Ediswan ECC81 / 12AT7 NOS Single Tube – Black Plate Made in England
NOS Single
New In White Box
Black Plate
Top Big Ring Getter
New In White Box
Black Plate
Top Big Ring Getter
Offering a highly collectible New Old Stock (NOS) 1 Pc Ediswan ECC81 (12AT7) dual triode, Serial No. 4503001. This rare British-made valve is distinguished by its Black Plates, Double Mica spacer, and a massive Top Big Ring Getter. The tube comes in a fresh white box and has been precision-tested on the Amplitrex AT1000 Digital Tube Tester.
- Type: ECC81 / 12AT7 Brand: Ediswan
- Condition: New in White Box Construction: Black Plate / Top Big Ring Getter
- Origin: Made in England Testing: Amplitrex AT1000
Laboratory Characterization: Tested against factory reference parameters.
Performance: This specimen shows excellent transconductance, testing at 4870 uMhos (88%) for Triode 1 and 5720 uMhos (104%) for Triode 2.
Performance: This specimen shows excellent transconductance, testing at 4870 uMhos (88%) for Triode 1 and 5720 uMhos (104%) for Triode 2.
⚠️ International Buyers: Custom duties and taxes are the responsibility of the buyer in their country.
| Sr. No. | Test Triode | Parameter Ip (mA) | Result Ip (mAdc) | Percentage Ip | Parameter Gm (uMhos) | Result Gm (uMhos) | Percentage Gm |
|---|---|---|---|---|---|---|---|
| 4503001 | T1 | 10.0 | 9.0 | 90% | 5500 | 4870 | 88% |
| T2 | 10.0 | 9.4 | 94% | 5500 | 5720 | 104% |
✉️ For technical inquiries, please Email us
Whatsapp: +1 (630) 597-3966
![Lot 100pcs.NOS NIB 7193 [2C22] RCA Made In U.S.A. Black Rods Support](https://i0.wp.com/www.nosaudiotubes.com/wp-content/uploads/2023/01/7193-03.jpg?resize=250%2C188&ssl=1)
Reviews
There are no reviews yet