for clearing permanent signals due to the calling party holding the connector and (c) for one-way transmission tests of connectors.
Topics: step, test, trunk
66
66
May 1, 1972
05/72
by
Bell Telephone Laboratories, Incorporated
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eye 66
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This specification covers the cording for equipped A-type handset mountings, B-type hand telephone sets and 102, 103, 202, 203, 204, 205, 208, and 215-types of hand telephone sets.
Topics: bsrs, D-353.251, desk set
280
280
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by
American Telephone & Telegraph Co.
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eye 280
favorite 2
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Original AT&T internal educational publication on the crossbar tandem (XBT) switching system. This switch was a "tandem" switch, and was used to route calls between local central offices only. This type of switch did not have any subscriber lines provisioned to it. The intended audience for this document was switchmen, and the material was most likely delivered in a classroom environment. From the library of the Connections Museum, Seattle
Topics: bell system, at&t, crossbar tandem, crossbar switch, telephony, at&t, crossbar tandem,...
40
40
Feb 1, 1918
02/18
by
Pacific Telephone & Telegraph Company
texts
eye 40
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comment 0
183
183
Sep 6, 1939
09/39
by
Bell Telephone Laboratories, Inc.
texts
eye 183
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X-62724 - Standard Drafting Practices for the Preparation of Circuit Drawings
Topics: western electric, bell system, telephony, drafting
2
2.0
texts
eye 2
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A book kept at the 1XB Originating Trouble Indicator to assist in diagnosing trouble indications. From the Connections Museum, Seattle
Topics: telephone switching, connections museum, txb
75
75
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by
Bell Telephone Laboratories Incorporated
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eye 75
favorite 0
comment 0
238
238
Oct 1, 1938
10/38
by
C.A. Collins, C.H. McCandless
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eye 238
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Bell System training document giving a general overview of the No. 1 Crossbar telephone switch. Part of a larger volume containing photographs, detailed descriptions, and schematic drawings.
Topics: crossbar, bell system, telephony, switching
56
56
1940
1940
by
Western Electric Co.
texts
eye 56
favorite 0
comment 0
Topics: panel switch, circuit description, bell system, telephone switching, AT&T
104
104
1921
1921
by
Western Electric Co.
texts
eye 104
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comment 0
Topics: panel switch, circuit description, bell system, telephone switching, AT&T
296
296
1926
1926
by
R.C. Glasier
texts
eye 296
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Published in 1926 by Western Electric for AT&T, this handbook covers sound transmission, switching (panel, and step by step), telegraph, and toll. From the archives of the Museum of Communications, in Seattle.
Topics: bell system, telephony, panel switch, step by step switch, step switch, western electric,...
57
57
Oct 2, 1974
10/74
by
Bell Telephone Laboratories Incorporated
texts
eye 57
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comment 0
48
48
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by
Bell Telephone Laboratories Incorporated
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eye 48
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comment 0
192
192
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by
Western Electric Co., Inc.
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eye 192
favorite 6
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Western Electric handbook given to new employees at Hawthorne Works
Topics: western electric, bell system, telephony
114
114
Oct 1, 1927
10/27
by
Pacific Telephone & Telegraph Co.
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eye 114
favorite 1
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Specification E-3390 Issue No. 1 October 1, 1927 The Pacific Telephone and Telegraph Company Northern California and Nevada Engineering Department San Francisco Specification of Questions and Answers Regarding the Panel Dial System for The Pacific Telephone and Telegraph Company San Francisco and East Bay Area From the library of the Museum of Communications, Seattle
Topics: panel switch, dial telephone, machine switching, PT&T, pacific telephone and telegraph
2
2.0
texts
eye 2
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A book kept at the Terminating Trouble Indicator to assist in analyzing trouble reports. From the Connections Museum, Seattle
Topics: telephone switching, connections museum, 1xb, crossbar
183
183
1921
1921
by
Western Electric Company
texts
eye 183
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Machine Switching Equipment Notes Volume I Reprints of papers used for training purposes by the Engineering Department of the Western Electric Company for the term 1920-21 Sketches, illustrations and drawings are located in Volume II From the collection of the Connections Museum, Seattle WA
Topics: western electric, machine switching, panel switch, bell system, at&t
565
565
Dec 17, 1975
12/75
by
Bell Telephone Laboratories Incorporated
texts
eye 565
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93
93
Mar 1, 1927
03/27
by
Carson, John R.; Bell Telephone Laboratories
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eye 93
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BSTJ: Electromagnetic Theory and the Foundations of Electric Circuit Theory
Topic: electromagnetic circuit maxwell lorentz
54
54
1960
1960
by
United States Secret Service
texts
eye 54
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"Know Your Money," a booklet published by the US Secret Service and distributed to Western Electric employees via their "Booklet Rack Service for Employees" system. Includes an brief overview of the history of currency and tips on spotting fake bills that are probably not sufficient against 21st century counterfeiting methods.
Topics: counterfeit, counterfeiting, 1960s, western electric, secret service, currency
121
121
Oct 1, 1932
10/32
by
Davisson, C. J., Bell Telephone Laboratories
texts
eye 121
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Tracing the growth of ideas regarding the electron.
