Folder 852 Division - (500-series Performance)

Exchange Area and Operator Services Transmission

Documents

pdf 852-220-100-i1-500 Series Sets General Description Tl Popular

By 868 downloads

Download (pdf, 2.77 MB)

852-220-100-i1-500_Series_Sets_General_Description_tl.pdf

852-220-100-i1-500 Series Sets General Description Tl
May 1952.  500 series design objectives, mechanical, electrical and transmission features, noise crosstalk and sidetone considerations in design and performance.

pdf 852-220-101-i1-500 Series Transmission A B J K Sets Tl Popular

By 892 downloads

Download (pdf, 2.07 MB)

852-220-101-i1-500_Series_Transmission_A_B_J_K_Sets_tl.pdf

852-220-101-i1-500 Series Transmission A B J K Sets Tl
May 1952. Electrical characteristics and transmission performance of the 500 and 501 A, B, J and K sets.  Crosstalk and sidetone considerations and effects of longitudinal noise and set unbalance.  (With and without 311A equalizer.)  Circuit description and diagram.

pdf 852-220-102-i2-500 Series Transmission C D Sets Small-File Tl Popular

By 916 downloads

Download (pdf, 1.57 MB)

852-220-102-i2-500_Series_Transmission_C_D_Sets_Small-File_tl.pdf

852-220-102-i2-500 Series Transmission C D Sets Small-File Tl
October 1956.  Electrical characteristics and transmission performance of the 500 and 501 C and D sets.  Crosstalk and sidetone considerations and effects of longitudinal noise and set unbalance.  (Using 425B network with varistors.)  Circuit description and diagram.

pdf 852-220-102-i2-500 Series Transmission C D Sets Tl Popular

By 1048 downloads

Download (pdf, 5.03 MB)

852-220-102-i2-500_Series_Transmission_C_D_sets_tl.pdf

852-220-102-i2-500 Series Transmission C D Sets Tl
October 1956.  Electrical characteristics and transmission performance of the 500 and 501 C and D sets.  Crosstalk and sidetone considerations and effects of longitudinal noise and set unbalance.  (Using 425B network with varistors.)  Circuit description and diagram.

New User?

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

Recent Contributors

Thanks for new documents from Bruce Patterson, Jon Kolger, Paul Ivester, Len Hicken, Paul Fassbender, Fred Haynes, Kurt Rudolph, Wade ("Kellogg KITT"), the Connections Museum, Rick Walsh, Jeff Lamb, Jeremy Walters, Mark Cuccia, Alan David, Harry Joseph, Charlie Terry, Karl Brose, Dennis Hock, Tim Griffin, Remco Enthoven, and Steve Cichorsky.

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

Who's online

We have 790 guests online