Folder BLR

See Chuck Hensley's comprehensive index to articles in the BLR in the folder below.  It can be used to locate articles to research, whether found in the TCI LIbrary or elsewhere.

Chuck has offered to scan a limited number of pages from his collection (at his convenience).  Send requests using the "Contact Us" link in the Menu Bar above.

HINT:  Search for "BLR" followed by a topic keyword to find a series of related articles.  Use alphabetic sort to display them in chronological order.  e.g.  BLR PBX  or  BLR Picturephone.

When posted, complete scanned BLR issues were available here:
  http://www.americanradiohistory.com/Bell_Laboratories_Record_Issue_Key.htm

Categories

Documents

pdf 40aug BLR p369 321A Loudspeaking Tel Set and 2A Key Tel System Popular

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40aug_BLR_p369_2A_Key_Tel_Sys_and_321_Loudspeaking_Tel_Set_A4.pdf

40aug BLR p369 321A Loudspeaking Tel Set and 2A Key Tel System

August 1941 Bell Labs Record.  Contributed by Steve Cichorsky.

pdf 40jul BLR P332 Drop Wire

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40jul_BLR_p332_Drop_Wire.pdf

40jul BLR P332 Drop Wire

Bell Labs Record.  Contributed by Chuck Hensley. 

pdf 40jul BLR P342 Sound Tests of Dials and Ringers

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40jul_BLR_p342_Sound_Tests_of_Dials_and_Ringers.pdf

40jul BLR P342 Sound Tests of Dials and Ringers

Bell Labs Record.  Contributed by Chuck Hensley. 

pdf 40jun BLR P315 1A Key Telephone System

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40jun_BLR_p315_1A_Key.pdf

40jun BLR P315 1A Key Telephone System

Bell Labs Record.  Contributed by Chuck Hensley. 

pdf 40oct BLR P41 Telephone Explosive Atmosphere 320

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40oct_BLR_p41_Telephone_Explosive_Atmosphere_320.pdf

Bell Labs Record.  Contributed by Chuck Hensley. 

pdf 41apr BLR "No Such Number: Tone for Dial Systems" Popular

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41apr_BLR_No_Such_Number_Tone_for_Dial_Systems.pdf

41apr BLR "No Such Number: Tone for Dial Systems"

April 1941 Bell Labs Record. Contributed by Steve Cichorsky

pdf 41apr BLR National Defense And The Bell System Popular

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41apr_BLR_National_Defense_and_the_Bell_System.pdf

41apr BLR National Defense And The Bell System

April 1941 Bell Labs Record.  Contributed by Steve Cichorsky.

pdf 41apr BLR p234 Remote Control For Reversible Program Circuits Popular

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41apr_BLR_p234_Remote_Control_for_Reversible_Program_Circuits.pdf

41apr BLR p234 Remote Control For Reversible Program Circuits

April 1941 Bell Labs Record.

pdf 41aug BLR P380 Telephone Cords

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41aug_BLR_p380_Telephone_Cords.pdf

41aug BLR P380 Telephone Cords

Bell Labs Record.  Contributed by Chuck Hensley. 

pdf 41dec BLR P106 Station Keys

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41dec_BLR_p106_Station_Keys.pdf

41dec BLR P106 Station Keys

Bell Labs Record.  Contributed by Chuck Hensley. 

pdf 41nov BLR P76 Lineman Handset

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41nov_BLR_p76_Lineman_Handset.pdf

41nov BLR P76 Lineman Handset

Bell Labs Record.  Contributed by Chuck Hensley. 

pdf 41nov BLR P77 Repairman's Test Set ''Pin'' Dial

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41nov_BLR_p77_Buttin_Dial.pdf

41nov BLR P77 Repairman's Test Set ''Pin'' Dial

Bell Labs Record.  Contributed by Chuck Hensley. 

pdf 41oct BLR P34 Coin Collector Popular

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41oct_BLR_p34_Coin_Collector.pdf

41oct BLR P34 Coin Collector

Bell Labs Record.  Contributed by Chuck Hensley. 

pdf 42aug BLR P295 Telephone Cords

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42aug_BLR_p295_Telephone_Cords.pdf

42aug BLR P295 Telephone Cords

Bell Labs Record.  Contributed by Chuck Hensley. 

pdf 42mar BLR P178 300G Outdoor Set

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42mar_BLR_p178_300G_Outdoor_Set.pdf

42mar BLR P178 300G Outdoor Set

Bell Labs Record.  Contributed by Chuck Hensley. 

pdf 42May BLR P222 Small Ringer Popular

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42May_BLR_p222_Small_Ringer.pdf

42May BLR P222 Small Ringer

Contributed by Chuck Hensley.

pdf 42May BLR P222 Small Ringer B1A For 300 Series Popular

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42May_BLR_p222_Small_Ringer_B1A_for_300_Series.pdf

42May BLR P222 Small Ringer B1A For 300 Series

Bell Labs Record.  Contributed by Chuck Hensley. 

pdf 42oct BLR P45 Hard of Hearing - 332 set Popular

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42oct_BLR_p45_Hard_Hearing.pdf

42oct BLR P45 Hard of Hearing - 332 set

Bell Labs Record.  Contributed by Chuck Hensley. 

pdf 43Feb BLR P130 PBX For War Popular

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43Feb_BLR_P130_PBX_For_War.pdf

43Feb BLR P130 PBX For War

War Department Office Building, Washington, DC.   Bell Labs Record. Contributed by Chuck Hensley.

pdf 43feb BLR P168 Operator Ad

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43feb_BLR_p168_Operator_Ad.pdf

Bell Labs Record.  Contributed by Chuck Hensley. 

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