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Siemens 12AX7 / E83CC - matched pair, phono grade

Siemens 12AX7 / E83CC - matched pair, phono grade
Price: $219.00
1 matched pair in stock
Item Number: 952
Manufacturer: Siemens

The late 1960s Siemens E83CC tubes in this precisely matched pair are premium quality 12AX7 / ECC83 tubes. They have gray plates and halo getters. The white label on the glass reads "E83CC" and the Munich, West Germany factory code is etched in the glass. 

These tubes test as new.
They are precisely matched for both current draw (mA) and transconductance (Gm). 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.
Noise and microphonics

These tubes test as “phono grade”—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 a matched pair. Tubes ship in new white boxes with test results for current draw (mA) and transconductance (Gm). Singles, when available, are listed as Item 792.

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Siemens 12AX7 / E83CC - phono grade
Siemens 12AX7 / E83CC - phono grade
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Siemens 12AX7 / E83CC - phono grade
This Siemens E83CC tube is a premium quality 12AX7 / ECC83 tube. It has gray plates and a halo getter. The Munich factory code is etched in the glass. Tube tests as new with balanced sections and phono grade noise levels.
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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