Folder MOO and X- Docs - 1920s

Method of Operation.

Documents

Select Toggle Title Date Download
pdf BT-512086 I1 - MOO Make busy circuit (193 downloads) Popular Download (pdf, 128 KB)
pdf BT-502985 I1 - MOO Line circuit Long PBX Line (172 downloads) Popular Download (pdf, 316 KB)
pdf BT-502734 I1 - MOO District Selector circuit (203 downloads) Popular Download (pdf, 1.85 MB)
pdf BT-502733 I1 appendix 2 - MOO Line finder and district selector (177 downloads) Popular Download (pdf, 134 KB)
pdf BT-502625 I2 - MOO Automatic routine of office selectors (174 downloads) Popular Download (pdf, 1.24 MB)
pdf BT-502494 I3 - MOO Line circuit (211 downloads) Popular Download (pdf, 1.70 MB)
pdf BT-502493 I3 - MOO District selector Circuit (214 downloads) Popular Download (pdf, 1.36 MB)
pdf BT-502172 I2 - MOO Selector circuit (173 downloads) Popular Download (pdf, 563 KB)
pdf BT--502171 I2 - MOO Selector incoming from local test desk (250 downloads) Popular Download (pdf, 330 KB)
pdf BT-502167 I2 - MOO Final selector Circuit (248 downloads) Popular Download (pdf, 411 KB)
pdf BT-501457 I4 - MOO Routine test of subscribers district selectors (317 downloads) Popular Download (pdf, 1.33 MB)
pdf BT-501456 I1 - MOO Testing circuit (233 downloads) Popular Download (pdf, 62 KB)
pdf BT-501455 I2 - MOO Test circuit (244 downloads) Popular Download (pdf, 383 KB)
pdf BT-501445 I1 - MOO testing circuit (248 downloads) Popular Download (pdf, 755 KB)
pdf BT-01236 I3 - MOO Automatic routine test circuit (237 downloads) Popular Download (pdf, 1.31 MB)
pdf BT-501123 I2 - MOO Test circuit Automatic routine test of District selectors (232 downloads) Popular Download (pdf, 1.80 MB)
pdf BT-501043 I2 - MOO Trunk circuits (261 downloads) Popular Download (pdf, 336 KB)
pdf BT-501002 I5 - MOO Panel system sender recording key and testing cord circuit (257 downloads) Popular Download (pdf, 1009 KB)
pdf BT-470662 I1 - MOO Line Circuit (213 downloads) Popular Download (pdf, 280 KB)
pdf BT-441152 I1 - MOO Interoffice Incoming selector circuit (245 downloads) Popular Download (pdf, 920 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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