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CV4045 reliable beam tetrode

Size This valve measures 59x19mm overall and has a 9-lead B9A/F base.

See also CV4043 which is the pinned version. The prototype is CV2136.

Heater voltage 6.3V
Heater current 450mA
Max anode voltage 350V
Max screen voltage 310V
Max anode dissipation 13.2W
Max screen dissipation 2.1W
Max heater-cathode voltage +/-90V
Mutual conductance 4.1mA/V
Anode impedance 50k ohms
Max bulb temperature 250C
Max shock (short duration) 500g
Max acceleration (continuous operation) 2.5g


Lead Function
1 Control grid
2 Control grid
3 Cathode
4 Heater
5 Heater
6 n/c
7 Anode
8 Screen grid
9 Beam plates