RCA 6080 – MATCHED QUAD (4 PCS)
GRADE: GOLD SERIES | LABORATORY VERIFIED NOS MILITARY SPEC
Metal Base
Black Plates
Top Ring Getter
Rod Support
New in White Box
Amplitrex AT1000 Tested
Up for sale is a matched quad set of 4 vintage RCA 6080 dual power triode valves, brand new in white boxes. Made in the USA, these heavy-duty military-grade tubes feature solid metal base, rod support construction, deep black plates, and top-mounted ring getters for maximum structural stability and superior audio performance.
As shown in all four tubes have been thoroughly bench-tested on our laboratory-grade Amplitrex AT1000 digital tester. Measured plate current Ip and transconductance uMhos results are calculated against standard factory specifications (100.0 mA / 5800 uMhos) and detailed in the table below.
| Serial No. | Tube Section | Plate Current (Ip) | Transconductance (uMhos) | ||||
|---|---|---|---|---|---|---|---|
| Factory Spec | Result | % Ip | Factory Spec | Result | % Gm | ||
| SR: 301097 | Triode 1 | 100.0 mA | 71.0 mA | 71% | 5800 uMhos | 4630 uMhos | 80% |
| Triode 2 | 100.0 mA | 71.6 mA | 72% | 5800 uMhos | 4520 uMhos | 78% | |
| SR: 301117 | Triode 1 | 100.0 mA | 74.4 mA | 74% | 5800 uMhos | 4590 uMhos | 79% |
| Triode 2 | 100.0 mA | 62.8 mA | 63% | 5800 uMhos | 4410 uMhos | 76% | |
| SR: 301018 | Triode 1 | 100.0 mA | 73.0 mA | 73% | 5800 uMhos | 4630 uMhos | 80% |
| Triode 2 | 100.0 mA | 79.4 mA | 79% | 5800 uMhos | 4740 uMhos | 82% | |
| SR: 301098 | Triode 1 | 100.0 mA | 75.8 mA | 76% | 5800 uMhos | 4740 uMhos | 82% |
| Triode 2 | 100.0 mA | 70.0 mA | 70% | 5800 uMhos | 4510 uMhos | 78% | |
Note: Custom duties and taxes are the responsibility of the buyer in their country.
Note : We have more than 100 Pcs
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