Cathode: indirectly heated, oxide-coated. Envelope: glass-to-metal. Anode cooling: forced air. Height: at most 252 mm. Diameter: at most 50 mm. Mass: at most 400 g
Cathode: indirectly heated, oxide-coated. Envelope: glass-to-metal. Anode cooling: forced air. Height: at most 252 mm. Diameter: at most 50 mm. Mass: at most 400 g
Cathode:. Gián tiếp nước nóng, oxit bọc Envelope: kính-to-kim loại. Anode làm mát: không khí cưỡng bức. Chiều cao: ít nhất 252 mm. Đường kính:. tối đa 50 mm Khối lượng: 400 g nhiều nhất