MULLARD ECC81 (12AT7) — Top Square Getter
Grade: Gold Series
Laboratory Verified
Made in Great Britain
Laboratory Verified
Made in Great Britain
Rare Top Square Getter
Grey Plate Construction
Vintage Mullard BVA Branding
Amplitrex AT1000 Digital Testing
Grey Plate Construction
Vintage Mullard BVA Branding
Amplitrex AT1000 Digital Testing
Available for purchase is a single Mullard ECC81 / 12AT7 dual-triode valve, manufactured in Great Britain. This specific unit is a highly sought-after vintage variant featuring the Top Square Getter and classic grey plate internal structure.
Renowned for its “British Sound”—characterized by warm mid-tones and a lush, musical texture—this Mullard ECC81 has been fully characterized on the Amplitrex AT1000 digital laboratory tester. We provide the results below using our transparent Percentage Method against original factory design parameters.
| Serial No. | Parameter Ip mAdc | Result T1/T2 Ip | % Ip (Avg) | Parameter Gm uMhos | Result T1/T2 Gm | % Gm (Avg) |
|---|---|---|---|---|---|---|
| #3512006 | 10.0 | 6.0 / 6.0 | 60% | 5500 | 4080 / 4080 | 74% |
Note to Buyers: Custom duties and taxes are the responsibility of the buyer in their country. All tubes are securely packed for international transport.
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Precision Verified — NOS Audio Tubes
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