User contributions for Yeatesh

11 November 2007

• 11:4311:43, 11 November 2007 diff hist +308 Nm File:DTMF receiver at a No. 5 Crossbar office. (Museum of Communication, Seattle).jpg DTMF receiver at a No. 5 Crossbar office. Cover removed to show circuit boards. These receivers were used in Originating Registers to support touchtone subscriber dialing. Seen here at The Museum of Communications in Seattle, Washington. June, 2000. Tag: Imported with FileImporter
• 03:1103:11, 11 November 2007 diff hist 0 m File:Crossbar-irrp1-hy.jpg →Summary Tag: Imported with FileImporter

10 November 2007

• 22:2122:21, 10 November 2007 diff hist 0 m File:Mtf area-hy.jpg No edit summary Tag: Imported with FileImporter
• 22:2022:20, 10 November 2007 diff hist +193 Nm File:Originating Register, Number Five Crossbar Switching System (Museum of Communications, Seattle).jpg Originating Register (OR) in a No. 5 Crossbar office. Photographed at the Museum of Communications in Seattle, Washington. June, 2000. Tag: Imported with FileImporter
• 22:1822:18, 10 November 2007 diff hist +196 Nm File:Mtf area-hy.jpg Master Test Frame (MTF) area of a No. 5 Crossbar office. Photographed at the Museum of Communications in Seattle, Washimgton. June, 2000. Tag: Imported with FileImporter
• 22:1522:15, 10 November 2007 diff hist +215 Nm File:Crossbar-irrp1-hy.jpg Speacial crossbar switch used in a revertive pulse Incoming Register, at a No. 5 Crossbar office. Model 324-C, manufactured by Western Electric in May 1970. Tag: Imported with FileImporter
• 22:1322:13, 10 November 2007 diff hist +422 Nm File:Crossbar-banjo2-hy.jpg Detail of back side of a Western Electric 6-wire 100-point crossbar switch (model 324-N) showing "banjo" wiring. Note this model of crossbar switch was divided into three groups of verticals; 4, 2, and 4. The banjo wiring as seen here is continuous only w Tag: Imported with FileImporter
• 22:0522:05, 10 November 2007 diff hist +202 N File:Amapunch-hy.jpg Automatic Message Accounting (AMA) call recording machine as used in a No. 5 Crossbar office. Cover removed to show paper tape punch mechanism. Tag: Imported with FileImporter
• 02:3602:36, 10 November 2007 diff hist −22 m File:Crossbar-200pt-hy3.jpg Attempted to add copyright tag; find wiki procedure arcane or worse. Uggh. Tag: Imported with FileImporter
• 02:2402:24, 10 November 2007 diff hist 0 m File:Crossbar-200pt-hy3.jpg uploaded a new version of "w:Image:Crossbar-200pt-hy3.jpg": Crossbar switches, 200-point. View of a Line Link frame in a Crossbar 5 office. Tag: Imported with FileImporter

9 November 2007

• 13:2813:28, 9 November 2007 diff hist +81 Nm File:Crossbar-200pt-hy3.jpg Crossbar switches, 200 point. View of a Link Link frame at crossbar No. 5 office. Tag: Imported with FileImporter
• 13:2613:26, 9 November 2007 diff hist +91 Nm File:Crossbar-mini-hy2.jpg Crossbar switch. 200-point "mini-switch" variant. Tag: Imported with FileImporter
• 13:0313:03, 9 November 2007 diff hist +122 Nm File:Crossbar-hy1.jpg 100-point, 6-wire crossbar switch. Manufactured by Western Electric April, 1970. Tag: Imported with FileImporter