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VR107 / 10E/383 heptode frequency changer

Size This valve measures 111x35mm overall and has a B7 base.


Heater voltage 13V
Heater current 150mA
Max anode voltage 250V
Max screen voltage 100V
Max oscillator anode voltage 100V
Conversion conductance * 550µmhos

*: At Va=250, Vg3=100, Vg2=200, Vg4=-3.

Pin Function
1 Oscillator anode
2 Oscillator grid
3 Screen grids
4 Heater
5 Heater
6 Cathode
7 Anode
TC Signal grid

This file was last modified 14:46:21, Tuesday September 02, 2014