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 ]

69Mar BLR P77 Metroliner Train Telephones 69Mar BLR P77 Metroliner Train Telephones

Date added: 06/19/2013
Date modified: 06/19/2013
Filesize: 2.19 MB
Downloads: 507

Bell Laboratories Record.  Contributed by Chuck Hensley.

69Nov BLR P320 LED Telephone Lamps 69Nov BLR P320 LED Telephone Lamps

Date added: 06/19/2013
Date modified: 06/19/2013
Filesize: 1.67 MB
Downloads: 283

Bell Laboratories Record.  Contributed by Chuck Hensley.

69Oct BLR P293 Dialtone First 69Oct BLR P293 Dialtone First

Date added: 06/19/2013
Date modified: 06/19/2013
Filesize: 1.11 MB
Downloads: 526

Bell Laboratories Record.  Contributed by Chuck Hensley.

69Sep BLR P280 Code-Com Telephone For Handicapped 69Sep BLR P280 Code-Com Telephone For Handicapped

Date added: 06/19/2013
Date modified: 06/19/2013
Filesize: 1.08 MB
Downloads: 285

And volume control (three steps) handset for coin phones.  Field trials.  Bell Laboratories Record.  Contributed by Chuck Hensley.

58Aug BLR P352 Bedroom Set Prototype Princess 58Aug BLR P352 Bedroom Set Prototype Princess

Date added: 06/15/2013
Date modified: 06/15/2013
Filesize: 215.58 kB
Downloads: 312

Bell Laboratories Record.  Contributed by Chuck Hensley.

58Mar BLR P81 6A KTS 58Mar BLR P81 6A KTS

Date added: 06/15/2013
Date modified: 06/15/2013
Filesize: 1.62 MB
Downloads: 543

Bell Laboratories Record.  Contributed by Chuck Hensley.

59Dec BLR P464 Single Slot Coin Phone Trial Woodbridge 59Dec BLR P464 Single Slot Coin Phone Trial Woodbridge

Date added: 06/15/2013
Date modified: 06/15/2013
Filesize: 1.37 MB
Downloads: 297

Bell Laboratories Record.  Contributed by Chuck Hensley.

67Apr BLR P122 Jacketed Station Wire 67Apr BLR P122 Jacketed Station Wire

Date added: 06/15/2013
Date modified: 06/15/2013
Filesize: 648.03 kB
Downloads: 1369

Bell Laboratories Record.  Contributed by Chuck Hensley.

67Dec BLR P374 New Picturephone Model II 67Dec BLR P374 New Picturephone Model II

Date added: 06/15/2013
Date modified: 06/15/2013
Filesize: 1.01 MB
Downloads: 405

Bell Laboratories Record.  Contributed by Chuck Hensley.

67Feb BLR P49 800A PBX 67Feb BLR P49 800A PBX

Date added: 06/15/2013
Date modified: 06/15/2013
Filesize: 1.66 MB
Downloads: 495

Bell Laboratories Record.  Contributed by Chuck Hensley.

67Jun BLR P202 Experimental Lineless (Cordless) Telephone 67Jun BLR P202 Experimental Lineless (Cordless) Telephone

Date added: 06/15/2013
Date modified: 06/19/2013
Filesize: 609.22 kB
Downloads: 770

Bell Laboratories Record.  Contributed by Chuck Hensley.

67May BLR P161 OSP Drop Closure 67May BLR P161 OSP Drop Closure

Date added: 06/15/2013
Date modified: 06/15/2013
Filesize: 395.12 kB
Downloads: 517

Bell Laboratories Record.  Contributed by Chuck Hensley.

68Apr BLR P130 Experimental Electronic Telephone 68Apr BLR P130 Experimental Electronic Telephone

Date added: 06/15/2013
Date modified: 06/15/2013
Filesize: 415.79 kB
Downloads: 280

Bell Laboratories Record.  Contributed by Chuck Hensley.

68Feb BLR P40 Bell System History 1 68Feb BLR P40 Bell System History 1

Date added: 06/15/2013
Date modified: 06/15/2013
Filesize: 2.57 MB
Downloads: 356

Bell Laboratories Record.  Contributed by Chuck Hensley.

68Jan BLR P9 60 Years Of PBX Development 68Jan BLR P9 60 Years Of PBX Development

Date added: 06/15/2013
Date modified: 06/15/2013
Filesize: 1.91 MB
Downloads: 787

Bell Laboratories Record.  Contributed by Chuck Hensley.

68Mar BLR P77 Bell System History 2 68Mar BLR P77 Bell System History 2

Date added: 06/15/2013
Date modified: 06/15/2013
Filesize: 1.88 MB
Downloads: 256

Bell Laboratories Record.  Contributed by Chuck Hensley.

57Sep BLR P348 500 Set Distinctive Ringing 57Sep BLR P348 500 Set Distinctive Ringing

Date added: 06/13/2013
Date modified: 06/13/2013
Filesize: 1.16 MB
Downloads: 425

Bell Laboratories Record. Contributed by Chuck Hensley.

58Apr BLR P149 New Booth 58Apr BLR P149 New Booth

Date added: 06/13/2013
Date modified: 06/13/2013
Filesize: 163.56 kB
Downloads: 287

Bell Laboratories Record. Contributed by Chuck Hensley.

58Aug BLR P308 New Station Apparatus Tests: Single Slot Payphone, Repertory Dialer 58Aug BLR P308 New Station Apparatus Tests: Single Slot Payphone, Repertory Dialer

Date added: 06/13/2013
Date modified: 12/27/2013
Filesize: 1.26 MB
Downloads: 238

Dialer capacity is 50 thirteen-digit numbers on dotched circular discs.  Bell Laboratories Record. Contributed by Chuck Hensley.

59Apr BLR P145 New Protector 59Apr BLR P145 New Protector

Date added: 06/13/2013
Date modified: 06/13/2013
Filesize: 832.66 kB
Downloads: 524

Bell Laboratories Record. Contributed by Chuck Hensley.

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