| 释义 |
tetrode, n. and a. Zool.|ˈtɛtrəʊd|
[f. tetra- + Gr. ὁδός way.]
A. n.
1. A sponge-spicule with four equal rays in the same plane.
2. Electronics. A thermionic valve with four electrodes.
1919,1932[see pentode]. 1941Electronic Engin. XIV. 385 The valves in this section are push-pull beam tetrodes. 1943, etc. [see kinkless a.]. 1962D. F. Shaw Introd. Electronics xi. 234 The defect in the tetrode characteristics..is eliminated by the insertion of a third grid, called the suppressor grid, between the anode and the screen. 1976Physics Bull. Aug. 359/3 (caption) This component is a new tetrode from Thomson-CSF.
†B. adj. Telegr. Applied to a mode of multiplex telegraphy by which four messages can be transmitted along a wire simultaneously. Obs.
1886[see hexode a.]. |