Siemens ECC81 NOS Matched Pair
NOS
Matched Pair (2 Pcs)
Gray Plate
Ring Getter
Matched Pair (2 Pcs)
Gray Plate
Ring Getter
Available for purchase is a premium matched pair of 2 pcs Siemens ECC81 vacuum tubes. These authentic Made in Germany valves feature classic Gray Plate construction and Ring Getters. These New Old Stock (NOS) units are highly regarded for their German engineering precision and long-term reliability.
- Type: ECC81 / 12AT7 Brand: Siemens
- Condition: New in White Boxes Construction: Gray Plate
- Origin: Made in Germany Testing: Amplitrex AT1000
Laboratory Matched: Each tube has been fully 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 |
|---|---|---|---|---|---|---|---|
| 3437006 | T1 | 10.0 | 6.0 | 60.00% | 5500 | 4300 | 78.18% |
| T2 | 10.0 | 6.8 | 68.00% | 5500 | 4900 | 89.09% | |
| 3437009 | T1 | 10.0 | 6.6 | 66.00% | 5500 | 4500 | 81.82% |
| T2 | 10.0 | 7.0 | 70.00% | 5500 | 4750 | 86.36% |
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