Plate Voltage

635 V

Plate Current

145 mA

Plate Current

200 mA max.

Plate Dissipation

90 W

Transconductance

7 mA / V

Grid Voltage

-138 V

Grid Resistor

47K Ohms

Amplification Factor

4.0

Plate Impedance

470 Ohms

Load Impedance

1000 - 2400 Ohms

THD

<0.1 %

Power Output pure Class-A

33 W

Filament Voltage

4.7 - 5.0 V

Filament Current

2.0 A

Tube size incl. Socket

H 215 x 68 mm