Telefunken ECC81/12AT7 Grey Plate
NOS
Diamond Bottom
Small Ring Getter
Made in Germany
Diamond Bottom
Small Ring Getter
Made in Germany
Available for purchase is a premium matched pair of Telefunken ECC81 vacuum tubes. These authentic German-made valves feature the legendary Diamond Bottom mold mark, Grey Plates, and a Small Ring Getter. These New Old Stock (NOS) units are renowned for their low noise floor and clinical transparency.
- Type: ECC81 / 12AT7 Brand: Telefunken
- Condition: New in White Boxes Construction: Grey Plate / Diamond Bottom
- Origin: Made in Germany Testing: Amplitrex AT1000
Authenticity Guaranteed: Features the iconic Telefunken diamond mark embossed in the glass base and clear factory “MADE IN GERMANY” print.
Amplitrex Screened: Fully laboratory tested for Plate Current (Ip) and Transconductance (Gm) against factory bogey targets .
Amplitrex Screened: Fully laboratory tested for Plate Current (Ip) and Transconductance (Gm) against factory bogey targets .
⚠️ International Buyers: Custom duties and taxes are the responsibility of the buyer in their country.
| Sr. No. | Test Triode | Parameter Ip (mA) | Result Ip (mA) | Percentage Ip | Parameter Gm (uMhos) | Result Gm (uMhos) | Percentage Gm |
|---|---|---|---|---|---|---|---|
| 1982009 | T1 | 10.0 | 10.1 | 101.00% | 5500 | 5010 | 91.09% |
| T2 | 10.0 | 9.2 | 92.00% | 5500 | 5300 | 96.36% |
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