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Tung-Sol 12AX7A - long gray plates, halo getter, phono grade

Tung-Sol 12AX7 - long gray plates, halo getter, phono grade
Price: $72.00
Item Number: 591
Manufacturer: Tung-Sol

This 1965 Tung-Sol 12AX7A tube has wide gray plates and a halo getter. The white print on the glass has the Tung-Sol logo.


This tube tests as new. It has been screened for gas, heater-cathode leakage, shorts, and excessive noise and microphonics on each triode section. It was tested at typical operating voltages on a laboratory grade Amplitrex AT1000 (manual setting, fixed bias mode). Learn more about our testing process here.
Noise and microphonics

This tube tests as “phono/V1 grade”—the quietest range for noise and microphonics—on our custom noise testing equipment. It is an excellent choice for sensitive applications such as microphone preamps, V1 positions, DA converters, and phono stages.


This tube is sold individually.
Photo is of the actual tube. It ships in a new white box with test results for current draw (mA) and transconductance (Gm).
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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