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

By 1075 downloads

Download (pdf, 451 KB)

CD-81719-01_4A_and_Appendices_1B_2D_3D_4D.pdf

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

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

New User?

Read the articles under "Introduction" in the black menu bar above.

Recent Contributors

Thanks for new documents from Jim Hurtle, Ed Palazzo, Paul Fassbender, Bruce Patterson, Remco Enthoven, Jon Kolger, Paul Ivester, Len Hicken, Fred Haynes, Kurt Rudolph, Wade ("Kellogg KITT"), the Connections Museum, Rick Walsh, Jeff Lamb, Jeremy Walters, Alan David, Dennis Hock, and Tim Griffin.

Please send a file to add your name to this list!

Who's online

We have 443 guests online