Preamps
Filament voltage: 4.5V (working range 4-5V)
Anode voltage: 190V (maximum withstand voltage 300V)
Gate bias voltage: -18V
Anode current: 6.4mA (peak 30mA)
Filament current: 1.0A
Capacitance between electrodes: Input 4.8pF/Output 5.2pF

Packaging: Yes
Model:WE101D/WE101D-L
Maximum power per channel: No power supply