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| pen·tode [ pén td ] (plural pen·todes) |
noun |
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| Definition: |
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1. electronic device with 5 electrodes: a vacuum tube that has five electrodes. They are a cathode, an anode, and three grids.
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2. transistor with 5 electrodes: a point contact transistor with five electrodes, i.e. a base, three emitters and one collector
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| [Early 20th century. <penta-] |
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