ECC83 / 12AX7 / 7025 / 5751 Dual Triode

ECC83 / 12AX7 / 7025 / 5751 Dual Triode

The ECC83 or 12AX7 is a miniature 9-pin high gain (100mu) dual triode tube. It has a center-tapped heater filament so it can be used in either 6.3v 300mA or 12.6V 150mA heater circuits. Other equivalent tubes are CV491 and 7025. It is by far the most commonly used preamp tube. 

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