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| | Technology in Australia 1788-1988, Chapter 7, page 466 |
 | | The innovative Melbourne cable tramway engineer was George Duncan, M.I.C.E., and it is a measure of his professional stature that he advised Brisbane against it, in favour of electric tramways, at the peak of the Melbourne system's success. |
 | | The Melbourne cable tram network was believed to be the world's largest, reaching by 1923 17 double track routes totalling 75 route -km, with 12 engine houses powering 26 cables up to 918 km long, with 592 gripper cars (dummies) and 598 hauled cars (Fig. |
 | | Later, as the tramways stretched beyond the limits of dc, generation and distribution switched to ac, with rotary converter sub-stations and later still, supply from the city's grid via mercury arc and silicon rectifiers. |
| www.austehc.unimelb.edu.au /tia/466.html (628 words) |
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