TESTED DEAD MULLARD ECC83 / 12AX7 MC1 TUBE SQUARE GETTER FOR DISPLAY ONLY
테스트 완료 불량 MULLARD ECC83 / 12AX7 MC1 진공관 스퀘어 게터 전시용 전용
| 상품번호 | 178132788594 |
| 거래유형 | 즉시구매 |
| 출고국 | 미국 (US) |
이베이 판매가
$29.95
약 44,146원
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상품 설명
TESTED DEAD MULLARD ECC83 / 12AX7 MC1 TUBE SQUARE GETTER
***FOR DISPLAY ONLY***
***TUBE IS DEAD***
***TUBE DOES NOT WORK***
***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 = 00.5
Gain(Mu) Section B = 00.1
Tester Gain (Mu) Range = 0 - 120
Tester 12AX7 Expected Gain (Mu) value = 92
Transconductance (Gm) Section A = 263
Transconductance (Gm) Section B = 108
Tester Gm Range 0 - 9900
12AX7 tubes have a center design target of 1600Gm
Noise (dB) Section A = -72.8dB
Noise (dB) Section B = -75.2dB
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 good when tapped, Triode B tested good when tapped.
I OFFER A 100% REFUND UPON RETURN OF THE ITEM SHOULD IT NOT MEET YOUR EXPECTATIONS OR NEEDS.
LOT 2324