MATSUSHITA 6267 / EF86 – MATCHED PENTODE PAIR (2 PCS)
Made in Japan
Mesh Plate / Shield Construction
Top Ring Getter
Low-Noise Audio Pentode 6267 / EF86
New in White Box
Amplitrex AT1000 Tested
Up for sale is an identically matched pair (2 pcs) of vintage NOS Matsushita 6267 / EF86 low-noise audio pentode vacuum tubes, supplied in individual white boxes. Manufactured in Japan using classic Mullard-tooled machinery, these prized Japanese valves feature perforated mesh plate shielding structures, top ring getters, and crisp factory etching. Celebrated by audiophiles and musicians for their ultra-low noise floor, exceptional microphonic rejection, and rich, detailed midrange clarity. An ideal matched pair upgrade or replacement for Vox AC15/AC30 V1 channels, high-end stereo preamplifiers, and vintage studio condenser microphone preamps.
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:5507002 | Single Pentode | 3.0 mA | 2.6 mA | 87% | 1800 | 2100 | 117% |
| SR.NO:5507005 | Single Pentode | 3.0 mA | 2.6 mA | 87% | 1800 | 2100 | 117% |
Technical Note: Custom duties and taxes are the responsibility of the buyer in their country.
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