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NR86 HF tetrode

Size This valve measures 115x35mm

The prototype is KTW63.

Heater voltage 6.3V
Heater current 300mA
Max anode voltage 250V
Max screen voltage 125V
Mutual conductance (Va=250, Vg2=125, Vg1=0) 1.5mA/V
Capacitances (with external screen)
Cag max 0.006pF
Cae 7.5pF
Cge 4.7pF


Pin Function
1 n/c
2 Heater
3 Anode
4 Screen grid
5 n/c
6 no pin
7 Heater
8 Cathode
TC Control grid

This file was last modified 14:47:28, Tuesday September 02, 2014