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脉冲调制管TM-90是一种束射四极管,主要应用在磁控管发射机中,用作通导和截止的转换开关。调制管的栅极加上脉冲信号之前,调制管处于截止状态,当信号加上时,调制管开始通导,这时高压在磁控管两端或贮能电容通过磁控管放电,磁控管开始工作,且有发射。调制管在工作时,要求管压降尽量小,使绝大部份电压加到磁控管上;调制管不工作时,要求耐高压,因此,结构上采用了既有足
The pulse modulation tube TM-90 is a beam-emitting diode, mainly used in magnetron transmitters, as a transfer switch for on and off. Modulation tube gate pulse signal before the modulation tube is off, when the signal is added, the modulation tube began to pass, when the high voltage at both ends of the magnetron or storage capacitor through the magnetron discharge, magnetron Tube began to work, and there are launches. Modulation tube at work, require the tube pressure drop as small as possible, so that most of the voltage added to the magnetron; modulation tube does not work, requiring high pressure, therefore, the structure of the existing foot