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CV2493 low noise double triode

Size
This valve measures 54x19mm overall and has a B9A base

Heater voltage6.3V
Heater current300mA
Max peak anode voltage (Ia=0)440V
Max DC anode voltage250V
Max DC anode voltage (Pa<0.8W)275V
Max anode dissipation (per anode)1.9W
Max grid dissipation (per grid)40mW
Max negative grid voltage-120V
Max peak negative grid voltage (a)220V
Max DC cathode current (per cathode)22mA
Max peak cathode current (per cathode) (a)110mA
Max bulb temperature185°C
Anode current (per anode) (b)15mA
Mutual conductance (b)12.5mA/V
Amplification factor (b)33
Capacitances (without external shield)
Cag1.4pF
Cin3.3pF
Cout '1.8pF
Cout "1.7pF

(a) Max duty cycle = 0.1; max pulse duration = 200µs
(b) At Va=100V, Vg=9V, Rk=680Ω
PinFunction
1Anode "
2Grid "
3Cathode "
4Heater
5Heater
6Anode '
7Grid '
8Cathode '
9Shield

CV2493

This file was last modified11:09:12, Wednesday July 03, 2019