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CV1152 / NR15A triode

Size
 This valve measures 110x45mm overall and has a B4 base

The valve shown at the top right carries the serial number 6049C. The other one has no serial but is dual marked.

Max operating filament voltage3.8V
Approx filament current100mA
Max anode voltage100V
Amplification factor *14
Mutual conductance *2mA/V
Anode impedance *7000 ohms
Average anode current *4.5mA
Capacitances
Cag4.7pF
Ca-all7pF

*: At Va=100, Vg=-1.
PinFunction
1Anode
2Grid
3Filament
4Filament

NR15A
CV1152