Uploads by Yeatesh
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For Yeatesh (talk · contributions · Move log · block log · uploads · Abuse filter log)
This special page shows all uploaded files that have not been deleted; for those see the upload log.
| Date | Name | Thumbnail | Size | Description |
|---|---|---|---|---|
| 11:43, 11 November 2007 | DTMF receiver at a No. 5 Crossbar office. (Museum of Communication, Seattle).jpg (file) | .jpg) |
246 KB | 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. |
| 22:20, 10 November 2007 | Originating Register, Number Five Crossbar Switching System (Museum of Communications, Seattle).jpg (file) | .jpg) |
533 KB | Originating Register (OR) in a No. 5 Crossbar office. Photographed at the Museum of Communications in Seattle, Washington. June, 2000. |
| 22:18, 10 November 2007 | Mtf area-hy.jpg (file) |  |
553 KB | Master Test Frame (MTF) area of a No. 5 Crossbar office. Photographed at the Museum of Communications in Seattle, Washimgton. June, 2000. |
| 22:15, 10 November 2007 | Crossbar-irrp1-hy.jpg (file) |  |
455 KB | 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. |
| 22:13, 10 November 2007 | Crossbar-banjo2-hy.jpg (file) |  |
390 KB | 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 |
| 22:05, 10 November 2007 | Amapunch-hy.jpg (file) |  |
124 KB | Automatic Message Accounting (AMA) call recording machine as used in a No. 5 Crossbar office. Cover removed to show paper tape punch mechanism. |
| 02:24, 10 November 2007 | Crossbar-200pt-hy3.jpg (file) |  |
169 KB | Crossbar switches, 200-point. View of a Line Link frame in a Crossbar 5 office. |
| 13:26, 9 November 2007 | Crossbar-mini-hy2.jpg (file) |  |
254 KB | Crossbar switch. 200-point "mini-switch" variant. |
| 13:03, 9 November 2007 | Crossbar-hy1.jpg (file) |  |
829 KB | 100-point, 6-wire crossbar switch. Manufactured by Western Electric April, 1970. |
