G.E.C. EF86 / 6267 – MATCHED PENTODE PAIR (2 PCS)
Made in England
Round Mesh Plate Construction
Top Ring Getter
Low-Noise Audio Pentode EF86 / 6267
New in White Box
Amplitrex AT1000 Tested
Up for sale is a matched pair (2 pcs) of ultra-rare vintage NOS G.E.C. EF86 / 6267 low-noise audio pentode vacuum tubes, supplied in individual white boxes. Made in England by the iconic General Electric Co. (G.E.C.), these sought-after British valves feature precision round mesh plate shielding construction and top ring getters. Globally revered by tone connoisseurs and audiophiles for their silky smooth highs, ultra-low microphonics, rich harmonic depth, and silent noise floor. An elite-tier matched pair upgrade for Vox AC15/AC30 V1 input channels, high-end tube preamplifiers, and vintage studio microphone circuits.
Both tubes have been fully tested on a precision Amplitrex AT1000 tube tester. Measured Plate Current (Ip in mA) and Mutual Conductance (uMhos) alongside percentage performance ratings relative to nominal factory reference specs (Reference: 3.0 mA / 1,800 uMhos) are detailed in the table below.
| Serial No. | Tube Section | Plate Current (Ip) | Mutual Conductance (uMhos) | ||||
|---|---|---|---|---|---|---|---|
| Ref Spec | Result | % Ip | Ref Spec | Result | % uMhos | ||
| SR.NO.936001 | Single Pentode | 3.0 mA | 3.6 mA | 120% | 1800 | 2200 | 122% |
| SR.NO.936002 | Single Pentode | 3.0 mA | 3.7 mA | 123% | 1800 | 2200 | 122% |
Technical Note: Custom duties and taxes are the responsibility of the buyer in their country.
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