Click here for the Bruce Crawford Memorial Switching Documentation Library list view. (note: please be patient, this will take some time to show: about 1 minute)

The Bruce Crawford Memorial Switching Documentation Library

Bruce Crawford - Founder of Switchers' Quarterly

Links to other sources of BSP's

Documents relating to C*NET - The VOIP-based Collectors' Network.

Help preserve the history of telephony. Send your original writing works including research projects, interviews, anecdotes & stories, etc.

Technical Practices from ITT, Kellogg and Cortelco

Click here for the Wiring Diagrams & Technical Library list view.

by Manufacturer and Model

Hint: Also check BSPs, GSPs and technical bulletins for wiring options and detailed technical information. Search for the phone model and "wiring" or "schematic." (e.g. North 5H6 wiring)

This is a library of basic schematics, wiring diagrams and other information that can be useful to anyone interested in restoring or repairing vintage telephone equipment. Generally, the information in the Library is limited to equipment that was made prior to 1980.

If you can't find what you are looking for, use the Contact Us option here or on the Menu Bar. We will make an attempt to locate it and add it to the library.

The Wiring Diagrams & Technical Library can easily be found through the following link www.telephonecollectors.info/library

Hint: Clicking on Browse Library / Wiring Diagrams in the Menu Bar at any time gives a quick reference list of popular manufacturers.

To see all manufacturers, browse the complete list below.

Click here for the most important German telephone schematics (W28, W36, W38, W48, W58, W63a).