Ampera
ECC82
Dual Triode · IHT · 9-pin Noval · 1946
“European 12AU7.”
Medium-gain triode for driver and line stage applications
Datasheet ↗SPICE
GAIN FACTOR0
PLATE IMPEDANCE0kΩ
TRANSCONDUCTANCE0mA/V
GAIN17%
POWER7%
DRIVE92%
LINEARITY92%
TYPICAL OPERATING POINT
EXECUTIVE SUMMARY
The ECC82 is a dual indirectly-heated triode from Mullard·Philips, introduced around 1946. It provides a gain factor (μ) of 17 with 7700Ω plate resistance. Commonly used in line applications. European 12AU7.
APPLICATIONS
Line stagePhase splitter
McIntosh C22 line stageMarantz 8B driver
• Guitar amp• Headphone amp
VS 12AU7
HISTORY
Introduced1946ManufacturerMullard·PhilipsEquivalents12AU7
Golden AgeSPECIFICATIONS
Heater Voltage6.3V
Heater Current0.3A
Max Plate Voltage300V
Max Power2.75W
Sensitivity2.2 mA/V
Gain Factor17
Internal Impedance7.7kΩ
Pinout9-pin Noval
Era1946
RarityCommon