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 ]

30Feb BLR P263 Testing Ringers Dials 30Feb BLR P263 Testing Ringers Dials

Date added: 06/20/2013
Date modified: 06/20/2013
Filesize: 706.24 kB
Downloads: 274

Bell Labs Record.  Contributed by Chuck Hensley.

30Feb BLR P278 - Dial PBX Residence 750-A 30Feb BLR P278 - Dial PBX Residence 750-A

Date added: 06/20/2013
Date modified: 11/05/2013
Filesize: 719.8 kB
Downloads: 300

Bell Labs Record.  750A PBX.  Contributed by Chuck Hensley.

30Jul BLR P527 Multiplying Subscriber Line No 100 30Jul BLR P527 Multiplying Subscriber Line No 100

Date added: 06/20/2013
Date modified: 06/20/2013
Filesize: 1.18 MB
Downloads: 383

Bell Labs Record.  Contributed by Chuck Hensley.

56Aug BLR P302 Small Dial PBX Attendant 56Aug BLR P302 Small Dial PBX Attendant

Date added: 06/20/2013
Date modified: 06/20/2013
Filesize: 1.25 MB
Downloads: 312

Bell Labs Record.  Contributed by Chuck Hensley.

57Dec BLR P485 Modern Crossbar PBX 756A 57Dec BLR P485 Modern Crossbar PBX 756A

Date added: 06/20/2013
Date modified: 06/20/2013
Filesize: 801.48 kB
Downloads: 946

Bell Labs Record.  Contributed by Chuck Hensley.

61Jun BLR P220 PBX Speeding Calls 756A DSS 61Jun BLR P220 PBX Speeding Calls 756A DSS

Date added: 06/20/2013
Date modified: 06/20/2013
Filesize: 528.56 kB
Downloads: 509

Bell Labs Record.  Contributed by Chuck Hensley.

62Oct BLR P327 Crossbar CENTREX Service 5Xbar 62Oct BLR P327 Crossbar CENTREX Service 5Xbar

Date added: 06/20/2013
Date modified: 06/20/2013
Filesize: 1.72 MB
Downloads: 330

Bell Labs Record.  Contributed by Chuck Hensley.

70Aug BLR P195 Data Communications 70Aug BLR P195 Data Communications

Date added: 06/20/2013
Date modified: 06/20/2013
Filesize: 2.48 MB
Downloads: 250

Bell Labs Record.  Contributed by Chuck Hensley.

70Oct BLR P259 1A2 Key Advances 70Oct BLR P259 1A2 Key Advances

Date added: 06/20/2013
Date modified: 12/28/2013
Filesize: 1.39 MB
Downloads: 645

Bell Labs Record.  Contributed by Chuck Hensley.

71Apr BLR P127 PICTUREPHONE For Business 850A PBX 71Apr BLR P127 PICTUREPHONE For Business 850A PBX

Date added: 06/20/2013
Date modified: 06/20/2013
Filesize: 804.61 kB
Downloads: 308

Bell Labs Record.  Contributed by Chuck Hensley.

71Feb BLR P61 Card Dialer ANSI Cards 71Feb BLR P61 Card Dialer ANSI Cards

Date added: 06/20/2013
Date modified: 06/20/2013
Filesize: 268.82 kB
Downloads: 572

Bell Labs Record.  Contributed by Chuck Hensley.

59Jan BLR P23 PBX Crossbar Circuitry 756A 59Jan BLR P23 PBX Crossbar Circuitry 756A

Date added: 06/19/2013
Date modified: 06/19/2013
Filesize: 1.52 MB
Downloads: 275

Bell Laboratories Record.  Contributed by Chuck Hensley.

63Nov BLR P374 101ESS 63Nov BLR P374 101ESS

Date added: 06/19/2013
Date modified: 06/19/2013
Filesize: 2.01 MB
Downloads: 376

Bell Laboratories Record.  Contributed by Chuck Hensley.

66May BLR P159 Expanding 101ESS 66May BLR P159 Expanding 101ESS

Date added: 06/19/2013
Date modified: 06/19/2013
Filesize: 1.71 MB
Downloads: 495

Bell Laboratories Record.  Contributed by Chuck Hensley.

68Aug BLR P238 Coin Level Detector 68Aug BLR P238 Coin Level Detector

Date added: 06/19/2013
Date modified: 06/19/2013
Filesize: 562.58 kB
Downloads: 393

Bell Laboratories Record.  Contributed by Chuck Hensley.

68Nov BLR P346 Protection For Receivers 104A Varistor 68Nov BLR P346 Protection For Receivers 104A Varistor

Date added: 06/19/2013
Date modified: 06/19/2013
Filesize: 878.47 kB
Downloads: 596

Bell Laboratories Record.  Contributed by Chuck Hensley.

68Oct BLR P283 Evolution Of PICTUREPHONE 68Oct BLR P283 Evolution Of PICTUREPHONE

Date added: 06/19/2013
Date modified: 06/19/2013
Filesize: 2.67 MB
Downloads: 321

Bell Laboratories Record.  Contributed by Chuck Hensley.

69Jul BLR P220 New Lightweight Receiver LB For Trimline 69Jul BLR P220 New Lightweight Receiver LB For Trimline

Date added: 06/19/2013
Date modified: 06/19/2013
Filesize: 294.82 kB
Downloads: 289

Bell Laboratories Record.  Contributed by Chuck Hensley.

69Jun BLR P138 PICTUREPHONE 69Jun BLR P138 PICTUREPHONE

Date added: 06/19/2013
Date modified: 06/19/2013
Filesize: 1.47 MB
Downloads: 464

Bell Laboratories Record.  Contributed by Chuck Hensley.

69Jun BLR P143 PICTUREPHONE Picture Model II 69Jun BLR P143 PICTUREPHONE Picture Model II

Date added: 06/19/2013
Date modified: 07/04/2013
Filesize: 1.24 MB
Downloads: 236

Bell Laboratories Record.  Contributed by Chuck Hensley.

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