The 7T85RB is a forced air cooled, ceramic—metal triode containing a thoriated tungsten carbide cathode intended for use in industrial high frequency heating service as an oscillator.
GENERAL CHARACTERISTICS
Filament Voltage 6.3 V
Filament Current 35 A
Transconductance (Ia=0.35A) 5 mA/V
Amplification Factor 21
Interelectrode Capacitance
Grid Plate 13 pF
Grid Cathode 15 pF
Plate Cathode 0.5 pF
Maximum Operating Frequency 110MHz
Maximum Height 215 mm
Maximum Diameter 130 mm
Appro. Weight 1.5 kg
