HIGH GM (1953, 1865) PHILIPS ECC83 / 12AX7 TUBE PLATE GETTER GAIN (90.3, 89.7)
PHILIPS ECC83 / 12AX7 진공관 플레이트 게터 게인 (90.3, 89.7) 높은 GM (1953, 1865)
| 상품번호 | 188223078600 |
| 상태 | Used |
| 거래유형 | 즉시구매 |
| 출고국 | 미국 (US) |
이베이 판매가
$69.95
약 103,106원
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상품 설명
HIGH GM (1953, 1865) PHILIPS ECC83 / 12AX7 TUBE PLATE GETTER GAIN (90.3, 89.7)
***FREE SHIPPING***
TESTED ON A MAXI PREAMP II TUBE TESTER FOR GAIN(Mu), TRANSCONDUCTANCE(Gm) AND NOISE(dB). THE MAXI PREAMP II TESTS TUBES AT 200 VDC PLATE CURRENT 4 TIMES PER SECOND.
Gain(Mu) Section A = 90.3
Gain(Mu) Section B = 89.7
Tester Gain (Mu) Range = 0 - 120
Tester 12AX7 Expected Gain (Mu) value = 92
Transconductance (Gm) Section A = 1953
Transconductance (Gm) Section B = 1865
Tester Gm Range 0 - 9900
12AX7 tubes have a center design target of 1600Gm
Noise (dB) Section A = -83.6dB
Noise (dB) Section B = -76.7dB
Tester Noise (dB) Range -92dB - 0dB
TEST RESULTS ARE SHOWN IN PHOTOGRAPHS.
While performing an audio tap test on the Maxi Preamp through a guitar amp Triode A tested excellent when tapped, Triode B tested excellent when tapped.
I OFFER A 100% REFUND UPON RETURN OF THE ITEM SHOULD IT NOT MEET YOUR EXPECTATIONS OR NEEDS.
LOT 2312