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 75Dec BLR P427 Recycling Plastic Popular

By 601 downloads

Download (pdf, 757 KB)

75Dec_BLR_P427_Recycling_Plastic.pdf

75Dec BLR P427 Recycling Plastic

Bell Labs Record. Contributed by Chuck Hensley.

pdf 75Jan BLR P18 Customer Products Evolution Popular

By 1036 downloads

Download (pdf, 3.53 MB)

75Jan_BLR_P18_Customer_Products_Evolution.pdf

75Jan BLR P18 Customer Products Evolution

Bell Labs Record. Contributed by Chuck Hensley.

pdf 75Mar BLR P175 FlatScreen Video Popular

By 197 downloads

Download (pdf, 259 KB)

75Mar_BLR_P175_FlatScreen_Video.pdf

75Mar BLR P175 FlatScreen Video

Bell Labs Record. Contributed by Chuck Hensley.

pdf 75May BLR P235 Design Line Telephones Popular

By 442 downloads

Download (pdf, 2.25 MB)

75May_BLR_P235_Design_Line_Telephones.pdf

75May BLR P235 Design Line Telephones

Bell Labs Record. Contributed by Chuck Hensley.

pdf 75May BLR P243 770A PBX New Features Popular

By 392 downloads

Download (pdf, 2.69 MB)

75May_BLR_P243_770A_PBX_New_Features.pdf

75May BLR P243 770A PBX New Features

Bell Labs Record. Contributed by Chuck Hensley.

pdf 75Oct BLR P377 Transaction Telephone Popular

By 387 downloads

Download (pdf, 1.40 MB)

75Oct_BLR_P377_Transaction_Telephone.pdf

Bell Labs Record. Contributed by Chuck Hensley.

pdf 75Sep BLR P316 DIMENSION PBX Popular

By 644 downloads

Download (pdf, 2.26 MB)

75Sep_BLR_P316_DIMENSION_PBX.pdf

75Sep BLR P316 DIMENSION PBX

Bell Labs Record. Contributed by Chuck Hensley.

pdf 76Apr BLR P91 First 50 Years Popular

By 386 downloads

Download (pdf, 2.68 MB)

76Apr_BLR_P91_First_50_Years.pdf

76Apr BLR P91 First 50 Years

Bell Labs Record. Contributed by Chuck Hensley.

pdf 76Jan BLR P3 Touch A Matic Popular

By 556 downloads

Download (pdf, 1.30 MB)

76Jan_BLR_P3_Touch_A_Matic.pdf

76Jan BLR P3 Touch A Matic

Bell Labs Record. Contributed by Chuck Hensley.

pdf 76Mar BLR P61 Centalized Attendant Service Popular

By 488 downloads

Download (pdf, 2.16 MB)

76Mar_BLR_P61_Centalized_Attendant_Service.pdf

76Mar BLR P61 Centalized Attendant Service

Bell Labs Record. Contributed by Chuck Hensley.

pdf 76May BLR P115 Telephone After 50 Popular

By 556 downloads

Download (pdf, 2.51 MB)

76May_BLR_P115_Telephone_After_50.pdf

76May BLR P115 Telephone After 50

Bell Labs Record. Contributed by Chuck Hensley.

pdf 76Nov BLR P274 DIMENSION Custom Service Popular

By 374 downloads

Download (pdf, 1.78 MB)

76Nov_BLR_P274_DIMENSION_Custom_Service.pdf

76Nov BLR P274 DIMENSION Custom Service

Bell Labs Record. Contributed by Chuck Hensley.

pdf 77Mar BLR P79 COMKEY 718 1434 2152 Popular

By 599 downloads

Download (pdf, 1.80 MB)

77Mar_BLR_P79_COMKEY_718_1434_2152.pdf

77Mar BLR P79 COMKEY 718 1434 2152

Bell Labs Record. Contributed by Chuck Hensley.

pdf 77Nov BLR P271 HORIZON PBX Popular

By 484 downloads

Download (pdf, 1.19 MB)

77Nov_BLR_P271_HORIZON_PBX.pdf

77Nov BLR P271 HORIZON PBX

Bell Labs Record. Contributed by Chuck Hensley.

pdf 77Nov BLR P276 HORIZON PBX Design Development Popular

By 799 downloads

Download (pdf, 1.33 MB)

77Nov_BLR_P276_HORIZON_PBX_Design_Development.pdf

77Nov BLR P276 HORIZON PBX Design Development

Bell Labs Record. Contributed by Chuck Hensley.

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Read the articles under "Introduction" in the black menu bar above.

Recent Contributors

Thanks for new documents from Jeff Lamb, Chuck Hensley, John Novack, Paul Fassbender, Clint Gilliland, Steve Cichorsky, John Gilbert, Chuck Batson, Alan David, Steve Flocke, Paul Wills, Dave Gruger, Jim Prather, John Stancliff and Sam Etler.

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