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 were available here:
  http://www.americanradiohistory.com/Bell_Laboratories_Record_Issue_Key.htm

Categories

Documents

pdf 60Nov BLR P433 Spring Cords

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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

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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 112 downloads

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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

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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

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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

By 97 downloads

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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

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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

By 98 downloads

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61Sep_BLR_P313_Tone_Calling_Versatility.pdf

Bell Laboratories Record. Contributed by Chuck Hensley.

pdf 62Jun BLR P220 Single Slot Coin Set Trial Norfolk

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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 62Mar BLR P75 Low Speed Data Set Popular

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62Mar_BLR_P75_Low_Speed_Data_Set.pdf

62Mar BLR P75 Low Speed Data Set

Bell Laboratories Record. Contributed by Chuck Hensley.

pdf 62Oct BLR P327 Crossbar CENTREX Service 5Xbar Popular

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62Oct_BLR_P327_Crossbar_CENTREX_Service_5Xbar.pdf

62Oct BLR P327 Crossbar CENTREX Service 5Xbar

Bell Labs Record.  Contributed by Chuck Hensley.

pdf 63Aug BLR P269 TouchTone Card Dialer Trial Greensburg Findlay Popular

By 147 downloads

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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.

pdf 63Aug BLR P273 Trimline Ending Dial In Handset Trials

By 92 downloads

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63Aug_BLR_P273_Trimline_Ending_Dial_in_Handset_Trials.pdf

63Aug BLR P273 Trimline Ending Dial In Handset Trials

Bell Laboratories Record. Contributed by Chuck Hensley.

pdf 63Jan BLR P12 PBX Range Charts Popular

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63Jan_BLR_P12_PBX_Range_Charts.pdf

Bell Laboratories Record. Contributed by Chuck Hensley.

pdf 63Jan BLR P2 FM Data Set

By 85 downloads

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63Jan_BLR_P2_FM_Data_Set.pdf

63Jan BLR P2 FM Data Set

Bell Laboratories Record. Contributed by Chuck Hensley.

pdf 63Jun BLR P218 Home Interphone Popular

By 169 downloads

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63Jun_BLR_P218_Home_Interphone.pdf

63Jun BLR P218 Home Interphone

Bell Laboratories Record. Contributed by Chuck Hensley.

pdf 63Jun BLR P237 PBX Consoles Popular

By 314 downloads

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63Jun_BLR_P237_PBX_Consoles.pdf

63Jun BLR P237 PBX Consoles

Bell Laboratories Record. Contributed by Chuck Hensley.

pdf 63Nov BLR P374 101ESS Popular

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63Nov_BLR_P374_101ESS.pdf

63Nov BLR P374 101ESS

Bell Laboratories Record.  Contributed by Chuck Hensley.

pdf 63Oct BLR P354 Testing TouchTone Set Popular

By 259 downloads

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63Oct_BLR_P354_Testing_TouchTone_Set.pdf

63Oct BLR P354 Testing TouchTone Set

Bell Laboratories Record. Contributed by Chuck Hensley.

pdf 64Apr BLR P114 PICTUREPHONE Service Experiments Popular

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64Apr_BLR_P114_PICTUREPHONE_Service_Experiments.pdf

64Apr BLR P114 PICTUREPHONE Service Experiments

Bell Labs Record. Contributed by Chuck Hensley.

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