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pdf PTT PacTel Sep46 Supervisors Guide Toll Offices NorCal Nev tci ocr r Popular

995 downloads

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PTT_PacTel_Sep46_-_Supervisors_Guide_Toll_Offices_NorCal_Nev_tci_ocr_r.pdf

Contributed by Steve Cichorsky.

pdf Associated Telephone THE MOUTH-PIECE Sept 1930 Ocr R Popular

1275 downloads

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Associated_Telephone_THE_MOUTH-PIECE_Sept_1930_ocr_r.pdf

Associated Telephone THE MOUTH-PIECE Sept 1930 Ocr R

Newsletter includes profiles of installations at Lexington, KY, Guernsey, WY, Pamona, CA and Erie, PA.  Contributed by Steve Cichorsky.

pdf SF Bay Area Number Change August 10 1947 Ocr R Popular

1226 downloads

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SF_Bay_Area_Number_Change_August_10_1947_ocr_r.pdf

SF Bay Area Number Change August 10 1947 Ocr R

Contributed by Steve Cichorsky.

pdf POEEJ 10-81 - The Evolution Of Switching Sys Architecture - A5 Ocr R

55 downloads

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POEEJ_10-81_-_The_Evolution_of_Switching_Sys_Architecture_-_A5_ocr_r.pdf

Contributed by Steve Cichorsky.  OCR by Clint Gilliland.

pdf Atkinson Switchboard Cable Colours Popular

1459 downloads

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Atkinson_Switchboard_Cable_Colours.pdf

Atkinson Switchboard Cable Colours
(Extract) Colour scheme of switchbalrd cables with 101 conductors. Also includes a nice drawing of "makeup of a typical switchboard cable" and text segment on cable waxing. Contributed by Paul Coxwell.

pdf General Telephone Company Of California Test Number Directory Extract Popular

1438 downloads

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General_Telephone_Company_of_California_Test_Number_Directory_Extract.pdf

General Telephone Company Of California Test Number Directory Extract
Contributed by Steve Cichorsky.

pdf Evolution of the Strowger Automatic Telephone - Chart - ca. 1922 Popular

1291 downloads

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22ca_Evolution_of_Strowger_Instruments.pdf

Evolution of the Strowger Automatic Telephone - Chart - ca. 1922
Contributed by Steve Cichorsky

pdf Unification of the Manual and Automatic Telephone Systems - 1919 Popular

1113 downloads

Download (pdf, 396 KB)

19sep_TelegraphAndTelephoneAge_Unification_of_Los_Angeles_Automatic_Manual_Telephone_Systems.pdf

Unification of the Manual and Automatic Telephone Systems - 1919
Contributed by Steve Cichorsky

pdf 55may REA Voice Frequency Loading Trunk Cables TelEngConstManual Sec 431 I1 Popular

1429 downloads

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55may_REA_Voice_Frequency_Loading_Trunk_Cables_TelEngConstManual_Sec_431_I1.pdf

pdf Automatic Telephone Exchange Systems Popular

1775 downloads

Download (pdf, 27.17 MB)

30mar_GPO_AutomaticTelephoneExchangeSystems.pdf

Automatic Telephone Exchange Systems
March 1930. His Majesty's Stationery Office.  Part 14B.  Rural Automatic Exchanges - 25/100 lines, using units, Auto, No. 5 - Installation and Maintenance.  British Post Office UAX5.  About 28MB.  Contributed by Paul Coxwell.

pdf The Faller Automatic System - 1902 Popular

1449 downloads

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The Faller Automatic System - 1902.pdf

pdf Crossbar Systems Incomplete Popular

1673 downloads

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Crossbar Systems Incomplete.pdf

pdf No. 5 Crossbar (Chapter Three) Rssp Popular

1824 downloads

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No. 5 Crossbar (Chapter Three) rssp.pdf

pdf Panel Switching System - Chapter V Rss Popular

1712 downloads

Download (pdf, 10.84 MB)

Panel Switching System - Chapter V rss.pdf

pdf Billing AMA Toll Popular

1710 downloads

Download (pdf, 687 KB)

Billing AMA Toll.pdf

Billing AMA Toll

Mechanized Billing of AMA Toll Messages

pdf SATT AIEE Paper Popular

2023 downloads

Download (pdf, 2.85 MB)

SATT AIEE Paper.pdf

pdf 4A Toll Crossbar Popular

2214 downloads

Download (pdf, 3.38 MB)

4A Toll Crossbar.pdf

4A Toll Crossbar

5 pages. "Transistors and Their Circuits in the 4A Toll Crossbar Switching System," by P. Mallery, AIEE, Sept. 1953, p.388. Nation-wide dialing, Translator, photo-transistor.

pdf 2006 - Tennessee 10-year Switch Plan Popular

1488 downloads

2006 - Tennessee 10-year Switch Plan

"Rules of Tennessee Regulatory Authority,"? "Ten Year Master Plan for Technology Deployment by Telephone Companies."?? Shows switch locations and types.? July 2006.

pdf Chapius - American Step By Step Systems - Director System Popular

1958 downloads

Download (pdf, 810 KB)

Chapuis- Director System.pdf

pdf Telephony (book), 1938, Ch. VIII - Director System Popular

1662 downloads

Download (pdf, 21.87 MB)

Director System Ch. VIII.pdf

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Thanks for new documents from Ed Palazzo, 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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