Fivre 12AU7 / ECC82
MADE IN ITALY | “O” GETTER | CLEAR GLASS | MATCHED PAIR
Italy Made
“O” Getter
Clear Glass
Up for sale is a superb matched pair (2 pieces) of Fivre 12AU7 / ECC82 vacuum tubes. These are genuine Italian-made New Old Stock (NOS) specimens in their original boxes. Fivre tubes are celebrated for their distinctive musical character, offering a smooth, detailed presentation that elevates any high-end audio circuit.
Precision tested on our Amplitrex AT1000 digital laboratory system, the results below utilize the Percentage Method against original factory design-center specifications (Ip = 10.5 mA / Gm = 2200 µMhos). Both tubes show remarkable balance, testing at or near 100% nominal values.
| Serial No. | Test Triode – T1/T2 | Parameter ip mAdc | Result ip mAdc | % Ip (Emission) | Parameter Gm uMhos | Result Gm uMhos | % Gm (Transc.) |
|---|---|---|---|---|---|---|---|
| #1130004 | Triode 1 | 10.5 | 10.4 | 99.0% | 2200 | 2230 | 101.3% |
| Triode 2 | 10.5 | 10.2 | 97.1% | 2200 | 2200 | 100.0% | |
| #1130002 | Triode 1 | 10.5 | 10.2 | 97.1% | 2200 | 2200 | 100.0% |
| Triode 2 | 10.5 | 10.0 | 95.2% | 2200 | 2100 | 95.4% |
⚠️ International Buyers: Custom duties and taxes are the responsibility of the buyer in their country.
Quality Verified Since 1970
Specializing in thoroughly tested and screened quality vacuum tubes.
Testing equipment includes Amplitrex AT1000, Hickok 752a, and AVO Type 160.
Custom duties and taxes are the responsibility of the buyer in their country.
Support: [email protected] Precision Verified — NOS Audio Tubes
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