Convention, Volume 2;Volume 37;Volume 50 |
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Halaman xvii
... lamps 48 argon as a gas filler , possibilities of . 101 blackening in tungsten lamps , prevention . 98 candle - power of all lamps sold has risen . 104 filaments of large diameter , desirability of using . 98 life of nitrogen - filled ...
... lamps 48 argon as a gas filler , possibilities of . 101 blackening in tungsten lamps , prevention . 98 candle - power of all lamps sold has risen . 104 filaments of large diameter , desirability of using . 98 life of nitrogen - filled ...
Halaman 99
... lamps give roughly from five to ten times the candle - power of evacuated lamps , but the bulbs of such filled lamps naturally run much hot- ter than those of ordinary lamps . The upper parts of the bulbs are often 100 to 200 deg . cent ...
... lamps give roughly from five to ten times the candle - power of evacuated lamps , but the bulbs of such filled lamps naturally run much hot- ter than those of ordinary lamps . The upper parts of the bulbs are often 100 to 200 deg . cent ...
Halaman 102
... lamps for street lighting . These lamps are to be of the 300 - watt and 500 - watt sizes , the former giving 600 actual c - p , and the latter between 1100 and 1200 c - p . The two sizes are ordered for different sections of the city ...
... lamps for street lighting . These lamps are to be of the 300 - watt and 500 - watt sizes , the former giving 600 actual c - p , and the latter between 1100 and 1200 c - p . The two sizes are ordered for different sections of the city ...
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