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Philips Miniwatt 12AX7 / ECC83 - phono grade

Philips Miniwatt 12AX7 / ECC83 - halo getter
Price: $119.00
1 in stock
Item Number: 951
Manufacturer: Philips

This early 1960s Philips Miniwatt 12AX7 / ECC83 tube has gray plates and large halo getter (I65 series). The white label has the Miniwatt logo (partial) and the Heerlen, Holland factory code is etched in the glass.


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.
Matched pairs, when available, are listed as Item 958. Photo is of a sample from the lot. Tube 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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