要先比较一下参数是否接近? 比如某型号氘灯的特征参数:
filament voltage (preheat state) 10V
filament current (preheat state) about 0.8A DC、AC
preheat time about 20sec
filament voltage (working state) 7V DC、AC
filament current (working state) about 0.5A DC、AC
rated current 300mA DC
working voltage 70V~90V DC
starting voltage ≥300V DC 。 你需要比较你要替换的氘灯上述参数是否基本接近,才能安全替换。