Topic: electron wave particle charge
97
97
Feb 6, 1981
02/81
by
Bell Telephone Laboratories, Incorporated
texts
eye 97
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A bootstrap program is a method used to get a program 'foot' into the door of the memory. In other words, when a volitile store loses its memory due to a system outage or program bug, an I/O device containing a backup copy of the program will be read in usually through a hardware-software handshaking to reload memory. Bootstrap programs are the software end of this reload and range from an absolute reload of all memory to a sophisticated selective partial reload of only mutilated memory. The...
Topics: 3ess, bootstrap, cinit
247
247
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by
Operation and Engineering Department
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eye 247
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Bell System training document with sequence charts and operational sketches of Panel Dial System circuits. This volume covers only the BCO (Battery Cut-Off) variant of the Panel system.
Topics: panel switch, bell system, telephony, switching
366
366
May 1, 1920
05/20
by
Illinois Bell Telephone Co.
texts
eye 366
favorite 3
comment 0
The Bell Telephone News Volume Nine April, 1920
Topics: bell system, at&t, magazine, telephone, periodicals, 1920s
44
44
1920
1920
by
New York Telephone
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eye 44
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New York Telephone Instructional Data, multiple volumes. Some are missing from our collection, so this is an incomplete document.
Topics: panel switch, telephone switch, connections museum, bell system
513
513
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by
Western Electric Co., Inc.
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eye 513
favorite 4
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General historical background of Western Electric Finding his Voice: Western Electric Company (1929)
Topics: western electric, bell system, telephony
102
102
Jul 1, 1922
07/22
by
Pacific Telephone & Telegraph Company
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eye 102
favorite 0
comment 0
45
45
1920
1920
by
Western Electric Co.
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eye 45
favorite 0
comment 0
Topics: panel switch, circuit description, bell system, telephone switching, AT&T
42
42
1920
1920
by
Western Electric Co.
texts
eye 42
favorite 0
comment 0
Topics: panel switch, circuit description, bell system, telephone switching, AT&T
12
12
Dec 1, 1979
12/79
by
Pacific Northwest Bell Telephone Company
texts
eye 12
favorite 0
comment 0
13
13
Sep 1, 1961
09/61
by
American Telephone & Telegraph Company
texts
eye 13
favorite 0
comment 0
44
44
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-
by
Bell Telephone Laboratories Incorporated
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eye 44
favorite 0
comment 0
83
83
Feb 1, 1922
02/22
by
Pacific Telephone & Telegraph Company
texts
eye 83
favorite 0
comment 0
36
36
Nov 15, 1977
11/77
by
Bell Telephone Laboratories Incorporated
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eye 36
favorite 0
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The Maintenance Data Transmitter (MDT) is a trouble data collection device for No. 5 crossbar offices using the Automatic Trouble Analysis (ATA) System. It is designed to collect the trouble data presently punched in trouble record cards and forward this information via data link to a central computer for analysis.
Topics: 5xb, maintenance
293
293
Apr 15, 1949
04/49
by
Bardeen, J. and Brattain, W. H., Bell Telephone Laboratories
texts
eye 293
favorite 0
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A description of the semiconductor physics involved in transistor action.
Topic: semiconductor charge electron hole mobility
75
75
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by
Bell Telephone Laboratories
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eye 75
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Crossbar Dial System Section III, Part 1: Originating Circuits Bell Telephone Laboratories, Inc. Systems Development Department 463 West Street New York City
Topics: crossbar, switching, telephone switching, bell system, 1xb
44
44
1925
1925
by
Western Electric Co.
texts
eye 44
favorite 0
comment 0
Topics: panel switch, circuit description, bell system, telephone switching, AT&T
47
47
1926
1926
by
Western Electric Co.
texts
eye 47
favorite 0
comment 0
Topics: panel switch, circuit description, bell system, telephone switching, AT&T
124
124
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-
by
Pacific Telephone & Telegraph Co.
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eye 124
favorite 1
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Ed Fox was a panel switchman in Seattle's RAinier/PArkway-2 central office. This is a personal notebook of training sketches and drawings that he saved, and gave to the Connections Museum in the 1980s. Besides the training drawings, this folio also includes BSP A445.002 Banks - Panel Multiple Types.
Topics: bell system, bsp, western electric, panel switch, telephone switching
68
68
Jun 1, 1975
06/75
by
Bell Telephone Laboratories, Incorporated
texts
eye 68
favorite 0
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This specification covers the requirements for the recovery of F1A Ringers.
Topics: bsrs, ringer, f1a
52
52
Aug 15, 1975
08/75
by
Bell Telephone Laboratories Incorporated
texts
eye 52
favorite 0
comment 0
192
192
Jun 29, 1976
06/76
by
American Telephone & Telegraph Company
texts
eye 192
favorite 0
comment 0
375
375
Feb 6, 1981
02/81
by
Bell Telephone Laboratories Incorporated
texts
eye 375
favorite 0
comment 0
45
45
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-
by
Bell Telephone Laboratories Incorporated
texts
eye 45
favorite 0
comment 0
47
47
Jul 1, 1972
07/72
by
Bell Telephone Laboratories, Incorporated
texts
eye 47
favorite 0
comment 0
This specification covers the connections for the hand telephone sets (hanging type) that are listed in Table A.
Topics: bsrs, telephone set, hanging
59
59
1923
1923
by
Bell Telephone Laboratories, inc; Fletcher, Harvey, 1884-1981; Riesz, R. R; Galt, R. G
texts
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Bell Telephone System Technical Publications Monograph B, Issue 29: Power Losses In Insulating Materials: E.T. Hoch March 1923
Topics: Electric insulators and insulation, Dielectrics
