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 |