Toshiba 12AU7/ECC82 Matched Pair – Long Grey Plate Top Ring Getter Made in Japan
NOS Matched Pair
Long Grey Plate
Top Ring Getter
Original Box
Long Grey Plate
Top Ring Getter
Original Box
Available now is a premium matched pair (2 Pcs) of Toshiba 12AU7 vacuum tubes, Serial Nos. 2058019 and 2058038. These vintage Japanese-made triodes feature desirable Long Grey Plates and Top Ring Getters, known for their balanced, musical tonality and low microphony. Manufactured in Japan by Toshiba, these units come in their Original Boxes and represent excellent quality from the golden era of Japanese tube production. Each tube has been fully characterized on the Amplitrex AT1000 for professional-grade accuracy.
- Type: 12AU7 / ECC82 Brand: Toshiba
- Condition: New in Original Box Construction: Long Grey Plate / Top Ring Getter
- Origin: Made in Japan Testing: Amplitrex AT1000
Laboratory Characterization: Tested against 12AU7 factory parameters. Tube 2058019 shows excellent triode balance with a plate current of 9.4/10.0 mA.
⚠️ International Buyers: Custom duties and taxes are the responsibility of the buyer in their country.
| Sr. No. | Test Triode | Parameter Ip (mAdc) | Result Ip (mAdc) | Percentage Ip | Parameter Gm (uMhos) | Result Gm (uMhos) | Percentage Gm |
|---|---|---|---|---|---|---|---|
| 2058019 | T1 | 10.5 | 9.4 | 90% | 2200 | 1900 | 86% |
| T2 | 10.5 | 10.0 | 95% | 2200 | 1900 | 86% | |
| 2058038 | T1 | 10.5 | 8.0 | 76% | 2200 | 1900 | 86% |
| T2 | 10.5 | 8.4 | 80% | 2200 | 1900 | 86% |
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