Bell System Practices
Western Electric Telephones and Equipment
As scanned by Frank Harrell (AKA Cowboy Frank)

File Naming Conventions
 NameSizeDescription
[DIR]Parent Directory -  
[ ]1948 NPA map w. annotations 2007x1516, colorized 4b.pd-1.pdf257K 
[ ]1A1_Key_Telephone_System.pdf2.5M 
[ ]476-202-100 AECo Prepay Paystations – Descriptions.pdf615K 
[ ]4A speakerphone scmatics SD_69909_01_I8D1_4ASpkr.pdf3.4M 
[ ]500-110-100a.pdf134K 
[ ]ATTPhotos.pdf2.5M 
[ ]BSP_index_1979-02-i06.pdf9.5M 
[ ]Bell_Telephone_News_-_Chicago_TelCo_April_1920_Machine_Switching.pdf 12M 
 BookInventory.xlsx 10K 
[ ]C38.851-SetsFor750-755_tl.pdf217K 
[ ]CableTesting-FaultLocating.pdf2.1MDocument by 3M on testing cables
[ ]ElectricalPrinciples.pdf6.4MThe Application Of Electricity And Magnetism To Transmission In The Telephone Plant, Section I (Bell System, 1923-1948)
[ ]Electricity.htm159K 
[ ]GTE_478-202-100_Magicall_Dialer.pdf3.2M 
[ ]Modular_Set_Intro_-_BLR.pdf2.6MPortion of the Bell Laboratories Record from September 1974 discussing modular cords
[ ]SD_69559_01_I11D_TieLine.pdf3.0M 
[ ]WE_Colors.pdf 36K 
[ ]bellpatent174465.pdf462K 
 dtmf_bell_labs.doc4.6M 
[ ]the_history_of_lincoln_telephone_and_telegraph_-_1955-small.pdf 16M 
[ ]touchtone_hf.pdf631K 

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Site first posted January 30, 2012       Domain regesterd: Febuary 1, 2012