单词 | decade box |
释义 | > as lemmasdecade box (a) A set of resistors (or capacitors or inductors) connected so as to provide a resistance of any integral value between one and ten times the lowest at a single setting of a switch, etc.; a decade is usually one of several in a box which cover successive multiples of ten in value (so decade box, etc.). ΘΚΠ the world > matter > physics > electromagnetic radiation > electronics > electronic devices or components > [noun] > resistor high-frequency resistance1892 decade1911 voltage divider1930 bleeder resistance or resistor1935 resistor1947 1911 W. H. Timbie Elem. Electr. v. 121 (caption) Wheatstone bridge, ‘decade’ form. 1911 W. H. Timbie Elem. Electr. v. 121 The coils composing the variable resistance are arranged in such an ingenious way that 10 variations in value in each ‘decade’ or row are made by the use of only 4 coils. 1911 W. H. Timbie Elem. Electr. v. 122 One decade represents 1000-ohm steps, the next 100-ohm steps, etc. This gives a total range in the four decades of 9999 ohms, by one-ohm steps. 1952 F. E. Terman & J. M. Pettit Electronic Measurem. (ed. 2) xiv. 615 In grouping condensers together to form decade units, it is desirable to employ the smallest possible number of condensers. 1952 F. K. Harris Electr. Measurem. vii. 229 There may be ten 1-ohm coils for the unit decade, ten 10-ohm coils for the ten decade, etc. 1952 F. K. Harris Electr. Measurem. vii. 231 The switching arrangement most common in decade resistance boxes..is the rotary switch having brushes which bear on contact studs. < as lemmas |
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