Folder 300 - 379 Divisions - Transmission Sys & Testing
Categories
Folder 331 Division - Transmission Noise Testing
Central Office PBX Customer Lines and Equipment
Folder 332 Division - Voice-Frequency Equipment
Telephone Repeaters, Pilot Wire Regulators, Echo Suppressors, Composite Sets and Associated Equipment
Folder 362 Division - Type N, 0, and ON Carrier
362 Division - Type N, 0, and ON Carrier Telephone Systems and Associated Equipment Components
New User?
Read the articles under "Introduction" in the black menu bar above.
Recent Contributors
Thanks for new documents from Ed Palazzo, Bruce Patterson, Jon Kolger, Paul Ivester, Len Hicken, Paul Fassbender, Fred Haynes, Kurt Rudolph, Wade ("Kellogg KITT"), the Connections Museum, Rick Walsh, Jeff Lamb, Jeremy Walters, Mark Cuccia, Alan David, Harry Joseph, Charlie Terry, Karl Brose, Dennis Hock, Tim Griffin, Remco Enthoven, and Steve Cichorsky.
Please send a file to add your name to this list!
Who's online
We have 551 guests online