Mullard ECC81 NOS Matched Pair – Gray Plate
NOS Matched Pair
White Box
Gray Plate
Ring Getter
White Box
Gray Plate
Ring Getter
Available for purchase is a premium matched pair of 2 pcs Mullard ECC81 vacuum tubes. These desirable Great Britain manufactured valves feature Gray Plate construction and Ring Getters. Both units are New Old Stock (NOS) and are supplied in clean white replacement boxes.
- Type: ECC81 / 12AT7 Brand: Mullard
- Condition: New in White Boxes Construction: Gray Plate / Ring Getter
- Origin: Made in Great Britain Testing: Amplitrex AT1000
British Audio Heritage: Features the iconic Mullard shield logo and “MADE IN GREAT BRITAIN” print on the glass envelope.
Precision Laboratory Testing: Fully screened on the Amplitrex AT1000 for Plate Current (Ip) and Transconductance (Gm) against factory targets.
Precision Laboratory Testing: 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 |
|---|---|---|---|---|---|---|---|
| 2272047 | T1 | 10.0 | 9.0 | 90.00% | 5500 | 5500 | 100.00% |
| T2 | 10.0 | 9.2 | 92.00% | 5500 | 5700 | 103.64% | |
| 2272078 | T1 | 10.0 | 8.2 | 82.00% | 5500 | 5400 | 98.18% |
| T2 | 10.0 | 10.4 | 104.00% | 5500 | 5700 | 103.64% |
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