pdf Bell System Anti-Sidetone Equipment, 1952 Popular
By Paul F 2804 downloads
Bell_System_Anti-Sidetone_Equipment_Lesson_XIII_1952_tci_ocr.pdf
Lesson XIII, Elementary Correspondence Course, Bell Tel. Co. of PA, Diamond State Tel. Co. 1952 view highlights 300- and 500-type phone circuits. Features of the "new" 500-type sets. Contributed by Paul Fassbender.
New User?
Read the articles under "Introduction" in the black menu bar above.
Recent Contributors
Thanks for new documents from Tim Fox, Andrew Cook, Steph Kerman, Jason Anderson, Doug Duffy, Bruce Patterson, Jeremy Walters, Nick Hunseder, Ed Burnett, Ralph Meyer, Shane Young, David Brown, the Connections Museum, Paul Fassbender, Lou Maffei, Rick Thoensen, Sheila Flory, Tom Hesson, Jim Hurtle, Ed Palazzo, Remco Enthoven, Jon Kolger, Paul Ivester, and Len Hicken.
Please send a file to add your name to this list!
Who's online
We have 781 guests online