Virtual Valve Museum

Virtual Valve Museum

HomeFull List

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

CV5140 measuring diode

This valve measures 42x14mm overall

This is a measuring diode for use up to 1GHz.

Heater voltage6.3V (min 5.6, max 7.0)
Heater current300mA
Max PIV (<100MHz)1kV
Max PIV (>100MHz) *(100/f) * 1kV
Max heater to cathode voltage50V
Max cathode current (Vh=5.6 to 7.0V)300µA
Max peak cathode current (Vh=5.6 to 7.0V) **5mA

*: f in MHz
**: For frequencies lower than 100Hz, 0.3 + 0.047f mA (f in Hz)

Connections: the leads are the heater, the middle ring the cathode and the probe is the anode.