Virtual Valve Museum

Virtual Valve Museum

HomeFull List

This is an archive website. It will not receive any updates, additions or corrections.

CV1062 / 4304CB / VT62 RF triode oscillator

Size This valve measures 160x60mm overall and has a 4 pin B4 base.

See also CV315 and CV1288, both of which share the 4304CB markings. The CV1062 was supplied in matched pairs.

Filament voltage 7.5V
Filament current 3.2A
Max anode voltage 1250V
Max anode dissipation 50W
Amplification factor *


Anode impedance * 5k ohms
Mutual conductance * 2mA/V
Max frequency for above ratings 100MHz
Cg, f max 2.5pF
Ca, f max 1.0pF
Ca, g max 3.5pF

*: At Va=1000V, Ia=50mA.

Pin Function
1 n/c
2 n/c
3 Filament
4 Filament
TC1 Anode
TC2 Grid


Above: STC CV1062 / 4304CB
Below: Slater VT62 (10E/11443)


View of anode View of grid

Top quarter view Bottom quarter view