Documents - TCI Library

C43.151 i2 Jan60 - Auxiliary Signals ID

paul-f@verizon.net (Paul F) — Sun, 17 May 2026 14:38:22 -0700

KS-16301 and KS-8000 series - Bells, Horns and Chimes. Contributed by Jeremy Walters.

ABC of the Telephone - Homans - 1904

paul-f@verizon.net (Paul F) — Sun, 10 May 2026 17:40:18 -0700

380 pages. 77MB. Many illustrations. ABC of the TELEPHONE, James E. Homans, 2nd Ed. Revised 1904. Contributed by Ralph Meyer.

52may BSTJ p443 - Experimental Electronically Controlled Auto Switching Sys - with "Essex" Subscriber Set - Annotated

paul-f@verizon.net (Paul F) — Mon, 27 Apr 2026 18:19:22 -0700

26 pages. ECSS. An Experimental Electronically Controlled Automatic Switching System, By W. A. MALTHANER AND H. EARLE VAUGHAN, Bell System Technical Journal (BSTJ), May 1952.

Annotated for reference in conjunction with the description of the "Essex" telephone on page 4-11 of "Telephone Dials and Pushbuttons" by Stanley Swihart.

A concept set with calculator-style dial for pre-set dialing is described in both articles, and photos of a set can be viewed here:
http://www.paul-f.com/weproto.html#Other

Contributed by Paul Fassbender

C30.002 i6 May55 - Transmission Zoning

paul-f@verizon.net (Paul F) — Sun, 22 Mar 2026 16:39:15 -0700

1.01 This section is reissued to provide the installer and repairman with information regarding the type of transmitter and receiver associated with the proper hand set, that should be used in each of the transmission zones. This section has been revised to incorporate information covering the transmission zoning of F4 and F5 hand sets equipped with T1 transmitter units and U1 receiver units.

Contributed by Paul Fassbender.

500-110-100 SW Add iA Mar59 - Transmission Zoning

paul-f@verizon.net (Paul F) — Sun, 22 Mar 2026 14:52:05 -0700

Southwest Bell Telephone Addendum. Authorizes the use of 5300-type telephone sets in Zone 2 if they are equipped with a G1 handle containing an F1 transmitter and a U1 receiver. Contributed by Paul Fassbender.

500-110-100 SW Add iB Apr68 - Transmission Zoning

paul-f@verizon.net (Paul F) — Sun, 22 Mar 2026 14:46:05 -0700

Southwest Bell Telephone addendum. Eliminates zones 2 and 5. Only zone L need be specified in the "TZ" (Transmission Zone) block on the service order, if applicable.

500-110-100 i3 Mar59 - Transmission Zoning

paul-f@verizon.net (Paul F) — Sun, 22 Mar 2026 14:38:40 -0700

Renumbered from C38.003 i3 Mar59. Contributed by Paul Fassbender.

500-110-100 i4 Feb64 - Transmission Zoning

paul-f@verizon.net (Paul F) — Sun, 22 Mar 2026 14:35:07 -0700

Eliminates zone 5-2. Updates the sets covered. Contributed by Paul Fassbender.

C38.003 i2 Jan58 - Transmission Zoning

paul-f@verizon.net (Paul F) — Fri, 20 Mar 2026 15:43:34 -0700

Contributed by Dennis Hock. OCR by Paul Fassbender.

C38.003 i3 Mar59 - Transmission Zoning

paul-f@verizon.net (Paul F) — Thu, 19 Mar 2026 14:59:23 -0700

Renumbered to 500-110-100 issue 3,March 1959. The Transmission Zoning chart shows a 300-type set literally getting a shot-in-the-arm when a battery is added.
Contributed by Paul Fassbender.

C38.003 i3 Mar59 - Transmission Zoning - black & white

paul-f@verizon.net (Paul F) — Thu, 19 Mar 2026 14:58:10 -0700

Contributed by Paul Fassbender.

AB22.066.1 i1 May52 - 500 Set Description

paul-f@verizon.net (Paul F) — Tue, 03 Mar 2026 12:50:52 -0800

May 1952. (Renumbered to 852-220-100 i1) 500 series design objectives, mechanical, electrical and transmission features, noise crosstalk and sidetone considerations in design and performance.

ITALTEL S62

r.h.enthoven@infc.info (Remco E) — Wed, 25 Feb 2026 14:18:37 -0800

Contributed by Nicola Giannarelli

ATT or BSP 999 Division "How to Operate" Booklets on File - Feb 2026

paul-f@verizon.net (Paul F) — Wed, 11 Feb 2026 21:59:46 -0800

Reference list of documents in Steph Kerman's collection. Contributed by Steph Kerman.

Please send scans of documents not already in the TCI Library. Thanks!

1989 ITT - Cortelco Telephone Apparatus Practices - Contents

paul-f@verizon.net (Paul F) — Thu, 15 Jan 2026 13:00:23 -0800

Partial contents of a binder of IT&T practices. Includes section and issue numbers. Practices are grouped: Standard Telephones, Multibutton, Handsfree, and Trendline. Each phone type has a general description, replacement parts, and circuit labels (connections or wiring diagrams). Contributed by Paul Fassbender.

If a search for a section number does not return an individual practice, a google site search for the section number may return the file on Mike Neale's Kellogg reference page containing the practice. Other sections of the binder are found with 1989 Telephone Apparatus Practices here:
http://www.telephonecollectors.info/strombergcarlson/kellogg/kellogg_main.htm

ITT Telephone Apparatus Practices Binder i8 vol1 - Contents

paul-f@verizon.net (Paul F) — Thu, 15 Jan 2026 12:47:44 -0800

Undated. Contents of ITT 15-101600 issue 8 volume 1 binder of IT&T practices. Includes section and issue numbers. Practices are grouped: Standard Telephones, Multibutton, Handsfree, and Trendline. Each phone type has a general description, replacement parts, and circuit labels (connections or wiring diagrams). Contributed by Steph Kerman.

If a search for a section number does not return an individual practice, a google site search for the section number may return the file on Mike Neale's Kellogg reference page containing the practice, or you can look for Telephone Apparatus Practices here:
http://www.telephonecollectors.info/strombergcarlson/kellogg/kellogg_main.htm

Reporter Jun57 - Historic Holmdel

paul-f@verizon.net (Paul F) — Wed, 07 Jan 2026 16:32:05 -0800

The Reporter, Bell Telephone Laboratories, June 1957. The history of the Holmdel, NJ site before the construction of the large BTL complex in the early 1960s. Contributed by Paul Fassbender.

C71.553.00 i1 Feb60 - 1A 1B Code Calling Systems - Description and Use

paul-f@verizon.net (Paul F) — Sun, 04 Jan 2026 15:22:49 -0800

Contributed by Paul Fassbender.

C71.553.01 i1 Feb60 - 1A 1B Code Calling Systems - Maintenance

paul-f@verizon.net (Paul F) — Sun, 04 Jan 2026 15:16:39 -0800

Contributed by Paul Fassbender.

C71.553.02 i1 Feb60 - 1A 1B Code Calling Systems - Connections

paul-f@verizon.net (Paul F) — Sun, 04 Jan 2026 15:14:14 -0800

Contributed by Paul Fassbender.