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

Documents

pdf 60Mar BLR P82 Push Button Dialing Media Hamden Elgin Popular

By 399 downloads

Download (pdf, 2.03 MB)

60Mar_BLR_P82_Push_Button_Dialing_Media_Hamden_Elgin.pdf

60Mar BLR P82 Push Button Dialing Media Hamden Elgin

Bell Laboratories Record. Contributed by Chuck Hensley.

pdf 60Nov BLR P433 Spring Cords Popular

By 356 downloads

Download (pdf, 298 KB)

60Nov_BLR_P433_Spring_Cords.pdf

60Nov BLR P433 Spring Cords

Bell Laboratories Record. Contributed by Chuck Hensley.

pdf 61Jan BLR P14 Field Testing Electronic Tone Ringer Tel Crystal Lake Popular

By 350 downloads

Download (pdf, 1000 KB)

61Jan_BLR_P14_Field_Testing_Electronic_Ringer_Tel_Crystal_Lake.pdf

61Jan BLR P14 Field Testing Electronic Tone Ringer Tel Crystal Lake

Bell Laboratories Record. Contributed by Chuck Hensley.

pdf 61Jul BLR P240 Overseas Dialing Popular

By 362 downloads

Download (pdf, 1.81 MB)

61Jul_BLR_P240_Overseas_Dialing.pdf

61Jul BLR P240 Overseas Dialing

Bell Laboratories Record. Contributed by Chuck Hensley.

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

By 531 downloads

Download (pdf, 528 KB)

61Jun_BLR_P220_PBX_Speeding_Calls_756A_DSS.pdf

61Jun BLR P220 PBX Speeding Calls 756A DSS

Bell Labs Record.  Contributed by Chuck Hensley.

pdf 61May BLR P161 Pushbutton PBX 608A Popular

By 692 downloads

Download (pdf, 1.54 MB)

61May_BLR_P161_Pushbutton_PBX_608A.pdf

61May BLR P161 Pushbutton PBX 608A

Bell Laboratories Record. Contributed by Chuck Hensley.

pdf 61May BLR P185 Trimline Contour Field Trial Richmond VA Popular

By 423 downloads

Download (pdf, 223 KB)

61May_BLR_P185_Trimline_Contour_Field_Trial_Richmond_VA.pdf

61May BLR P185 Trimline Contour Field Trial Richmond VA

Bell Laboratories Record. Contributed by Chuck Hensley.

pdf 61Oct BLR P350 Automatic Card Dialer 40A Popular

By 628 downloads

Download (pdf, 905 KB)

61Oct_BLR_P350_Automatic_Card_Dialer_40A.pdf

61Oct BLR P350 Automatic Card Dialer 40A

Bell Laboratories Record. Contributed by Chuck Hensley.

pdf 61Sep BLR P313 Touch-Tone Calling Versatility Popular

By 383 downloads

Download (pdf, 1.04 MB)

61Sep_BLR_P313_Tone_Calling_Versatility.pdf

Bell Laboratories Record. Contributed by Chuck Hensley.

pdf 62jul BLR P232 TWX Goes Dial Popular

By 404 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 62jun BLR p202 - Quick-Connect Clip Terminal Popular

By 385 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

By 379 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 p216 - Digital Computer Synthesizes Human Speech Popular

By 434 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 62Jun BLR P220 Single Slot Coin Set Trial Norfolk Popular

By 352 downloads

Download (pdf, 308 KB)

62Jun_BLR_P220_Single_Slot_Coin_Set_Trial_Norfolk.pdf

62Jun BLR P220 Single Slot Coin Set Trial Norfolk

Bell Laboratories Record. Contributed by Chuck Hensley.

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

By 347 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 62Mar BLR P74 - Low Speed Data Set Popular

By 400 downloads

Download (pdf, 2.02 MB)

62Mar_BLR_P74_Low_Speed_Data_Set.pdf

62Mar BLR P74 - Low Speed Data Set

Bell Laboratories Record. Contributed by Chuck Hensley.

pdf 62Oct BLR P327 Crossbar CENTREX Service 5Xbar Popular

By 617 downloads

Download (pdf, 1.72 MB)

62Oct_BLR_P327_Crossbar_CENTREX_Service_5Xbar.pdf

62Oct BLR P327 Crossbar CENTREX Service 5Xbar

Bell Labs Record.  Contributed by Chuck Hensley.

pdf 62oct BLR P332 Industrial Designer Role Purpose Popular

By 343 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 62sep BLR P297 1A Line Concentrator Popular

By 363 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 63Aug BLR P269 TouchTone Card Dialer Trial Greensburg Findlay Popular

By 494 downloads

Download (pdf, 1.36 MB)

63Aug_BLR_P269_TouchTone_Card_Dialer_Trial_Greensburg_Findlay.pdf

63Aug BLR P269 TouchTone Card Dialer Trial Greensburg Findlay

July - August 1963.  Bell Laboratories Record. Contributed by Chuck Hensley.

New User?

Read the articles under "Introduction" in the black menu bar above.

Recent Contributors

Thanks for new documents from Jim Hurtle, Ed Palazzo, Paul Fassbender, Bruce Patterson, Remco Enthoven, Jon Kolger, Paul Ivester, Len Hicken, Fred Haynes, Kurt Rudolph, Wade ("Kellogg KITT"), the Connections Museum, Rick Walsh, Jeff Lamb, Jeremy Walters, Alan David, Dennis Hock, and Tim Griffin.

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