CV3998
Pentode · IHT · 7-pin Miniature · 1958
“Military E180F.”
Small-signal pentode for low-noise voltage amplification
Datasheet ↗SPICE
TRANSCONDUCTANCE0mA/V
GAIN0%
POWER7%
DRIVE50%
LINEARITY75%
EXECUTIVE SUMMARY
The CV3998 is a indirectly-heated pentode from Mullard, introduced around 1958. Commonly used in preamp applications. Military E180F.
APPLICATIONS
Voltage amplifier
Generic pentode preamp stage
HISTORY
Introduced1958ManufacturerMullardEquivalentsE180F mil
Golden AgeSPECIFICATIONS
Heater Voltage6.3V
Heater Current0.175A
Max Plate Voltage300V
Max Power2.7W
Sensitivity5 mA/V
Gain Factor—
Internal Impedance—
Pinout7-pin Miniature
Era1958
RarityModerate