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PX4

Low Frequency, low power triode.
3-6 Watts of pure class-A power.
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Maximum Ratings

DC Plate  Voltage:350 V
DC Plate Current: 60 mA                                       
Dissipation :20 Watts

Testing Point

DC Plate  Voltage: 250 V                                            
DC Plate Current:48 mA
Grid Voltage: -32 V                                       
Plate Resistance:980 ohm
Transconductance :5.1 mA/V

PX454
PX454

SPECIFICATIONS

Filament Voltage:4.0 V                                                   
Filament Current:1.1 A                                       
Amplification  Factor:5.0