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STC CV1670 / 3A/172B triode

Size This valve measures 112x38mm overall and has a 7 pin base.


Nominal heater voltage 13.0
Heater current 200mA
Max anode voltage 250V
Amplification factor (Va=100V; Vg=0) 40
Mutual conductance 4mA/V
Anode impedance 10k ohms


Pin Function
1 Metallising if present
2 n/c
3 n/c
4 Heater
5 Heater
6 Cathode
7 Anode
TC Grid
Top quarter view Bottom quarter view

This file was last modified 23:10:16, Wednesday February 23, 2022