AMPEREX 6922 / E88CC – MATCHED PAIR 2 PCS
GRADE: PLATINUM SERIES | HOLLAND AUDIO SPEC
Gold Pins
Grey Plate
Top Ring Getter
Dual Triode / Preamplifier
New in White Box
Amplitrex AT1000 Tested
Up for sale is a matched pair (2 pieces) of vintage Platinum Grade Amperex 6922 / E88CC audio preamplifier tubes, brand new in individual white boxes. Manufactured in Holland, these highly sought-after audiophile tubes feature classic grey plates, top-mounted halo ring getters, and corrosion-resistant gold pins. Renowned in high-end audio for their warm, expansive soundstage and exceptional detail retrieval.
As shown, both tubes have been thoroughly tested on our laboratory-grade Amplitrex AT1000 tube tester. The measured plate current (Ip) and mutual conductance (Gm) results are calculated against nominal factory specifications (15.0 mA / 12,500 µMhos) and detailed in the table below.
| Serial No. | Triode Section | Plate Current (Ip) | Transconductance (Gm) | ||||
|---|---|---|---|---|---|---|---|
| Factory Spec | Result | % Ip | Factory Spec | Result | % Gm | ||
| SR: 1819001 | Triode 1 (T1) | 15.0 mA | 12.2 mA | 81% | 12,500 µMhos | 10,920 µMhos | 87% |
| Triode 2 (T2) | 15.0 mA | 5.4 mA | 36% | 12,500 µMhos | 11,420 µMhos | 91% | |
| SR: 5367001 | Triode 1 (T1) | 15.0 mA | 16.6 mA | 111% | 12,500 µMhos | 15,040 µMhos | 120% |
| Triode 2 (T2) | 15.0 mA | 11.4 mA | 76% | 12,500 µMhos | 12,210 µMhos | 98% | |
Technical Note: Custom duties and taxes are the responsibility of the buyer in their country.
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