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Amperex 12AX7 / ECC83 - various labels, 1960s

 Amperex 12AX7 / ECC83 - various labels, 1960s
Price: From $74.00 to $84.00
Manufacturer: Amperex

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Description

This 1960s Amperex ECC83 / 12AX7 tube was made in Holland and labeled for organ, hi-fi audio, or medical companies (Hammond, Silvertone, Zenith, Fisher, Valvo, etc.). The white print label is in good condition, and the Heerlen factory code is etched in the glass.
 
Testing

This tube 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

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.

Pricing

This tube is sold individually. It ships in a new white box with test results for current draw (mA) and transconductance (Gm). Photo is a sample from the lot. Matched sets, when available, are listed as Item 734.

Related Products

Amperex 12AX7 / ECC83 - dimpled disc getter
Amperex 12AX7 / ECC83 - dimpled disc getter, phono grade
Price: $79.00
Amperex 12AX7 / ECC83 - dimpled disc getter, phono grade
This 1974 Amperex 12AX7 / ECC83 tube has gray plates and a dimple disc getter. The orange label has the Amperex globe logo and the Heerlen, Holland factory code is etched in the glass. Tube tests as new with phono/V1 grade noise levels.
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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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