Preamps
Typical operating parameters
Filament voltage: 4.5V
Filament current
Anode voltage: 190v
Grid voltage: 14V
Anode current: 10Ma
Magnification -------------- 6.2
Output power: 200mA
Interelectrode capacitance
Input capacitance-------------- 6.4PF
Output capacitance: 4.4PF
Inter-circuit capacitance-----------------2.9PF