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CV2277 low impedance pentode

Size This valve measures 77x19mm overall and has a B9A base.


Heater voltage 26.5V
Heater current 230mA
Max anode operating voltage 250V
Max screen operating voltage 250V
Max anode dissipation 12W
Max screen dissipation 3W
Mutual conductance (Va=Vg2=26.5; Ia=14mA) 4.8mA/V
Capacitances (measured without metal shell)
Cin nom 12.0pF
Cout nom 9.6pF
Ca,g1 nom 0.54pF


Pin Function
1 i/c
2 Control grid
3 Cathode
4 Heater
5 Heater
6 i/c
7 Anode
8 Screen grid
9 Suppressor grid

Donated by Chris Colebrook

This file was last modified 17:01:13, Friday April 14, 2023