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Hivac CV2254 / XFR2 / 5678 HF pentode

Size This valve measures 36x10x5mm overall, plus leads, and has 5 leads.

EVS data indicates this valve was replaced by the CV4094.

Filament voltage 1.25V
Filament current 50mA
Max anode voltage 100V
Max screen voltage 75V
Anode current * 1.8mA
Screen current * 0.5mA
Mutual conductance * 1.1mA/V
Anode impedance 1.0M ohms
*: At Va=Vg2=67.5; Vg1=0


Lead Function
1 Anode
2 Screen grid
3 Filament -ve, suppressor grid 1, shield
4 Control grid
5 Filament +ve, suppressor grid 2
The suppressor grid consists of two separate deflector plates, one of which is connected to lead 3 and the other to lead 5.
CV2254 /  XFR2

This file was last modified 23:10:21, Wednesday February 23, 2022