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Enter Search Terms separated by spaces (see Hints below).

Assuming auxiliary is required, and signals is required, the following results were found.

  • CD-26412

    Please send some good keywords to be added here. Contributed by Martin Harriss. Processed by Paul Fassbender. CIRCUIT DESCRIPTION s CD 26410 01 ISSUE 1 DWG ISSUE 1 CROSSBAR SYSTEMS NO. 3 INCOMING PLUG ENDED TRUNK CIRCUIT DP OR MF PULSING REVERSE...

  • CD-26413

    Please send some good keywords to be added here. Contributed by Martin Harriss. Processed by Paul Fassbender. I CIRCUIT DESCRIPTION I . CD 26413 01 ISSUE 1 DWG ISSUE 1 CROSSBAR SYSTEMS NO. 3 INCOMING PLUG ENDED TRUNK CIRCUIT FROM LOCAL TEST DESK.NO....

  • CD-26430

    Please send some good keywords to be added here. Contributed by Martin Harriss. Processed by Paul Fassbender. CIRCUIT DESCRIPTION CD 26430 01 ISSUE 1 APPENDIX 2A DWG ISSUE 3A DISTN CODE 1C05 CROSSBAR SYSTEMS NO. 3 2 WAY PLUG ENDED TRUNK CIRCUIT DIAL...

  • 473-310-100 i4 Sep73 - Public Emergency Reporting Systems

    3.02 Install relay apparatus used at the alarm location in accordance with the sections covering installation of auxiliary signals and power relay sets. Use of a nonlocking relay permits the use of an alarm on a code basis. ft Alarm will not sound iJ'...

  • Automatic Electric Technical Bulletin 500-407 Leich Type 40 and Type 80 PABX, 1964

    From the collection of the JKL Museum of Telephony Scanned by Jim Churchill LEICH TYPE 40 AND TYPE 80 P A B X r""'r'..... ~::,· ..;:\ . . . ~.. : . ,,...~ ::..~... ... i~~; ' .~.... . . ') . ~. > ~...: "' .. . .,_, .c,·. :.s .,_ ~' '·...

  • Sangamo 5367 i1 Nov72 - T101CSC Data Set

    60 pages. Installation and Operation. Contributed by Hubert Miller. Scanning and OCR by John Novack. TCI Library www.telephonecollectors.info INSTALLATION AND OPERATION MANUAL RIXON SANGAMO TlOlCSC SERIES DATA SET SYSTEM Rixon, Inc. A Subsidiary of...

  • BTL History 3: Switching Technology - 1982

    652 pages. 34MB. A History of Engineering and Science in the Bell System. Switching Technology (1925 1975), 1982. Contributed by Sam Etler, with post processing by Clint Gilliland. Switching Technology (1925 1975) Contributed to the TCI Library by...

  • CD-26385

    Please send some good keywords to be added here. Contributed by Martin Harriss. Processed by Paul Fassbender. CIRCUIT DESCRIPTION 35 CD 26385,..01 ISSUE 1 APPENDIX 3D DWG ISSUE 4D CROSSBAR SYSTEMS NO. 3 ORIGINATING REGISTER CIRCUIT DIAL PULSING AND 11...

  • SC Catalog 1967 - 1 Sec. D - T-940 i1 67ca - Transmission Equipment

    Contributed by John Novack. T 940 ISSUE 1 STROIVIEIERG CARLSON TRANS VI SS ON EQUIP VIENT TCI Library www.telephonecollectors.info , T 940 ISSUE 1 STROIVIBERG CARLSON TRANS VI SS ON EQUIPMENT TCI Library www.telephonecollectors.info , ( ( ( TCI Library...

  • 463-110-100 i13 Oct80 - Auxiliary Signals (Bells & Chimes)

    Includes photos and ordering chart for KS 8547, KS 2201, KS 20375, KS 8229 and KS 16301. Also Addendum 1, Jan 81. Contributed by Steve Cichorsky

  • SWBT Service And Equipment Manual [02] - Part III Section 2: Telephone Bells & Auxiliary Signals

    ca 1948 with later additions. Includes bells, buzzers, gongs, and horns. Other parts of this manual are in separate documents. The number in brackets [n] is the sort order for this document based on the documents currently in the Library. It may change...

  • Telephone Communication Systems 1970 - V1 Chap 3 - Local Manual Systems - ocr r

    6.37MB. 21 pages. Contributed by Steve Cichorsky. OCR by Clint Gilliland. [Original was archived] TELEPHONE COMMUNICATION SYSTEMS VOlUME I EARLY SYSTEMS AND STA noN EQUIPMENT 11.~;HJ EcJi1;on 1970, lnl,lt 2 COItPQRATE EDUCATION CENTER WES'tERN ELECTRIC...

