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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 from Sept. 1925 - Dec. 1961 were available here:
  https://worldradiohistory.com/Bell_Laboratories_Record_Issue_Key.htm

Categories

Folder BLR Collections

Folder BLR Index

Documents

pdf 62jun BLR p202 - Quick-Connect Clip Terminal Popular

285 downloads

Download (pdf, 2.11 MB)

62jun_BLR_p202_Quick-Connect_Clip_Terminal_ocr_tci.pdf

62jun BLR p202 - Quick-Connect Clip Terminal

"Bell System installers must connect over 100,000 wires each working day- skinning insulation, placing the wire on a terminal and tightening the nut of a screw fastener. A new quick-connect clip terminal has now been developed which reduces this effort to a simple push of a hand tool." Contributed by Paul Fassbender.

pdf 62jun BLR p208 - Human Factors Engineering and Modern Communications Popular

272 downloads

Download (pdf, 1.45 MB)

62jun_BLR_p208_Human_Factors_Engineering_and_Modern_Communications_ocr_tci.pdf

62jun BLR p208 - Human Factors Engineering and Modern Communications

Contributed by Paul Fassbender.

pdf 62jun BLR p232 - BTL ad - New Wire Connector Popular

253 downloads

Download (pdf, 477 KB)

62jun_BLR_p232_BTL_ad_New_Wire_Connector_tci.pdf

62jun BLR p232 - BTL ad - New Wire Connector

Wire connector and pneumatic tool. Contributed by Paul Fassbender.

pdf 62jun BLR p216 - Digital Computer Synthesizes Human Speech Popular

338 downloads

Download (pdf, 1.15 MB)

62jun_BLR_p216_Digital_Computer_Synthesizes_Human_Speech_tci.pdf

62jun BLR p216 - Digital Computer Synthesizes Human Speech

Article includes a playable Bell Laboratories record in an issue of Bell Laboratories Record. Contributed by Paul Fassbender.

pdf 75Jan BLR p16 - Alpha and Omega of the Network Popular

805 downloads

Download (pdf, 3.10 MB)

BLR_Jan75_Alpha_and_Omega_of_the_Network_tci.pdf

75Jan BLR p16 - Alpha and Omega of the Network

Showcases some interesting consoles and telephone sets. Contributed by Paul Fassbender.

pdf 69Feb BLR P44 - Bell Laboratories Material Research Popular

447 downloads

Download (pdf, 12.63 MB)

69Feb_BLR_P44_Bell_Laboratories_Material_Research_TCI.pdf

69Feb BLR P44 - Bell Laboratories Material Research

Contributed by Chuck Hensley.

pdf 62sep BLR P297 1A Line Concentrator Popular

254 downloads

Download (pdf, 1.71 MB)

62sep_BLR_P297_1A_Line_Concentrator_tci.pdf

62sep BLR P297 1A Line Concentrator

Contributed by Chuck Hensley.

pdf 62oct BLR P332 Industrial Designer Role Purpose Popular

242 downloads

Download (pdf, 1.61 MB)

62oct_BLR_P332_Industrial_Designer_Role_Purpose_tci.pdf

62oct BLR P332 Industrial Designer Role Purpose

Contributed by Chuck Hensley.

pdf 62jul BLR P232 TWX Goes Dial Popular

285 downloads

Download (pdf, 1.76 MB)

62jul_BLR_P232_TWX_Goes_Dial_tci.pdf

62jul BLR P232 TWX Goes Dial

Contributed by Chuck Hensley.

pdf 50jan BLR Vol XXVIII No. 1 Popular

483 downloads

Download (pdf, 23.52 MB)

50jan_BLR_Vol.XXVIII_No_1_tci.pdf

50jan BLR Vol XXVIII No. 1

Contributed by Chuck Hensley.

