短期間使用していました。 特性未測定。 Western437A類似管。以下、「MJ無線と実験1991年4月号p.55」より転写します：
Maximum Ratings Maximum direct anode voltage 350V Maximum direct anode current 45mA Maximum direct anode dissipation 6.5W
Typical Operating Conditions*Direct anode voltage 150V Direct anode current 40mA Direct grid supply voltage +9V Cathode resistor 262Ω Equivalent noise resistance 65Ω Mutual conductance 47mA/V *Referred to cathode.
It is recommended that the required grid bias be obtained in the manner.The actual voltage between grid and cathode is equal to the difference between the gridsupply voltage and the voltage developed across the cathode resisor when cathode currentis flowing. (June 1961)
Basing(底面から見て右回り) 1 HEATER 2 I.C. 3 N.C. 4 ANODE 5 CATHODE 6 I.C. 7 GRID 8 HEATER
ロクタル管用ソケットが必要。