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STC 3A/107A / CV249 triode

Size This valve measures 115x45mm overall and has a 4 pin base.


Nominal filament voltage 4.0V
Filament current 250mA
Max anode voltage 190V
Anode impedance * 5500 ohms
Amplification factor * 7.0
Mutual conductance * 1.27mA/V
Cag max 6.5pF
Cae max 6.0pF
Cge max 8.0pF
*: At Va=130, Vg=-8


Pin Function
1 Grid
2 Filament -
3 Filament +
4 Anode

This file was last modified 15:08:57, Tuesday September 02, 2014