Philips ECC81 / 12AT7 NOS Matched Pair – Grey Rib Plate Made in Holland
NOS Matched Pair
New In Original Box
Grey Rib Plate
Ring Getter
New In Original Box
Grey Rib Plate
Ring Getter
Offering a premium matched pair of 2 pcs Philips ECC81 (12AT7) dual triodes, Serial Nos. 241003 and 241007. These authentic Dutch-manufactured valves feature Grey Ribbed Plates and a Ring Getter. Both units are New Old Stock (NOS) in their original Philips yellow and blue packaging and have been laboratory tested on the Amplitrex AT1000.
- Type: ECC81 / 12AT7 Brand: Philips
- Condition: New in Original Box Construction: Grey Rib Plate / Ring Getter
- Origin: Made in Holland Testing: Amplitrex AT1000
Laboratory Characterization: Tested against reference parameters .
Performance: This pair exhibits excellent balance and high emission levels, with results reaching up to 105% of factory spec.
Performance: This pair exhibits excellent balance and high emission levels, with results reaching up to 105% of factory spec.
⚠️ International Buyers: Custom duties and taxes are the responsibility of the buyer in their country.
| Sr. No. | Test Triode | Result Ip (mAdc) | Percentage Ip | Result Gm (uMhos) | Percentage Gm | Mu |
|---|---|---|---|---|---|---|
| 241003 | T1 | 9.6 | 96% | 5440 | 99% | 54.4 |
| T2 | 10.6 | 106% | 5580 | 101% | 55.8 | |
| 241007 | T1 | 11.0 | 110% | 5600 | 102% | 56.0 |
| T2 | 11.4 | 114% | 5790 | 105% | 57.9 |
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