JAN 5814A General Electric — Matched Pair
MILITARY GRADE 12AU7 | TOP RING GETTER | USA MADE
Made in USA
JAN Military Spec
Top Ring Getter
Amplitrex Verified
JAN Military Spec
Top Ring Getter
Amplitrex Verified
Up for sale is a laboratory-matched pair of vintage JAN 5814A dual triodes by General Electric. As the ruggedized military equivalent to the 12AU7, these tubes are built for low noise and extreme durability. They are a favored choice for audiophiles seeking a balanced, musical, and reliable upgrade for preamplifier or driver stages.
Tested on the Amplitrex AT1000, the results below follow the Percentage Method relative to original factory specifications (Ip = 10.5 mA / Gm = 2200 µMhos).
| Serial No. | Side | Parameter Ip | Result Ip | % Ip | Parameter Gm | Result Gm | % Gm |
|---|---|---|---|---|---|---|---|
| 738062 | T1 | 10.5 | 8.6 | 81.9% | 2200 | 2000 | 90.9% |
| T2 | 10.5 | 9.2 | 87.6% | 2200 | 2000 | 90.9% | |
| 738296 | T1 | 10.5 | 9.2 | 87.6% | 2200 | 2000 | 90.9% |
| T2 | 10.5 | 9.2 | 87.6% | 2200 | 2000 | 90.9% |
⚠️ Note: Custom duties and taxes are the responsibility of the buyer in their country.
Note: We Have More Than 300 Pcs
NOS Audio Tubes — Global Vintage Valve Specialists
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