Preamps
Tone: warm and round, full without losing transparency, loose without losing texture.
805-TA: Directly heated tungsten cathode triode, capable of Class B AF power amplification, Class C power amplification, and high frequency oscillation.
Filament Heating
Uf---------------10V
IF --------------3.25A
Interelectrode capacitance
Input capacitance: 8.5PF
Output capacitance: 10.5PF
Cross-circuit capacitance: 6.5PF
Final Rating
Anode voltage: 1500V
Anode dissipation power: 125W
Static test parameters
Filament voltage: -10V
Anode voltage: 1500v
Gate voltage 10
Screen current value: 48-72mA