  • Dimension Electronic PBX Series 100, 400 and 2000

    Dimension Electronic Private Branch Exchange. Contributed by Steve Cichorsky. OCR and Admin: Paul Fassbender. • • 1mens1on Electronic Private Branch Exchange 1 1 TCI Library: www.telephonecollectors.info ,...

  • 62sep BLR P297 1A Line Concentrator

    Contributed by Chuck Hensley. The "concentration" of telephone lines outside the central office is an old concept but a comparatively new art. Development of this idea has resulted in a device that can save operating telephone companies millions of...

  • CD-26424

    Please send some good keywords to be added here. Contributed by Martin Harriss. Processed by Paul Fassbender. CD 26424 01 ISSUE 1 APPENDIX lB DWG ISSUE 2B DISTN CODE 1C05 CIRCUIT DESCRIPTION I i\CROSSBAR SYSTEMS NO. 3 OUTGOING PLUG ENDED TRUNK CIRCUIT...

  • 534-400-110 i1 Feb29 - Manual PBX Swbd Cct and Oper Features

    Contributed by Len Hicken. OCR by Paul Fassbender. IELL SYSTEM PRACTICES SECTION 534 400 110 Plant Series Issue l, 2 27 29 AT &T Co Standard FUNDAMENTAL CIRCUIT AND OPERATING FEATURES COMMON MANUAL PBX SWITCHBOARDS CONTENTS 2.3 The alene of the jack...

  • CD-69091-01 i16D tci

    Contributed by John Novack. I I I I CIRCUIT DESCRIPTION C0 69091 01 STATION APPARATUS DEVELOPMENT DEPT. luue I6 0 PRINTED IN U.S.A. Owg. Iuue 16 0 STATION SYSTEMS KEY TELEPHONE SYSTEM NO. lA LINE ANO SIGNALING CIRCUIT O. CHANGES 0. I CHANGED AND ADDEO...

  • 463-233-900CA iB Oct72 - Voice Station Couplers - QSC-type

    Desc, Inst, Maint & tests. From Bell Canada Station Installation & Repair Manual, December 1972. Extracted by Sam Etler. SECTION 463 233 900CA Issue B, October 1972 Bell Canada Standard BELL SYSTEM PRACTICES VOICE STATION COUPLERS QCS TYPE DESCRIPTION,...

  • 1957 Graybar Catalog 12T - Misc Excerpts Ocr R

    Capacitor Electron Operating for securing additional ringers on 8 party lines and with No. ± 10% No. No. No. Current auxiliary signals on polarized ringing lines. 592AW 4600 26B(2)* 198A 592BW 4600 26B(2)* A C Not Biased No. 687CW 3 Subscriber Set:...

  • 000-000-000 i25 Aug73 - Master Numerical Index

    7 pages. Issue 25, August, 1973. Numerical Index Division 000 General Information and Master Numerical Index of All BSP Divisions. Search for 000 000 005 to see later issues of the Master Numerical Index. BELL SYSTEM PRACTICES AT&TCo Standard SECTION...


Results 61 - 80 of 135

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Examples of Search Terms:

  1. GTE AE; GTE and AE; GTE&AE; Handset and G1
  2. GTE or AE
  3. Handset not G1
  4. "N-205 Mini Network"
  5. "Western Electric" or "Bell System"

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NOTE: Basic and Advanced searches currently may not find BSPs when numbers are entered with hyphens (e.g. 502-400-401). Try entering the number with spaces instead (e.g. 502 400 401) or use Google Search.  We hope this will behave better in future software releases.

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Recent Contributors

Thanks for new documents from Bruce Patterson, Jon Kolger, Paul Ivester, Len Hicken, Paul Fassbender, Fred Haynes, Kurt Rudolph, Wade ("Kellogg KITT"), the Connections Museum, Rick Walsh, Jeff Lamb, Jeremy Walters, Mark Cuccia, Alan David, Harry Joseph, Charlie Terry, Karl Brose, Dennis Hock, Tim Griffin, Remco Enthoven, and Steve Cichorsky.

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Telephone Collectors International was incorporated under the laws of the state of Kansas on May 13, 1986. The goal of the organization is "to educate the public, as well as the members of the Corporation, regarding the history of telephony, the value of old telephones and related items, their collectability and preservation; to research telephone history and publish and provide literature thereon; to promote the public exhibition of old telephones and related items; and to promote common courtesies and guidelines for use by the public." Telephone Collectors International is recognized by the Internal Revenue Service as a 501(c)(3) organization, to which U.S. tax deductible contributions can be made.