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- Date:
- 1942
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- May 02, 2025
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- ; the attraction of the cathode, although weak, is close by. If the electron be emitted
- Date:
- 1935
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- May 02, 2025
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- changes of air pressure carried to it by a horn or megaphone. Consequently, when sound (air
- Date:
- 1935
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- May 02, 2025
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- picture of a film reproducing system, which it is suggested that the reader study by way of
- Date:
- 1942
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- May 02, 2025
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- current supplied by the power line must be converted to direct current before it can Inused
- Date:
- 1942
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- May 02, 2025
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- -convex condenser. This is by no means its only advantage. Most of the reflector type
- Date:
- 1942
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- May 02, 2025
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- rated capacity of the carbons. It may rtyUj) A ' ^e caused by lack of proper firm contact
- Date:
- 1942
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- May 02, 2025
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- transmission of sound radio and, thereafter, the transmission of television by radio.
(2) In any
- Date:
- 1935
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- May 02, 2025
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- causes brush sparking that cannot be stopped, though it can be reduced by shifting the brush
- Date:
- 1935
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- May 02, 2025
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- capacity of the carbons. It may B C^J a _ be caused by lack of proper, firm
contact
- Date:
- 1935
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- May 02, 2025
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- shed or emit negatrons. The surface of any metal is always surrounded by an extremely
