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Folder AT&T Specifications (pre-BSP) (by Doc #)

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4-digit all numeric codes, used before about 1930.

Documents

pdf AT&T Spec 3855 - CP Insert Mar31 Adjustments Substation Apparatus Popular

By 3082 downloads

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Spec3855_CP_Insert_Mar31_Adjustments_Substation_Apparatus.pdf

AT&T Spec 3855 - CP Insert Mar31 Adjustments Substation Apparatus
Contributed by Chuck Hensley.

pdf AT&T Spec 3855 - Mar17 Adjustments Substation Apparatus Popular

By 3250 downloads

Download (pdf, 4.49 MB)

Spec3855_Mar17_Adjustments_Substation_Apparatus.pdf

AT&T Spec 3855 - Mar17 Adjustments Substation Apparatus
Contributed by Chuck Hensley.

pdf AT&T Spec 3855 - SuppB Sep30 Adjustments Substation Apparatus Popular

By 3142 downloads

Download (pdf, 2.11 MB)

Spec3855_SuppB_Sep30_Adjustments_Substation_Apparatus.pdf

AT&T Spec 3855 - SuppB Sep30 Adjustments Substation Apparatus
Contributed by Chuck Hensley.

pdf AT&T Spec 3855 - SuppC Mar31 Adjustments Substation Apparatus Popular

By 2915 downloads

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Spec3855_SuppC_Mar31_Adjustments_Substation_Apparatus.pdf

AT&T Spec 3855 - SuppC Mar31 Adjustments Substation Apparatus
Contributed by Chuck Hensley.

pdf AT&T Spec 3859 - Aug22 - Station Wiring Plans Popular

By 3430 downloads

Download (pdf, 1.78 MB)

Spec3859_Aug22_Substation_Wiring_Plans.pdf

AT&T Spec 3859 - Aug22 - Station Wiring Plans
Specification 3859, August 1922.  Contributed by Steve Cichorsky.

pdf AT&T Spec 3859 - CP Insert Apr31 Station Wiring Plans Popular

By 2861 downloads

Download (pdf, 374 KB)

Spec3859_CP_Insert_Apr31_Station_Wiring_Plans.pdf

AT&T Spec 3859 - CP Insert Apr31 Station Wiring Plans
Contributed by Chuck Hensley.

pdf AT&T Spec 3859 - SuppB Sep30 Station Wiring Plans Popular

By 3420 downloads

Download (pdf, 11.43 MB)

Spec3859_SuppB_Sep30_Station_Wiring_Plans.pdf

AT&T Spec 3859 - SuppB Sep30 Station Wiring Plans
Contributed by Chuck Hensley.

pdf AT&T Spec 3859 Aug22 Substation Wiring Plans Ocr R Popular

By 3201 downloads

Download (pdf, 5.42 MB)

ATT_Spec_3859_Aug22_Substation_Wiring_Plans_ocr_r.pdf

AT&T Spec 3859 Aug22 Substation Wiring Plans Ocr R

Contributed by Steve Cichorsky. 

pdf AT&T Spec 4159 - CP Insert Dec24 Maintenance Automatic Electric Dials Substations Popular

By 2764 downloads

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Spec4159_CP_Insert_Dec24_Maintenance_Automatic_Electric_Dials_Substations.pdf

AT&T Spec 4159 - CP Insert Dec24 Maintenance Automatic Electric Dials Substations
Contributed by Chuck Hensley.

pdf AT&T Spec 4159 - Jan22 Maintenance AE Dials Substations Popular

By 731 downloads

Download (pdf, 2.37 MB)

ATT_Spec_4159_Jan22_Maint_AE_Dials_at_Substations_tci.pdf

AT&T Spec 4159 - Jan22 Maintenance AE Dials Substations

16 pages. January 1922. Cleaned up scan of this classic specification, including parts inspection and dial speed adjustment. Contributed by Jeff Lamb. Bookmarked by Paul Fassbender.

pdf AT&T Spec 4159 - Jan22 Maintenance Automatic Electric Dials Substations Popular

By 3512 downloads

Download (pdf, 4.61 MB)

Spec4159_Jan22_Maintenance_Automatic_Electric_Dials_Substations.pdf

AT&T Spec 4159 - Jan22 Maintenance Automatic Electric Dials Substations
Contributed by Chuck Hensley.

pdf AT&T Spec 4159 - SuppA Jun24 Maintenance Automatic Electric Dials Substations Popular

