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ARP8 power amplifier pentode

Size This valve measures 127x55mm overall and has a B7 base.


Heater voltage 4V
Heater current 2.1A
Max anode voltage 250V
Max screen voltage 250V
Max anode dissipation 16W
Mutual conductance (Va=Vg2=250, Vg1=-10) 11mA/V


Pin Function
1 n/c
2 Control grid
3 Screen grid
4 Heater
5 Heater
6 Cathode + suppressor grid *
7 Anode

*: The EVS data lists this valve as a beam power amplifier and gives pin 6 as just the cathode connection, but examination of the actual valve shows the suppressor grid connected to the cathode.


This file was last modified 15:42:56, Tuesday September 02, 2014