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Sovtek 12AX7WXT+ - triple mica, matched pair

Sovtek 12AX7WXT+ - triple mica, matched pair
Price: From $39.00 to $64.00
Manufacturer: Sovtek

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The Sovtek 12AX7WXT+ tubes in this precisely matched pair have short gray plates and triple micas. The black or silver print on the glass has the Sovtek logo and says "Made in Russia."

Both tubes test as new. They have been screened for gas, heater-cathode leakage, shorts, and excessive noise and microphonics on each triode section. They were tested at typical operating voltages on a laboratory grade Amplitrex AT1000 (manual setting, fixed bias mode). Learn more about our testing process here. See product options for current availability.

Noise and microphonics

Tubes that test as "phono grade" are the quietest range for noise and microphonics on our custom noise testing equipment. They are an excellent choice for sensitive applications such as microphone preamps, DA converters, and phono stages.


These tubes are sold as matched pairs. They ship in their original boxes with test results for current draw (mA) and transconductance (Gm).

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TC Tubes specializes in precision testing and matching of vintage and new production vacuum tubes for guitar & bass players, audiophiles, and DIY tube audio enthusiasts. Our website features secure payment options and fast, convenient shipping around the world.

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