送信管の格子温度の測定について
1955 年 24 巻 1 号 p. 34-42
詳細
1955 年 24 巻 1 号 p. 34-42
It is very important to know about the grid temperature of transmitting tubes during exhaustion and operation. Measurements are made on 7T56, a water-cooled triode, by welding a fine Ta-W thermo-couple on to the middle portion of one of the side-rods with following results:
(1) The inside surface of anode acts as a reflector.
(2) The filament power and the equivalent grid dissipation are expressed as exponential functions of absolute temperature of the grid.
(3) Influence of the anode temperature on the grid temperature is small.
Approximate analyses are given on the above experimental results.
