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CV5409 high slope vari-mu pentode

Size
This valve measures 55x19mm overall and has a B9A base

Heater voltage6.3V
Heater current300mA
Max anode voltage275V
Max anode dissipation2.75W
Max screen voltage275V
Max screen dissipation1.2W
Max cathode current30mA
Max heater-cathode voltage250V
Capacitances (no external shield)
Cin9.0pF
Cout3.0pF
Cag (max)0.01pF


PinFunction
1Cathode
2Control grid
3Cathode
4Heater
5Heater
6Shield
7Anode
8Screen grid
9Suppressor grid

CV5409