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CV4507 reliable subminiature triode

Size This valve measures 37x9mm overall and has 8 leads.


Heater voltage 6.3V
Heater current 175mA
Max heater/cathode voltage 100V
Max anode voltage (Ia=0) 350V
Max operating anode voltage 190V
Max -ve grid voltage -50V
Max cathode current 20mA
Max anode dissipation 2W
Max vibration (100 hours duration) 5g
Max vibration (10 hours duration) 20g
Max shock (short duration) 500g
Max bulb temperature 165C
Max operating pressure 55mm.Hg.
Max ambient storage temperature -60 to +85C
Typical operating conditions (Va=100, Vg=-3)
Anode current 8mA
Mutual conductance 4.2mA/V
Amplification factor 20
Capacitances Shielded Unshielded
Cin nom 2.2pF 2.0pF
Cout nom 2.8pF 1.2pF
Cag nom 1.4pF 1.4pF


Lead Function
1 Grid
2 Anode
3 Heater
4 Anode
5 n/c
6 Heater
7 Cathode
8 Anode