310A
Pentode · IHT · Special · 1937
“WE voltage pentode. Heart of the WE91A.”
Small-signal pentode for low-noise voltage amplification
TRANSCONDUCTANCE0mA/V
GAIN0%
POWER9%
DRIVE50%
LINEARITY75%
EXECUTIVE SUMMARY
The 310A is a indirectly-heated pentode from Western Electric, introduced around 1937. Commonly used in preamp applications. WE voltage pentode. Heart of the WE91A.
APPLICATIONS
Voltage amplifier
Generic pentode preamp stage
HISTORY
Introduced1937ManufacturerWestern ElectricEquivalents310B, 348A
Pre-WarSPECIFICATIONS
Heater Voltage10V
Heater Current0.32A
Max Plate Voltage275V
Max Power3.5W
Sensitivity1.8 mA/V
Gain Factor—
Internal Impedance—
PinoutSpecial
Era1937
RarityLegendary
SPICE model not yet available. Loadline calculator requires calibrated Koren parameters.