Sylvania JAN 12SN7GT – Black Plate / Black Base NOS Matched Pair
NOS Matched Pair
Military Grade (JAN)
Black Plate
Clear Glass
Military Grade (JAN)
Black Plate
Clear Glass
Offering a premium matched pair (2 Pcs) of Sylvania JAN 12SN7GT dual triodes, Serial Nos. 1786003 and 1786011. These military-standard valves feature rugged Black Plate construction, Clear Glass, and a traditional Black Base. As the 12V heater version of the legendary 6SN7, these tubes provide the same classic Sylvania “house sound” with excellent detail and headroom. Both units are New in Original Government Boxes and have been fully tested on the Amplitrex AT1000.
- Type: 12SN7GT Brand: Sylvania
- Condition: New in Original Gvt Box Construction: Black Plate / Clear Glass
- Origin: Made in USA Testing: Amplitrex AT1000
| Sr. No. | Test Triode | Parameter Ip (mAdc) | Result Ip (mAdc) | % Ip | Param Gm (uMhos) | Result Gm (uMhos) | % Gm |
|---|---|---|---|---|---|---|---|
| 1786003 | T1 | 9.0 | 10.2 | 113.3% | 2700 | 2900 | 107.4% |
| T2 | 9.0 | 8.8 | 97.8% | 2700 | 2700 | 100.0% | |
| 1786011 | T1 | 9.0 | 9.8 | 108.9% | 2700 | 2900 | 107.4% |
| T2 | 9.0 | 9.4 | 104.4% | 2700 | 2700 | 100.0% |
✉️ For technical inquiries, please Email us at [email protected]
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