RCA JAN-12SN7GT — Matched Quad 4 Pcs
12SN7GT / JAN MilITARY-Spec
Made in USA
Black Base
Date Code: K5E
Amplitrex AT1000 Tested
Offered here is a premium matched quad of RCA JAN-12SN7GT dual triodes. These are highly sought-after military-grade valves (Joint Army-Navy) featuring the iconic black coated glass and black base construction. The “K5E” date code indicates consistent vintage production from the golden age of American tube manufacturing.
All four valves are New Old Stock (NOS) and provided in their original RCA factory boxes. This quad has been thoroughly screened and matched on the Amplitrex AT1000 to ensure professional-grade performance and reliability.
| Serial No. | Test Triode | Parameter Ip mAdc | Result Ip mAdc | % Ip | Parameter Gm uMhos | Result Gm uMhos | % Gm |
|---|---|---|---|---|---|---|---|
| 2353081 | Triode 1 | 9.0 | 9.2 | 102.2% | 2600 | 2800 | 107.7% |
| Triode 2 | 9.0 | 8.1 | 90.0% | 2600 | 2700 | 103.8% | |
| 2353100 | Triode 1 | 9.0 | 9.6 | 106.7% | 2600 | 2900 | 111.5% |
| Triode 2 | 9.0 | 8.5 | 94.4% | 2600 | 2800 | 107.7% | |
| 2353175 | Triode 1 | 9.0 | 8.0 | 88.9% | 2600 | 2800 | 107.7% |
| Triode 2 | 9.0 | 8.8 | 97.8% | 2600 | 2900 | 111.5% | |
| 2353176 | Triode 1 | 9.0 | 10.2 | 113.3% | 2600 | 2800 | 107.7% |
| Triode 2 | 9.0 | 8.8 | 97.8% | 2600 | 2800 | 107.7% |
About NOS Audio Tubes
Based in Mumbai, India, we are professional suppliers of high-quality vintage vacuum tubes with 50+ years of expertise. Our massive inventory of approximately 300,000 valves supports the global audiophile and restoration community with laboratory-tested components.
Note: Custom Duties and taxes our the responsibility of the buyer in their country.
Note: We Have more than 200 Pcs
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