片语
beam tetrodeA beam tetrode, sometimes called a "beam power tube", is a type of tetrode valve (or 'tube') with auxiliary beam-focusing plates designed to augment power-handling capability and help reduce unwanted emission effect These tubes are usually used for power amplification, especially at audio-frequency.
tetrode transistorA tetrode transistor is any transistor having four active terminal
gas tetrode充气四极管
tetrode thyratron[电子]
quadrode tetrode四极管
tetrode amplifier四极管放大器
tetrode etcher四极管腐蚀装置
crystal tetrode[电子]
quadrode四极管
frequency tetrode高频四极管