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STC 4101E triode

This valve measures 111x55mm overall and has a 4 pin base. 

The base markings on this valve are: Standard Telephones and Cables Ltd., Pattented in Great Britain, 17580/15, 161619, 180090, 4101E.

Filament current 1.0A
Nominal filament voltage 4.5V
Max anode voltage 160V
Mutual conductance * 1.07mA/V
Amplification factor * 6
Anode impedance * 5600 ohms
Cag 6.0pF
Caf 4.5pF
Cgf 5.5pF

*: At Va=130, Vg=-9.

Pin Function
1 Filament
2 Anode
3 Grid
4 Filament


Donated by The Geelong Radio & Electronics Society Inc.

This file was last modified15:03:25, Tuesday September 02, 2014