By 2933 downloads

Download (pdf, 675 KB)

Spec4159_SuppA_Jun24_Maintenance_Automatic_Electric_Dials_Substations.pdf

AT&T Spec 4159 - SuppA Jun24 Maintenance Automatic Electric Dials Substations
Contributed by Chuck Hensley.

pdf AT&T Spec 4170 - Apr22 Substation Private Branch Exchange Protector Installation Popular

By 3429 downloads

Download (pdf, 11.82 MB)

Spec4170_Apr22_Substation_Private_Branch_Exchange_Protector_Installation.pdf

AT&T Spec 4170 - Apr22 Substation Private Branch Exchange Protector Installation
Contributed by Chuck Hensley.

pdf AT&T Spec 4170 - SuppA Dec24 Substation Private Branch Exchange Protector Installation Popular

By 2890 downloads

Download (pdf, 2.55 MB)

Spec4170_SuppA_Dec24_Substation_Private_Branch_Exchange_Protector_Installation.pdf

AT&T Spec 4170 - SuppA Dec24 Substation Private Branch Exchange Protector Installation
Contributed by Chuck Hensley.

pdf AT&T Spec 4430 - Open Type Booths Tl Popular

By 2705 downloads

Download (pdf, 794 KB)

ATTSpec4430-OpenTypeBooths_tl.pdf

AT&T Spec 4430 - Open Type Booths Tl

pdf AT&T Spec 4448 Mar25 - Stations Apparatus for Deaf Subscribers Popular

By 1861 downloads

Download (pdf, 824 KB)

Spec4448_Mar25_-_Stations_Apparatus_for_Deaf_Subscribers_tci-ocr.pdf

AT&T Spec 4448 Mar25 - Stations Apparatus for Deaf Subscribers

Includes: Double Head Receiver Installations; Temporary Amplifier Installations w/ #27-A Amplifier; and Permanent Amplifier Installations w/ #23-A Amplifier and #6013-A Key. ATT. Contributed by Steve Cichorsky. Processed by Remco Enthoven and Paul Fassbender.

pdf AT&T Spec 4455 - Public Telephone Signs Tl Popular

By 3080 downloads

Download (pdf, 1.05 MB)

ATTSpec4455PubTelSigns_tl.pdf

AT&T Spec 4455 - Public Telephone Signs Tl

pdf AT&T Spec 4465 7-J And 7-K Coin Collectors Popular

By 2677 downloads

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ATT Spec No. 4465 ~ 7-J and 7-K Coin Collectors.pdf

AT&T Spec 4465 7-J And 7-K Coin Collectors

[Rescanned and bookmarked]

A. T. & T. Co.'s
Specifications No. 4465
January, 1926


STATIONS
NO. 7-J AND NO. 7-K COIN COLLECTOR
MAINTENANCE


DESCRIPTION OF COIN COLLECTOR
The #7 type coin collector is a prepayment collector for nickels only
and the illustration shown below is of the #7-J Coin Collector. The #7-K
Collector is the same as the #7-J except that it has a larger cash
compartment.

(Copyright, 1926, American Telephone and Telegraph Company)
Printed in U. S. A.

pdf AT&T Spec 4566 - CP Insert Oct31 Dial Manual CB Stations Popular

By 3069 downloads

Download (pdf, 1.42 MB)

Spec4566_CP_InsertOct31_Dial_Manual_CB_Stations.pdf

AT&T Spec 4566 - CP Insert Oct31 Dial Manual CB Stations
Contributed by Chuck Hensley.

pdf AT&T Spec 4566 - SuppB Jun30 Dial Manual CB Stations Popular

By 3055 downloads

Download (pdf, 1.48 MB)

Spec4566_SuppB_Jun30_Dial_Manual_CB_Stations.pdf

AT&T Spec 4566 - SuppB Jun30 Dial Manual CB Stations
Contributed by Chuck Hensley.

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Thanks for new documents from Shane Young, David Brown, the Connections Museum, Paul Fassbender, Lou Maffei, Rick Thoensen. Sheila Flory, Tom Hesson, Jim Hurtle, Ed Palazzo, Bruce Patterson, Remco Enthoven, Jon Kolger, Paul Ivester, Len Hicken, Fred Haynes, Kurt Rudolph, Wade ("Kellogg KITT"), Rick Walsh, and Jeff Lamb.

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