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CV1985 / 6SL7GTY / VT229 high mu double triode

This valve measures 77x32mm overall and has an octal base

 

Heater voltage 6.3V
Heater current 300mA
Max anode voltage 275V
Max anode dissipation (per side) 1.1W
Amplification factor * 70
Mutual conductance * 1.6mA/V
Anode impedance 44k ohms

*: At Va=250V, Vg=-2V

 

Pin Function
1 Grid "
2 Anode "
3 Cathode "
4 Grid '
5 Anode '
6 Cathode '
7 Heater
8 Heater

CV1985

VT229