PHILIPS MINIWATT 12SN7GT – 2 PCS
BLACK BASE | LABORATORY VERIFIED NOS
Black BaseNew in Original Boxes (NOS)
Made in Holland
Amplitrex AT1000 Tested
Offered here is an exceptional vintage matched pair lot of 2 premium PHILIPS MINIWATT 12SN7GT dual-triode audio valves, pristine and outstandingly preserved in their original yellow and teal vintage boxes. Made in Holland, these highly coveted vintage tubes feature a distinctive Half Black Coated Glass design and a robust Black Base configuration, legendary for their rich analog warmth, incredible musical detail, and ultra-quiet operation.
Each individual valve has been thoroughly tested and verified on our laboratory-grade Amplitrex AT1000 digital tube analyzer. Following the exact formatting layout verified in image’s, the comprehensive data table below provides the full side-by-side factory parameters alongside the laboratory-measured test results for both triode sections.
| Serial No. | Test Triode | Parameter Ip mAdc | Result Ip mAdc | % Ip | Parameter Gm uMhos | Result Gm uMhos | % Gm |
|---|---|---|---|---|---|---|---|
| 943001 | T1 | 9.0 | 7.6 | 84% | 2600 | 2500 | 96% |
| T2 | 9.0 | 8.6 | 96% | 2600 | 2600 | 100% | |
| 943008 | T1 | 9.0 | 8.6 | 96% | 2600 | 2650 | 102% |
| T2 | 9.0 | 10.8 | 120% | 2600 | 2900 | 112% |
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