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 ……………………… 22 A
Transconductance (Ia=0.35A) ………… 4.5 mA/V
Amplification Factor ………………………… 17
Interelectrode Capacitance
Grid Plate …………………………… 12 pF
Grid Cathode………………………… 12 pF
Plate Cathode ……………………… 0.4 pF
Maximum Operating Frequency …………110MHz
Maximum Height ……………………… 190 mm
Maximum Diameter …………………… 130 mm
