pdf 40aug BLR p369 321A Loudspeaking Tel Set and 2A Key Tel System Popular

By 776 downloads

Download (pdf, 6.73 MB)

40aug_BLR_p369_2A_Key_Tel_Sys_and_321_Loudspeaking_Tel_Set_A4.pdf

40aug BLR p369 321A Loudspeaking Tel Set and 2A Key Tel System

August 1941 Bell Labs Record.  Contributed by Steve Cichorsky.

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 1014 guests online