SYLVANIA 46 – Matched Pair 2 Pcs
Made in USA
Classic Black Base
Inverted Cup Getter
AVO Type 160 Tested
Up for sale is a magnificent, tightly matched pair (2 pieces) of vintage SYLVANIA 46 dual-grid power amplifier triodes. Highly sought-after in the high-fidelity audio restoration and vintage tube community, these American-made classics are celebrated for their superb sonic depth and exceptional linearity in both single-ended and push-pull configurations.
Both tubes are physically pristine and meticulously indexed. They feature premium Black Plates, clean Black Bases, and the distinctive inner Half-Black Coated Glass shielding engineered to suppress stray RF artifacts. Arriving secure in clean white boxes, each unit carries a dedicated serial number tracking sticker (S/R NO. 3097005 and 3097004) that corresponds precisely to the dynamic test data recorded from our calibrated laboratory equipment.
Testing & Verification: This matching pair has been thoroughly analyzed on a professional, industry-trusted AVO Type 160 valve tester.
| Tube Position / Serial No. | Parameter Ia | Result Ia | % Ia | Parameter mA/V | Result mA/V | % mA/V |
|---|---|---|---|---|---|---|
| TUBE 1 (S/R NO. 3097005) | 22.0 | 24.5 | 111.36% | 2.35 | 2.50 | 106.38% |
| TUBE 2 (S/R NO. 3097004) | 22.0 | 24.5 | 111.36% | 2.35 | 2.50 | 106.38% |
About NOS Audio Tubes
We are professional suppliers of high-quality vacuum tubes with a specialized industry lineage dating back to the 1970s. Maintaining a vast global reserve of nearly 300,000 pristine valves, we focus on high-fidelity audio equipment and vintage instrumentation. Every tube is verified utilizing customized evaluation methods to offer our global community reliable, transparent data grading.
Note: Custom duties and Taxes are the Responsibility of the Buyer in their Country.
NOS Audio Tubes — Mumbai, India
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