noun🔗Share삼극 진공관A thermionic valve containing an anode, a cathode, and a control grid; small changes to the charge on the grid control the flow from cathode to anode, which makes amplification possible."The old radio used a triode to amplify the weak signal from the antenna, making the music audible. "오래된 라디오는 안테나에서 오는 약한 신호를 증폭하기 위해 삼극 진공관을 사용하여 음악을 들을 수 있게 했습니다.electronicsdevicetechnologymachineelectricsignalphysicsChat with AIVocabulary GamePractice Reading