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Details for CD-81719-01 4A And Appendices 1B 2D 3D 4D

CD-81719-01 4A And Appendices 1B 2D 3D 4D
PropertyValue
Name:CD-81719-01 4A And Appendices 1B 2D 3D 4D
Description:

Signaling Circuit 404 and 405, Dial tone generator for PBX "Touch-Tone" Calling.  Contributed by John Novack.

Filename:CD-81719-01_4A_and_Appendices_1B_2D_3D_4D.pdf
Filesize: 451.51 kB
Filetype:pdf (Mime Type: application/pdf)
Creator:paul-f
Created On: 02/06/2014 08:46
Hits:1533 Hits
Last updated on: 02/06/2014 08:50

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Telephone Collectors International was incorporated under the laws of the state of Kansas on May 13, 1986. The goal of the organization is "to educate the public, as well as the members of the Corporation, regarding the history of telephony, the value of old telephones and related items, their collectability and preservation; to research telephone history and publish and provide literature thereon; to promote the public exhibition of old telephones and related items; and to promote common courtesies and guidelines for use by the public." Telephone Collectors International is recognized by the Internal Revenue Service as a 501(c)(3) organization, to which U.S. tax deductible contributions can be made.