Virtual Valve Museum

Virtual Valve Museum
HomeFull List

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

CV90 disc seal triode. Note, the camera lens does distort this slightly but the base really is warped like that!

Designed for use as a local oscillator in a double concentric co-axial line, this valve could operate up to 3GHz, and generated 4W output at 1GHz. It was replaced by the smaller CV273.

Heater voltage6.3V
Heater current600mA approx
Max anode voltage350V
Max anode dissipation10W
Ampification factor35
Mutual conductance (Va=250, Ia=25mA)5.0mA/V
Capacitances
Cag1.9pF
Cac0.065pF
Cgc2.25pF

CV90

 CV90