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GE 12AX7 - long gray plates, phono grade
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SOLD OUT
Item Number: 99
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Description
This early 1960s GE 12AX7 tube has long gray plates and a horseshoe getter. The red or white print on the glass has the GE logo (partial).
Testing
This tube
tests as new with balanced sections. 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. See product options for current availability.
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.
Pricing
This tube is sold individually. Photo is a sample from the lot. It ships in a new white box 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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