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 35may BLR P265 Outdoor Telephone 300 Type

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35may_BLR_p265_Outdoor_Telephone_300_Type.pdf

35may BLR P265 Outdoor Telephone 300 Type

Bell Labs Record.  Contributed by Chuck Hensley. 

pdf 35nov BLR P81 Flat Inside Wire

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35nov_BLR_p81_Flat_Inside_Wire.pdf

Bell Labs Record.  Contributed by Chuck Hensley. 

pdf 36aug BLR P381 Artificial Mouth

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36aug_BLR_p381_Artificial_Mouth.pdf

36aug BLR P381 Artificial Mouth

Bell Labs Record.  Contributed by Chuck Hensley. 

pdf 36aug BLR P399 Station Protector

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36aug_BLR_p399_Station_Protector.pdf

36aug BLR P399 Station Protector

Bell Labs Record.  Contributed by Chuck Hensley. 

pdf 36dec BLR P111 Selective Ringing Popular

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36dec_BLR_p111_Selective_Ringing.pdf

36dec BLR P111 Selective Ringing

Bell Labs Record.  Contributed by Chuck Hensley. 

pdf 36jul BLR P359 300 Set Trial Popular

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36jul_BLR_p359_300_Set_Trial.pdf

36jul BLR P359 300 Set Trial

Bell Labs Record.  Contributed by Chuck Hensley. 

pdf 36may BLR P297 Larger Telephone Booth

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36may_BLR_p297_Larger_Telephone_Booth.pdf

Bell Labs Record.  Contributed by Chuck Hensley. 

pdf 36may BLR P312 Telephone - Conference Aid

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36may_BLR_p312_Telephone_Conference.pdf

36may BLR P312 Telephone - Conference Aid

100-type loud speaker set, 1933, monitor speaker (early "Spokesman").  Bell Labs Record.  Contributed by Chuck Hensley. 

pdf 36sep BLR P21 Hand Tools Popular

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36sep_BLR_p21_Hand_Tools.pdf

36sep BLR P21 Hand Tools

Bell Labs Record.  Contributed by Chuck Hensley. 

pdf 37aug BLR P370 101-type Key Equipments Popular

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37aug_BLR_p370_101_Key.pdf

37aug BLR P370 101-type Key Equipments

Bell Labs Record.  Contributed by Chuck Hensley. 

pdf 37feb BLR P190 Ringer Remagnitizer Popular

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37feb_BLR_p190_Ringer_Remagnitizer.pdf

37feb BLR P190 Ringer Remagnitizer

Bell Labs Record.  Contributed by Chuck Hensley. 

pdf 38apr BLR P282 Magnetic Telephone

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38apr_BLR_p282_Magnetic_Telephone.pdf

38apr BLR P282 Magnetic Telephone

Bell Labs Record.  Contributed by Chuck Hensley. 

pdf 38aug BLR P391 Station Cord

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38aug_BLR_p391_Station_Cord.pdf

38aug BLR P391 Station Cord

Bell Labs Record.  Contributed by Chuck Hensley. 

pdf 38jun BLR P336 755PBX Popular

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38jun_BLR_p336_755PBX.pdf

38jun BLR P336 755PBX

Bell Labs Record.  Contributed by Chuck Hensley. 

pdf 38oct BLR P52 Enamel Number Plate

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38oct_BLR_p52_Enamel_Number_Plate.pdf

38oct BLR P52 Enamel Number Plate

Bell Labs Record.  Contributed by Chuck Hensley. 

pdf 38sep BLR P11 Operator Mouthpiece

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38sep_BLR_p11_Operator_Mouthpiece.pdf

Bell Labs Record.  Contributed by Chuck Hensley. 

pdf 39dec BLR P97 Lucite Handset

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39dec_BLR_p97_Lucite_Handset.pdf

39dec BLR P97 Lucite Handset

Bell Labs Record.  Contributed by Chuck Hensley. 

pdf 39jul BLR P347 Antisidetone Circuit Popular

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39jul_BLR_p347_Antisidetone_Circuit.pdf

39jul BLR P347 Antisidetone Circuit

Bell Labs Record.  Contributed by Chuck Hensley. 

pdf 39mar BLR P212 Molded Design F Handset

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39mar_BLR_p212_Molded_Design_F_Handset.pdf

Bell Labs Record.  Contributed by Chuck Hensley. 

pdf 39mar BLR P230 Wire Toner

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39mar_BLR_p230_Wire_Toner.pdf

39mar BLR P230 Wire Toner

Bell Labs Record.  Contributed by Chuck Hensley. 

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