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Folder 536 Division - 500 Series PBX

500 Series PBX

Documents

Toggle Title Date Download
pdf 536-070-230 I1 (740 downloads) Popular Download (pdf, 116 KB)
pdf 536-070-230 i1 Oct51 - 507A, 507B PBX - Tests and Inspections Tl (693 downloads) Popular Download (pdf, 116 KB)
pdf 536-070-511 I2 (844 downloads) Popular Download (pdf, 157 KB)
pdf 536-070-511 i2 Apr57 - 507A, 507B PBX - Circuit Tests Tl (749 downloads) Popular Download (pdf, 259 KB)
pdf 536-070-512 I1 (830 downloads) Popular Download (pdf, 158 KB)
pdf 536-070-512 i1 Dec65 - 507A, 507B PBX - In-service Tests Tl (729 downloads) Popular Download (pdf, 245 KB)
pdf 536-490-110 I1 (770 downloads) Popular Download (pdf, 267 KB)
pdf 536-490-200 I4 (784 downloads) Popular Download (pdf, 135 KB)
pdf 536-490-210 I4 (718 downloads) Popular Download (pdf, 663 KB)
pdf 536-490-210 i4 Nov56 - 551A 551B 552B PBX - Install (558 downloads) Popular Download (pdf, 520 KB)
pdf 536-490-230 I3 (736 downloads) Popular Download (pdf, 159 KB)
pdf 536-490-507 I3 Aug54 - 555, 556, 557 PBX Attendant Telephone and Dial Circuits (1009 downloads) Popular Download (pdf, 153 KB)
pdf 536-490-525 I3 (641 downloads) Popular Download (pdf, 210 KB)
pdf 536-490-600 I5 (772 downloads) Popular Download (pdf, 199 KB)
pdf 536-490-660 I3 (712 downloads) Popular Download (pdf, 159 KB)
pdf 536-490-665 I5 (762 downloads) Popular Download (pdf, 143 KB)
pdf 536-490-666 I2 (765 downloads) Popular Download (pdf, 140 KB)
pdf 536-490-667 I2 (644 downloads) Popular Download (pdf, 129 KB)
pdf 536-490-667 i2 Aug54 - Ringdown and Automatic Tie Trunk Circuits - Operation Test (413 downloads) Popular Download (pdf, 182 KB)
pdf 536-520-110 i1 Nov52 - 552B 552E PBX - General Description (418 downloads) Popular Download (pdf, 492 KB)

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Recent Contributors

Thanks for new documents from Ed Palazzo, 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.

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