Convention, Volume 1;Volume 33;Volume 38 |
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Halaman 69
... Tungsten Situation A good summary of the situation as to the tungsten lamp itself , intrinsically , was made last fall by Mr. E. G. Bieg , before the Michigan Electric Association , in describing the lamps now in current supply to ...
... Tungsten Situation A good summary of the situation as to the tungsten lamp itself , intrinsically , was made last fall by Mr. E. G. Bieg , before the Michigan Electric Association , in describing the lamps now in current supply to ...
Halaman 70
... tungsten street - series lamp is from 1500 to 2000 hours in service . The lamp can be depended upon to give a brilliant light until it fails , with small depreciation in candle - power . The introduction of the tungsten - series lamp ...
... tungsten street - series lamp is from 1500 to 2000 hours in service . The lamp can be depended upon to give a brilliant light until it fails , with small depreciation in candle - power . The introduction of the tungsten - series lamp ...
Halaman 139
... tungsten , while its other qualities insure an excellent performance . Fragility Why is the ordinary tungsten filament lamp so fragile ? It is so on account of both the material of which the filament is made and the way in which it is ...
... tungsten , while its other qualities insure an excellent performance . Fragility Why is the ordinary tungsten filament lamp so fragile ? It is so on account of both the material of which the filament is made and the way in which it is ...
Isi
1PaperLatitude in Commercialism By ARTHUR | xxiii |
1PaperCentralStation Advertising By H | xxix |
3PaperDecorative Street Lighting By E | l |
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