VALVO EF86 / 6267 – MATCHED PAIR (2 PCS)
GRADE: PLATINUM SERIES | VINTAGE HOLLAND MANUFACTURE
Valvo Vintage Audio Pentode
EF86 / 6267 Specification
Rare Mesh Plate
Ring Getter
Date Codes: D6F4 & D4C3
New in White Box
Amplitrex AT1000 Tested
Up for sale is a matched pair (2 Pcs) of highly sought-after vintage NOS Valvo EF86 / 6267 audio pentode valves, manufactured in Holland date codes D6F4 and D4C3. These rare audio-grade tubes feature coveted mesh plate , a classic ring getter, and bright white Valvo logo screening. Celebrated by audiophiles and tube mic/preamp enthusiasts for ultra-low microphonics, holographic spatial soundstaging, and exquisite harmonic depth.
This pair has been tested on an Amplitrex AT1000 automated valve tester at nominal reference settings. Plate Current (Ip) and Transconductance (uMhos) measurements alongside percentage performance ratings relative to standard factory specs are detailed in the table below.
| Serial No. | Tube Section | Plate Current (Ip) | Transconductance (uMhos) | ||||
|---|---|---|---|---|---|---|---|
| Ref Spec | Result | % Ip | Ref Spec | Result | % Gm | ||
| SR.NO. 1526025 | Pentode | 3.0 mA | 3.6 mA | 120% | 1800 uMhos | 2200 uMhos | 122% |
| SR.NO. 1526073 | Pentode | 3.0 mA | 3.7 mA | 123% | 1800 uMhos | 2200 uMhos | 122% |
Technical Note: Custom duties and taxes are the responsibility of the buyer in their country.
Note: We have more than 60 Pcs
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