Sophia Electric 2A3 Vacuum Tube Specification

Filament voltage *2.5V
Nominal filament current 2.5A
Plate voltage 250V
Grid voltage (AC filament) -45V
Plate current 60mA
Plate current 62.5 mA
Amplification factor 4.2
Grid current 0.05 uA
Plate resistance 800 ohms
load resistance 2500 ohms
Maximum plate voltage 300 volts
Maximum plate dissipation 15 watts

 

 
Sophia Electric 2A3 mesh tube plate curves

 

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