Most things are simple IF you already understand them. It's explaining something in a way that is easy to understand, which is hard. Frank Harrell (March, 2013) |
Div | Currently includes parts of... | References | |
![]() |
000 | 010 081 | General methods |
![]() |
100 | 167 | Power |
![]() |
200 | Switching Systems | |
![]() |
300 | 363 | Transmission, signaling systems and testing |
![]() |
400 | 460 461 462 463 | Customer Equipment |
![]() |
500 | 500 501 502 503 506 508 510 512 514 518 529 | Station Equipment (Telephone Sets) |
![]() |
600 | ||
![]() |
700 | ||
![]() |
800 | ||
![]() |
900 |
Name | size | Contains | ||
![]() | Instruction Manuals | - | Instruction Pamphlets for customers | |
![]() | Miscellaneous | - | Other things (books) | |
![]() | 000-000-005 | 40k | Master Numerical Index (Description of first order group codes) (now with hyperlinks to available sections) | |
![]() | 460-000-006 | 10.8m | Alphabetic-Numeric Index, (Station, Key, PBX, Private Service Systems) | |
![]() | Set Numbers | 35k | A listing of all Western Electric set numbers (Under development) | |
![]() | 100 Years in the Bell System | 4.0m | Western Electric magazine | |
![]() | Phone Number Label templet | 19k | Excel spreadsheet | |
![]() | Bell System Picturephone ® | 31m | Photo and magazine about the Picturephone ® | |
![]() | About this site | and What are Bell System Practices? | ||
![]() | HighResVersions | If the PDF files in the sections above are not clear enough, higher resolution versions including the original 300dpi scans are available here |