Trigon ECC81 NOS – Matched Pair
NOS Matched Pair
Original Box
Grey Plate
Halo Getter
Original Box
Grey Plate
Halo Getter
Available for purchase is a tightly matched pair of 2 pcs Trigon ECC81 vacuum tubes. These high-quality valves are Made in England and feature Grey Plates with a Top Halo Getter. Both units are New Old Stock (NOS) and are supplied in their original yellow and black Trigon factory boxes.
- Type: ECC81 / 12AT7 Brand: Trigon
- Condition: NOS in Original Boxes Construction: Grey Plate / Halo Getter
- Origin: England Testing: Amplitrex AT1000
Vintage British Quality: Branded by Trigon (England), these tubes provide excellent sonic performance and reliability.
Precision Laboratory Testing: Fully screened on the Amplitrex AT1000 for Plate Current (Ip) and Transconductance (Gm) against factory bogey targets.
Precision Laboratory Testing: Fully screened on the Amplitrex AT1000 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 |
|---|---|---|---|---|---|---|---|
| 2144003 | T1 | 10.0 | 10.0 | 100.00% | 5500 | 5300 | 96.36% |
| T2 | 10.0 | 9.4 | 94.00% | 5500 | 5000 | 90.91% | |
| 2144004 | T1 | 10.0 | 10.0 | 100.00% | 5500 | 5400 | 98.18% |
| T2 | 10.0 | 8.4 | 84.00% | 5500 | 4880 | 88.73% |
✉️ For technical inquiries, please Email us at [email protected]
Whatsapp: +1 (630) 597-3966
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