Virtual Valve Museum

Virtual Valve Museum

HomeFull List

This is an archive website. It will not receive any updates, additions or corrections.

CV2465 / 5B/254G output beam tetrode

Size This valve measures 180x30mm overall and has a B8G/F base.

This valve is based on the CV428.

Heater voltage 6.3V
Heater current 900mA
Max anode voltage 600V
Max anode voltage (Ia=0) 750V
Max screen voltage 300V
Max anode current 120mA
Max anode dissipation 25W
Max screen dissipation 4.5W
Mutual conductance * 6mA/V
Inner amplification factor * 9
Max DC grid voltage -200V
Max RF voltage between g1 and g2 1000V
Max shock (short duration) 100g
Max acceleration (continuous operation) 0.5g
C -g1 (max) 0.2pF
C in (max) 12pF
C out (max) 10pF

*: At Va=250, Vg2=250, Vg1=-14V

Lead Function
1 Heater
2 Cathode and beam plates
3 Screen grid
4 Cathode and beam plates
5 Control grid
6 Control grid
7 Cathode and beam plates
8 Heater
TC Anode

CV2465 / 5B/254G