RCA 12AX7A / ECC83
MADE IN USA | SHORT PLATE | RING GETTER
Short Plate Design
NOS in Original Box
Amplitrex Verified
Available for purchase is a premium vintage RCA 12AX7A (ECC83) vacuum tube, manufactured in the USA. This unit features the desirable Short Plate construction and Ring Getter, highly regarded for low noise and classic American tonal warmth.
This unit has been precision tested on the Amplitrex AT1000 digital laboratory tester. The data below is presented using the Percentage Method against original factory design-center specifications (Ip = 1.2 mA / Gm = 1600 µMhos).
| Serial No. | Section | Parameter Ip | Result Ip | % Ip | Parameter Gm | Result Gm | % Gm |
|---|---|---|---|---|---|---|---|
| #2164001 | Triode 1 | 1.2 | 0.9 | 75.0% | 1600 | 1450 | 90.6% |
| Triode 2 | 1.2 | 1.0 | 83.3% | 1600 | 1400 | 87.5% |
About Our Testing & Guarantee
Specializing in thoroughly screened vintage vacuum tubes since 1970. Our laboratory utilizes industry-standard equipment including the Amplitrex AT1000, Hickok 752A, and AVO Type 160. With a stock of approximately 300,000 valves, we guarantee the quality of every item sold.
NOS Audio Tubes — Quality and Precision Since 1970
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