The electron tube ITL12-1 is a forced air cooled, coaxis structure ceramic-metal, medium-mu power triode containing a thoriated tungsten cathode, with maximum output power up 33kW as continuing operation and up 50kW as pulse operation. The tube is used mainly in industrial radio-frequency heating service. The tube is interchangeable with the 3CX10, 000D3 in most application.
Electrical characteristics
Filament thoriated tungsten
Filament voltage (+ 5 %, - 10 %) 5.8 V
Filament current 145 A
Surge current 600 A max.
Cold resistance 5 mΩ
Capacitances:
• grid-anode 21 pF
• grid-cathode 55 pF
• cathode-anode 1 pF
Amplification factor 22 approx.
Transconductance (Va: 10 kV, Ia: 4 A)
50 mA/V approx.
