Beijing Phamitech Electronics ITL5-1 Power Triode The ITL 5-1 is a RF forced air cooled power triode, designed specifically for industrial applications. This tube uses a coaxial design and metal ceramic technology. Typical Operation Class C RF Oscillator for Industrial Applications Operating frequency 30 30 MHz Anode voltage Grid bias voltage Grid voltage General Characteristics Anode current Filament voltage 6.3 V Filament current 65 A 250 A Filament surge current Amplification factor 20 Transconductance 23 mA/V Interelectrode capacitance Grid – anode 16 pF Grid – cathode 21 pF 0.6 pF Cathode – anode Operating position Vertical, anode up or down Weight 2.9 Height, max 210 Mm Diameter, max 123 mm Cooling kg Forced air Inlet temperature ≤45 Cooling air flow Max temperature at seal ℃ 3 ≥1 m /min ≤220 ℃ Maximum ratings Operating frequency 150 MHz 7.2 kV Anode voltage Operating frequency ≤85MHz Operating frequency85－150MH 6 kV 2.5 A Grid voltage 1000 V Grid current, full load 0.55 A Grid current, no load 0.75 A 15 A 20 A Anode dissipation 6 KW Grid dissipation： 200 W Operating frequency≤85 MHz 200 W Operating frequency85-150MH 170 W Anode current Peak filament current: CW Pulse Grid current Anode input power Anode output power 6.8 5.5 KV -540 -450 V 890 780 V 2.5 2.3 A 0.43 0.43 A 17 12.7 kW 12.9 9.5 kW Anode dissipation 3.9 3 kW Grid dissipation 142 127 W Grid resistance 1250 1050 Ω Feedback ratio 15 16 % 75.8 74.3 % Oscillator efficiency