Tests of Tungsten Lamps
Tests of Tungsten Lamps
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35 $. 85 B is excessively high on account of the exceedingly short average life of the lamps under this condition; in fact, for power costs below 12 or 13 cents per kilowatt-hour, they are more expensive to operate than ordinary carbon filament lamps. 1 VII. CONCLUSIONS Comparisons of the durability of filaments made by the colloid, deposition and paste processes are very difficult to make owing to the fact that the three types were all mounted differently. Un- doubtedly the manner of mounting ...a filament has a great effect upon its life, and whether the superior life of one type of lamp is due to the fact that it has a better scheme of mounting or to the fact that the process of manufacture is better, can hardly be decided definitely from these tests. Tests of filaments made by the three processes and mounted in exactly the same way would be necessary to decide this question absolutely. From the tests just 1 In Engineering Experiment Station Bulletin No. 19 are given the results of tests upon carbon, metallized carbon and tantalum lamps which may be compared with the results given in this bulletin for tungsten lamps.
What to read after Tests of Tungsten Lamps?
You can find similar books in the "Read Also" column, or choose other free books by Thomas Hamer Amrine to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
35 $. 85 B is excessively high on account of the exceedingly short average life of the lamps under this condition; in fact, for power costs below 12 or 13 cents per kilowatt-hour, they are more expensive to operate than ordinary carbon filament lamps. 1 VII. CONCLUSIONS Comparisons of the durability of filaments made by the colloid, deposition and paste processes are very difficult to make owing to the fact that the three types were all mounted differently. Un- doubtedly the manner of mounting ...a filament has a great effect upon its life, and whether the superior life of one type of lamp is due to the fact that it has a better scheme of mounting or to the fact that the process of manufacture is better, can hardly be decided definitely from these tests. Tests of filaments made by the three processes and mounted in exactly the same way would be necessary to decide this question absolutely. From the tests just 1 In Engineering Experiment Station Bulletin No. 19 are given the results of tests upon carbon, metallized carbon and tantalum lamps which may be compared with the results given in this bulletin for tungsten lamps.
What to read after Tests of Tungsten Lamps?
You can find similar books in the "Read Also" column, or choose other free books by Thomas Hamer Amrine to read onlineMoreLess
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