Contents:
   VIBRATING REED SELECTORS FOR MOBILE TELEPHONE SYSTEMS
   THE ORIGINAL DIAL PULSE REGISTER CIRCUIT FOR THE CROSSBAR SYSTEM NO. 5
   THE CASE OF THE BARNACLED CRYSTAL
   MURRAY HILL AUDITORIUM AS A LISTENING ROOM
   BELL LABORATORIES SERVED BY WESTERN'S NEW TELETYPEWRITER SWITCHING NETWORK
   EQUIPMENT FEATURES OF THE CABLE CARRIER SYSTEM

pdf 69Jan BLR P3 Role of Research Popular

344 downloads

Download (pdf, 6.34 MB)

69Jan_BLR_P3_Role_of_Research_tci.pdf

69Jan BLR P3 Role of Research

Contributed by Chuck Hensley.

pdf 56June BLR P201 Mechanized Memory Popular

511 downloads

Download (pdf, 1.49 MB)

56June_BLR_P201_Mechanized_Memory.pdf

56June BLR P201 Mechanized Memory

Bell Laboratories Record Magazine.  Contributed by Chuck Hensley

pdf 51Mar BLR P115 - W-R-J-M Popular

810 downloads

Download (pdf, 348 KB)

51Mar_BLR_P115_W-R-J-M_ocr.pdf

51Mar BLR P115 - W-R-J-M

WRJM - Standardized letters for party lines with two- and four-party service. Adopted on Oct. 28, 1912. [JMRW] Bell Laboratories Record.  Contributed by Chuck Hensley.

pdf 68Aug BLR P222 Polygrid For AUTOVON Popular

1011 downloads

Download (pdf, 1008 KB)

68Aug_BLR_P222_Polygrid_for_AUTOVON.pdf

68Aug BLR P222 Polygrid For AUTOVON

Bell Labs Record. Contributed by Chuck Hensley.

pdf 68Apr BLR Cover AUTOVON Set Popular

688 downloads

Download (pdf, 226 KB)

68Apr_BLR_Cover_AUTOVON_Set.pdf

68Apr BLR Cover AUTOVON Set

Bell Labs Record.  Article on page 106.  Contributed by Chuck Hensley.

pdf 68Apr BLR P106 AUTOVON Popular

2093 downloads

Download (pdf, 1.21 MB)

68Apr_BLR_P106_AUTOVON.pdf

68Apr BLR P106 AUTOVON

Bell Labs Record.  Contributed by Chuck Hensley.

pdf 70Dec BLR P318 - A Decade Of ESS Popular

873 downloads

Download (pdf, 1.93 MB)

70Dec_BLR_P318_Decade_of_ESS_AUTOVON.pdf

70Dec BLR P318 - A Decade Of ESS

Bell Labs Record.  Includes AUTOVON.  Contributed by Chuck Hensley.

pdf 26Jun BLR P137 Vacuum Tubes Manufacture Popular

1757 downloads

Download (pdf, 1.41 MB)

26Jun_BLR_P137_Vacuum_Tubes_Manufacture.pdf

26Jun BLR P137 Vacuum Tubes Manufacture

Bell Labs Record.  Contributed by Chuck Hensley. 

pdf 77Mar BLR P79 - Com Key - 718 1434 and 2152 KTS Popular

1848 downloads

Download (pdf, 1.80 MB)

77Mar_BLR_P79_COMKEY_718_1434_2152.pdf

77Mar BLR P79 - Com Key - 718 1434 and 2152 KTS

ComKey. Bell Labs Record. Contributed by Chuck Hensley.

pdf 77Nov BLR P271 HORIZON PBX Popular

1627 downloads

Download (pdf, 1.19 MB)

77Nov_BLR_P271_HORIZON_PBX.pdf

77Nov BLR P271 HORIZON PBX

Bell Labs Record. Contributed by Chuck Hensley.

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Thanks for new documents from Bruce Patterson, Jon Kolger, Paul Ivester, Len Hicken, Paul Fassbender, Fred Haynes, Kurt Rudolph, Wade ("Kellogg KITT"), the Connections Museum, Rick Walsh, Jeff Lamb, Jeremy Walters, Mark Cuccia, Alan David, Harry Joseph, Charlie Terry, Karl Brose, Dennis Hock, Tim Griffin, Remco Enthoven, and Steve Cichorsky.

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