Telefunken ECC81/12AT7 NOS Matched Pair
Matched Pair
Double Rib Plate
Made in Germany
Available for purchase is a premium matched pair of Telefunken ECC81 vacuum tubes. These world-renowned German tubes feature the highly regarded Double Rib Plate construction and Ring Getter, known for exceptional low-noise performance and sonic transparency. Both units are New Old Stock (NOS) and are supplied in clean white boxes.
- Type: ECC81 / 12AT7 Brand: Telefunken
- Condition: New in White Boxes Construction: Double Rib Plate
- Origin: Made in Germany Testing: Amplitrex AT1000
German Precision: Authentic Telefunken production featuring the iconic diamond mark on the bottom and clear factory etchings.
Audiophile Quality: Renowned for a linear frequency response, fast transients, and an incredibly low noise floor.
Laboratory Screened: Fully tested on the Amplitrex AT1000 for Plate Current (Ip) and Transconductance (Gm) against factory bogey specs.
| Sr. No. | Test Triode | Parameter Ip (mA) | Result Ip (mA) | Percentage Ip | Parameter Gm (uMhos) | Result Gm (uMhos) | Percentage Gm |
|---|---|---|---|---|---|---|---|
| 1972085 | T1 | 10.0 | 9.2 | 92.00% | 5500 | 5400 | 98.18% |
| T2 | 10.0 | 7.8 | 78.00% | 5500 | 4950 | 90.00% | |
| 1972091 | T1 | 10.0 | 10.0 | 100.00% | 5500 | 5500 | 100.00% |
| T2 | 10.0 | 9.4 | 94.00% | 5500 | 5200 | 94.54% |
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