Description

WR50 is direct-heated type thorium tungsten cathode triode, can be used as class A1 and AB1 amplification.

Typical operating parameter
Heater voltage 7.5 V
Heater current 1.25A
Ua 350V

Grid voltage -63 V
Ia 45 Ma
Internal resistance 4.1K
Amplification coefficient 3.8
Output power 2.4W