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CV1079 / VT79 / KT8C tetrode

Size This valve measures 133x50mm overall and has a 5 pin base.


Heater voltage 6.3V
Heater current 1.25A
Max anode voltage 600V
Max screen voltage 300V
Max anode dissipation 25W
Max screen dissipation 3.5W
Mutual conductance (Va=Vg2=250, Ia=100mA) 6.5mA/V
Max operating frequency 65MHz
Cae 5.5pF
Cge 15.3pF
Cag 0.5pF


Pin Function
1 Screen grid
2 Control grid
3 Heater
4 Heater
5 Cathode (+ suppressor grid if used)
TC Anode
Above: CV1079, below: VT79 / KT8C

VT79 donated by Rod Burman

This file was last modified 23:10:41, Wednesday February 23, 2022