Convention, Volume 1;Volume 30 |
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Halaman 51
... tantalum and tungsten lamps with 5 per cent rise in the voltage . CHANGE WITH 5 PER CENT INCREASE IN VOLTAGE ABOVE NORMAL Candle - Power Watts per Candle Carbon +30 per cent -15 per cent Graphitized +27 " " " -13 Tantalum +22 ...
... tantalum and tungsten lamps with 5 per cent rise in the voltage . CHANGE WITH 5 PER CENT INCREASE IN VOLTAGE ABOVE NORMAL Candle - Power Watts per Candle Carbon +30 per cent -15 per cent Graphitized +27 " " " -13 Tantalum +22 ...
Halaman 53
... tantalum and vanadium , or boron and silicon , are utilized , either singly or mixed in a powdered form , as some of these powdered metals can be obtained by known processes more or less pure ; or the pure oxides , hydrides , nitrides ...
... tantalum and vanadium , or boron and silicon , are utilized , either singly or mixed in a powdered form , as some of these powdered metals can be obtained by known processes more or less pure ; or the pure oxides , hydrides , nitrides ...
Halaman 263
... , reliability and steadiness . In the last few years we have experienced an enormously rapid advance . In the incan- descent lamp field we saw appear the Nernst lamp , the metallized carbon - filament , the tantalum lamp , the tungsten 263.
... , reliability and steadiness . In the last few years we have experienced an enormously rapid advance . In the incan- descent lamp field we saw appear the Nernst lamp , the metallized carbon - filament , the tantalum lamp , the tungsten 263.
Halaman 264
National Electric Light Association. Convention. carbon - filament , the tantalum lamp , the tungsten lamp , and so gradually the efficiency of the incandescent lamp rose far beyond that of the arc lamp of old . In the field of arc ...
National Electric Light Association. Convention. carbon - filament , the tantalum lamp , the tungsten lamp , and so gradually the efficiency of the incandescent lamp rose far beyond that of the arc lamp of old . In the field of arc ...
Halaman 265
... tantalum lamp , the Gem filament lamp , the Moore tube , the Nernst lamp , and the old carbon incandescent lamp . We have , however , also to consider the size of units . High efficiency is not the only thing . We get in the flame ...
... tantalum lamp , the Gem filament lamp , the Moore tube , the Nernst lamp , and the old carbon incandescent lamp . We have , however , also to consider the size of units . High efficiency is not the only thing . We get in the flame ...
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