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 ]

51Dec BLR P545 Adjusting C Ringer 51Dec BLR P545 Adjusting C Ringer

Date added: 03/18/2013
Date modified: 03/18/2013
Filesize: 822.73 kB
Downloads: 235

Contributed by Chuck Hensley.

51Jan BLR P32 WECo Indianapolis 51Jan BLR P32 WECo Indianapolis

Date added: 03/18/2013
Date modified: 03/18/2013
Filesize: 418.23 kB
Downloads: 1208

Contributed by Chuck Hensley.

51Nov BLR P511 500 Transmission 425A Network 51Nov BLR P511 500 Transmission 425A Network

Date added: 03/18/2013
Date modified: 03/18/2013
Filesize: 444.07 kB
Downloads: 372

Contributed by Chuck Hensley.

51Oct BLR P460 740E PBX 51Oct BLR P460 740E PBX

Date added: 03/18/2013
Date modified: 07/07/2013
Filesize: 1.27 MB
Downloads: 551

Bell Labs Record.  Contributed by Chuck Hensley.

51Oct BLR P471 500 Ringer C-type 51Oct BLR P471 500 Ringer C-type

Date added: 03/18/2013
Date modified: 03/18/2013
Filesize: 615.33 kB
Downloads: 481

Contributed by Chuck Hensley.

51Sep BLR P414 500 Set Tuffnell 51Sep BLR P414 500 Set Tuffnell

Date added: 03/18/2013
Date modified: 03/18/2013
Filesize: 818.79 kB
Downloads: 333

Contributed by Chuck Hensley.

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

Date added: 03/16/2013
Date modified: 03/16/2013
Filesize: 572.94 kB
Downloads: 367

Bell Labs Record.  Contributed by Chuck Hensley. 

26mar BLR P31 Protective Finish 26mar BLR P31 Protective Finish

Date added: 03/15/2013
Date modified: 03/15/2013
Filesize: 538.75 kB
Downloads: 287

Bell Labs Record.  Contributed by Chuck Hensley. 

27aug BLR P427 Dial Tester 27aug BLR P427 Dial Tester

Date added: 03/15/2013
Date modified: 03/15/2013
Filesize: 682.07 kB
Downloads: 381

Bell Labs Record.  Contributed by Chuck Hensley. 

27jan BLR P155 Accelerated Testing 27jan BLR P155 Accelerated Testing

Date added: 03/15/2013
Date modified: 03/15/2013
Filesize: 923.22 kB
Downloads: 268

Bell Labs Record.  Contributed by Chuck Hensley. 

28aug BLR P399 740A PBX 28aug BLR P399 740A PBX

Date added: 03/15/2013
Date modified: 03/15/2013
Filesize: 820.17 kB
Downloads: 300

Bell Labs Record.  Contributed by Chuck Hensley. 

28oct BLR P44 Dialing Errors 28oct BLR P44 Dialing Errors

Date added: 03/15/2013
Date modified: 03/15/2013
Filesize: 474.81 kB
Downloads: 257

Bell Labs Record.  Contributed by Chuck Hensley. 

29dec BLR P162 Lacquering Plating 29dec BLR P162 Lacquering Plating

Date added: 03/15/2013
Date modified: 03/15/2013
Filesize: 908.59 kB
Downloads: 250

Bell Labs Record.  Contributed by Chuck Hensley. 

29jan BLR P203 Operator Headset 29jan BLR P203 Operator Headset

Date added: 03/15/2013
Date modified: 03/15/2013
Filesize: 824.74 kB
Downloads: 422

Bell Labs Record.  Contributed by Chuck Hensley. 

29nov BLR P113 Telephone Ringing 29nov BLR P113 Telephone Ringing

Date added: 03/15/2013
Date modified: 03/15/2013
Filesize: 1.16 MB
Downloads: 272

Bell Labs Record.  Contributed by Chuck Hensley. 

29oct BLR P73 Toll Calls 29oct BLR P73 Toll Calls

Date added: 03/15/2013
Date modified: 03/15/2013
Filesize: 778.1 kB
Downloads: 337

Bell Labs Record.  Contributed by Chuck Hensley. 

30aug BLR P586 Apparatus Springs 30aug BLR P586 Apparatus Springs

Date added: 03/15/2013
Date modified: 03/15/2013
Filesize: 703.91 kB
Downloads: 238

Bell Labs Record.  Contributed by Chuck Hensley. 

30dec BLR P175 Apparatus Finishes 30dec BLR P175 Apparatus Finishes

Date added: 03/15/2013
Date modified: 03/15/2013
Filesize: 812.42 kB
Downloads: 284

Bell Labs Record.  Contributed by Chuck Hensley. 

30jun BLR P418 Die Casting 30jun BLR P418 Die Casting

Date added: 03/15/2013
Date modified: 03/15/2013
Filesize: 838.02 kB
Downloads: 238

Bell Labs Record.  Contributed by Chuck Hensley. 

30may BLR P416 Residence PBX - 740-C 30may BLR P416 Residence PBX - 740-C

Date added: 03/15/2013
Date modified: 11/05/2013
Filesize: 1007.26 kB
Downloads: 281

Bell Labs Record.  740C PBX.  Contributed by Chuck Hensley. 

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