CD-81719-01 404 405 Dial Tone Generator

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Folder CD-81719-01 404 405 Dial Tone Generator

Documents

pdf CD-81719-01 4A And Appendices 1B 2D 3D 4D Popular

Published on 06 February 2014 Modified on 31 May 2020 By Anonymous 1051 downloads

Download (pdf, 451 KB)

CD-81719-01_4A_and_Appendices_1B_2D_3D_4D.pdf

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

pdf SD-81719-01 404 405 Dial Tone Generator Popular

Published on 11 November 2013 Modified on 31 May 2020 By Anonymous 1540 downloads

Download (pdf, 733 KB)

SD-81719-01_404_405_Dial_Tone_Generator.pdf

Scanned and Contributed by Paul Wills

pdf SD-81719-01 Sheet B1 - Better Scan Popular

Published on 31 May 2020 By Paul W 306 downloads

Download (pdf, 1.25 MB)

SD-81719-01-B1-better-scan.pdf

The sheet in the original document from the CIC was light so the scan was not very readable. This was an attempt to make it slightly less unreadable.

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