Vintage Philips DARIO ECC83 / 12AX7 Tube | Green Logo French Production | Kalibr
빈티지 Philips DARIO ECC83 / 12AX7 진공관 | 그린 로고 프랑스 생산 | Kalibr
| 상품번호 | 198404875893 |
| 상태 | Used |
| 거래유형 | 즉시구매 |
| 출고국 | 미국 (US) |
이베이 판매가
$70
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상품 설명
About our testing methodology
To provide full transparency, our laboratory testing uses a professional Kalibr L3-3 tube tester. Since this device uses specific internal scales rather than direct mA/V readouts, each value is physically calculated to ensure precision.
- Example of our calculation (Transconductance S):
Using a raw Kalibr reading of 72.6 on a standard scale of 150 with a multiplier of 3:
(72.6 x 3) / 150 = 1.45 mA/V - Percentage vs. Factory Specs:
We then benchmark this result against the factory nominal value for a new tube (e.g., 1.6 mA/V for an ECC83):
(1.45 / 1.6) x 100 = 90.8% of factory specification.