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

Documents

Order by : Name | Date | Hits [ Ascendant ]

75Mar BLR P175 FlatScreen Video 75Mar BLR P175 FlatScreen Video

Date added: 07/08/2013
Date modified: 07/08/2013
Filesize: 259.17 kB
Downloads: 459

Bell Labs Record. Contributed by Chuck Hensley.

75May BLR P235 Design Line Telephones 75May BLR P235 Design Line Telephones

Date added: 07/08/2013
Date modified: 07/08/2013
Filesize: 2.25 MB
Downloads: 1357

Bell Labs Record. Contributed by Chuck Hensley.

75May BLR P243 770A PBX New Features 75May BLR P243 770A PBX New Features

Date added: 07/08/2013
Date modified: 07/08/2013
Filesize: 2.69 MB
Downloads: 918

Bell Labs Record. Contributed by Chuck Hensley.

73Apr BLR P99 Portable Conference Telephone - 50A Speakerphone 73Apr BLR P99 Portable Conference Telephone - 50A Speakerphone

Date added: 07/05/2013
Date modified: 12/27/2013
Filesize: 1.98 MB
Downloads: 595

Bell Labs Record.  Contributed by Chuck Hensley.

33Mar BLR P210 Large Establishment PBX - 702A 33Mar BLR P210 Large Establishment PBX - 702A

Date added: 07/04/2013
Date modified: 12/27/2013
Filesize: 1.14 MB
Downloads: 329

Bell Labs Record. Contributed by Chuck Hensley.

43Feb BLR P130 PBX For War 43Feb BLR P130 PBX For War

Date added: 07/04/2013
Date modified: 07/04/2013
Filesize: 1.15 MB
Downloads: 551

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

64Apr BLR P114 PICTUREPHONE Service Experiments 64Apr BLR P114 PICTUREPHONE Service Experiments

Date added: 07/04/2013
Date modified: 07/04/2013
Filesize: 1.4 MB
Downloads: 342

Bell Labs Record. Contributed by Chuck Hensley.

67Jun BLR P175 PICTUREPHONE Electron Tube 67Jun BLR P175 PICTUREPHONE Electron Tube

Date added: 07/04/2013
Date modified: 07/04/2013
Filesize: 1.43 MB
Downloads: 563

Bell Labs Record. Contributed by Chuck Hensley.

68Jun BLR P206 PICTUREPHONE On Executive Desks 68Jun BLR P206 PICTUREPHONE On Executive Desks

Date added: 07/04/2013
Date modified: 07/04/2013
Filesize: 351.5 kB
Downloads: 375

Bell Labs Record. Contributed by Chuck Hensley.

71Aug BLR P226 Improved Speakerphone Will Become 4A In 1974 71Aug BLR P226 Improved Speakerphone Will Become 4A In 1974

Date added: 07/04/2013
Date modified: 07/04/2013
Filesize: 394.74 kB
Downloads: 380

Bell Labs Record. Contributed by Chuck Hensley.

71Oct BLR P270 PICTUREPHONE Key Systems 71Oct BLR P270 PICTUREPHONE Key Systems

Date added: 07/04/2013
Date modified: 07/04/2013
Filesize: 2.24 MB
Downloads: 372

Bell Labs Record. Contributed by Chuck Hensley.

71Oct BLR P293 Operator Chairs 71Oct BLR P293 Operator Chairs

Date added: 07/04/2013
Date modified: 07/04/2013
Filesize: 287.63 kB
Downloads: 333

Bell Labs Record. Contributed by Chuck Hensley.

71Sep BLR P231 Switching for Multilocation Customers 71Sep BLR P231 Switching for Multilocation Customers

Date added: 07/04/2013
Date modified: 07/04/2013
Filesize: 1.78 MB
Downloads: 359

Bell Labs Record. Contributed by Chuck Hensley.

72Apr BLR P110 Helping Handicapped Dial Payphones 72Apr BLR P110 Helping Handicapped Dial Payphones

Date added: 07/04/2013
Date modified: 07/04/2013
Filesize: 708 kB
Downloads: 596

Bell Labs Record. Contributed by Chuck Hensley.

72Aug BLR P217 Customer Premises Connective System 72Aug BLR P217 Customer Premises Connective System

Date added: 07/04/2013
Date modified: 07/04/2013
Filesize: 1.08 MB
Downloads: 340

Bell Labs Record. Contributed by Chuck Hensley.

72Jul BLR P167 Public Coin Telephone Enclosures 72Jul BLR P167 Public Coin Telephone Enclosures

Date added: 07/04/2013
Date modified: 07/04/2013
Filesize: 2.89 MB
Downloads: 396

Bell Labs Record. Contributed by Chuck Hensley.

72May BLR P134 801A Midi PBX 72May BLR P134 801A Midi PBX

Date added: 07/04/2013
Date modified: 07/04/2013
Filesize: 1.79 MB
Downloads: 632

Bell Labs Record. Contributed by Chuck Hensley.

72May BLR P140 New Telephone Headsets 60A 61A 72May BLR P140 New Telephone Headsets 60A 61A

Date added: 07/04/2013
Date modified: 07/04/2013
Filesize: 746.52 kB
Downloads: 610

Bell Labs Record. Contributed by Chuck Hensley.

72Sep BLR P249 Checkless Society Telephones Card Dialer 72Sep BLR P249 Checkless Society Telephones Card Dialer

Date added: 07/04/2013
Date modified: 07/04/2013
Filesize: 1.34 MB
Downloads: 352

Bell Labs Record. Contributed by Chuck Hensley.

72Sep BLR P266 Vandal Resistant Payphone Mount 72Sep BLR P266 Vandal Resistant Payphone Mount

Date added: 07/04/2013
Date modified: 07/04/2013
Filesize: 797.58 kB
Downloads: 301

Bell Labs Record. Contributed by Chuck Hensley.

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