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CV1635 / 5A/163K HF pentode

Size This valve measures 46x19mm overall and has a B9A base.


Heater voltage 6.3V
Heater current 500mA
Max anode voltage 350V
Max screen voltage 350V
Max anode dissipation 3.5W
Max screen dissipation 1.4W
Mutual conductance * 15mA/V
Screen grid amplification factor * 70
Capacitances (unscreened)
Cae 3.6pF
Cge 13.0pF
Cag 0.016pF

*: At Va=Vg2=200, Ia=15mA.


Pin Function
1 Suppressor grid + shield
2 Control grid
3 Suppressor grid + shield
4 Heater
5 Heater
6 Anode
7 Cathode
8 Cathode
9 Screen grid

This file was last modified 23:10:16, Wednesday February 23, 2022