1958 12AX7 ECC83 Philips Amperex Tube Long Plate D Getter TV7 Test Good E-92
1958년산 12AX7 ECC83 Philips Amperex 진공관 롱 플레이트 D 게터 TV7 테스트 완료 양호 E-92
| 상품번호 | 398081499627 |
| 상태 | Used |
| 거래유형 | 즉시구매 |
| 출고국 | 미국 (US) |
이베이 판매가
$140
약 206,360원
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상품 설명
12AX7 / ECC83 Phillips Tube. Made In Holland.
- Manufactured in Heerlen, Holland in1958
TV-7D/U: Tested Good.
- Twin-Triode Vacuum Tube
- Triode:1 Tested Good: 44/ 32 Baseline.
- Triode: 2 Tested NOS: 50/ 32 Baseline.
- Ribbed Long Plate
- Cross Top
- Top D Getter.
- Date Code: Delta 8 1
Testing & Condition
- Minimum reading: 65% (per original 32 baseline; military standard).
- Tubes test NOS and meet or exceed published GM data.
- All tubes tested for gas, shorts, transconductance, and emissions.
- TV-7 tested (calibrated, military-standard tester).
About NOS & Testing
- NOS tubes fall within the GM range published in the RCA Receiving Tube Manual; variation above/below average is normal.
- No universal test result defines NOS. Typically, NOS tubes measure between average and maximum micromhos.
- Different testers (even identical models) may produce different readings.
- 100% meter readings are not required?passing = meeting spec range or minimum (TV-7: ~65%).
- 12AX7 Minimum Range: 32.
- 12AX7 Nos Range 45 +.