Ediswan CV455 (12AT7) NOS Matched Pair
NOS Matched Pair
New In Original Box
Black Plate
Top Ring Getter
New In Original Box
Black Plate
Top Ring Getter
Offering a laboratory-characterized matched pair of New Old Stock (NOS) 2 Pcs Ediswan CV455 (Military 12AT7 / ECC81) dual triodes, Serial Nos. 1724012 and 1724011. These premium British-made valves feature highly desirable Black Plates and Top Ring Getters. Both tubes come in their Original Ediswan Boxes and have been precision tested on the Amplitrex AT1000.
- Type: CV455 (Military ECC81 / 12AT7) Brand: Ediswan
- Condition: NOS in Original Box Construction: Black Plate / Top Ring
- Origin: Made in Great Britain Testing: Amplitrex AT1000
Precision Characterization: Tested against factory reference parameters (Ip=10.0, Gm=5500). The CV455 is the high-reliability military version of the 12AT7, known for its robust build and low noise.
⚠️ International Buyers: Custom duties and taxes are the responsibility of the buyer in their country.
| Sr. No. | Triode | Parameter Ip (mA) | Result Ip (mAdc) | Percentage Ip | Parameter Gm (uMhos) | Result Gm (uMhos) | Percentage Gm |
|---|---|---|---|---|---|---|---|
| 1724012 | T1 | 10.0 | 10.0 | 100% | 5500 | 5900 | 107% |
| T2 | 10.0 | 9.2 | 92% | 5500 | 5950 | 108% | |
| 1724011 | T1 | 10.0 | 8.6 | 86% | 5500 | 5900 | 107% |
| T2 | 10.0 | 8.4 | 84% | 5500 | 5700 | 103% |
✉️ For technical inquiries, please Email us at [email protected]
Whatsapp: +1 (630) 597-3966
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