| 单词 | peanut valve |
| 释义 | > as lemmaspeanut valve peanut valve n. Electronics a type of small thermionic triode valve requiring a low current and having a relatively long life. ΘΚΠ the world > matter > physics > electromagnetic radiation > electronics > electronic devices or components > thermionic valve > [noun] > vacuum tube or thermionic valve vacuum tube1859 trigger tube1894 audion1906 pliotron1915 diode1919 electron tube1919 negatron1919 pentode1919 power valve1919 tetrode1919 triode valve1919 magnetron1921 bright emitter1923 peanut valve1923 peanut1924 power tube1924 multiple valve1929 thyratron1929 heptode1932 hexode1933 pentagrid1933 acorn tube1934 octode1934 triode-pentode1936 triode-hexode1937 transitron1939 trochotron1947 steering diode1957 1923 G. Parr Princ. & Pract. Wireless Transmission viii. 119 A valve which has proved very popular in America both on account of its size and low current consumption is that known as the Polar ‘Pea-nut’ valve. The bulb is tubular, its dimensions being 2 in. long by ½ in. diameter, and is fitted with a bayonet cap similar to the ordinary incandescent bulb. 1930 B.B.C. Year-bk. 1931 448/2 Peanut Valve, a type of three-electrode receiving valve requiring low filament current and anode voltage. < as lemmas |
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