Sylvania 6L6GC
GRADE: PLATINUM SERIES | LABORATORY VERIFIED | NOS/VINTAGE STOCK
Grey Plate & Black Base Construction
Made in USA
Amplitrex AT1000 Digital Testing
Offered here is a precision-matched pair of vintage Sylvania 6L6GC power vacuum tubes. These American-made classics feature the robust Grey Plate, Black Base structure and Top Ring Getter, renowned for their high power handling and classic warm tonal signature. Whick comes in new in original GVT box
Both tubes have been thoroughly analyzed on the Amplitrex AT1000 digital tester. Following our Percentage Method, the results below show how each tube performs relative to the 100% factory design-center specifications for this tube type (Ip = 72.0mA / Gm = 6000 µMhos).
| Serial No. | Parameter Ip mAdc | Result Ip mAdc | % Ip mAdc | Parameter Gm uMhos | Result Gm uMhos | % Gm uMhos |
|---|---|---|---|---|---|---|
| 107004 | 72.0 | 68.2 | 95% | 6000 | 5790 | 96.5% |
| 107005 | 72.0 | 83.9 | 117% | 6000 | 6470 | 107.8% |
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