Telefunken ECC81/12AT7 NOS Matched Pair Single Rib
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 2 pcs Telefunken ECC81 vacuum tubes. These authentic German-made valves feature the legendary Diamond Bottom mold mark and a Small Ring Getter. These New Old Stock (NOS) units are renowned for their clinical transparency and low noise floor.
- Type: ECC81 / 12AT7 Brand: Telefunken
- Condition: New in White Boxes Construction: 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 etchings.
Precision Testing: Fully laboratory screened on the Amplitrex AT1000 for Plate Current (Ip) and Transconductance (Gm) against factory targets.
Precision Testing: Fully laboratory screened on the Amplitrex AT1000 for Plate Current (Ip) and Transconductance (Gm) against factory 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 |
|---|---|---|---|---|---|---|---|
| 1982003 | T1 | 10.0 | 7.8 | 78.00% | 5500 | 4930 | 89.64% |
| T2 | 10.0 | 8.2 | 82.00% | 5500 | 5270 | 95.82% | |
| 1982011 | T1 | 10.0 | 6.6 | 66.00% | 5500 | 4360 | 79.27% |
| T2 | 10.0 | 8.2 | 82.00% | 5500 | 5050 | 91.82% |
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