RFT ECC81 / 12AT7 NOS Single Tube – Short Grey Plate Made in Germany
Double Mica
New In Original Box
Short Grey Plate
Big Ring Getter
New In Original Box
Short Grey Plate
Big Ring Getter
Offering a premium New Old Stock (NOS) 1 Pc RFT ECC81 / 12AT7 dual triode, Serial No. 4533004. This authentic German-manufactured valve features Short Grey Plates, Double Mica construction for low microphonics, and a Big Ring Getter. The unit is preserved in its original RFT colorful packaging and has been laboratory tested on the Amplitrex AT1000.
- Type: ECC81 / 12AT7 Brand: RFT
- Condition: New in Original Box Construction: Short Grey Plate / Double Mica
- Origin: Made in Germany Testing: Amplitrex AT1000
Laboratory Characterization: Tested against factory reference parameters.
Performance: This tube displays excellent triode balance and is very close to factory-new specifications, with Triode 1 testing at 96% for plate current and 100% for transconductance.
Performance: This tube displays excellent triode balance and is very close to factory-new specifications, with Triode 1 testing at 96% for plate current and 100% for transconductance.
⚠️ International Buyers: Custom duties and taxes are the responsibility of the buyer in their country.
| Sr. No. | Test Triode | Parameter Ip (mA) | Result Ip (mAdc) | Percentage Ip | Parameter Gm (uMhos) | Result Gm (uMhos) | Percentage Gm |
|---|---|---|---|---|---|---|---|
| 4533004 | T1 | 10.0 | 9.6 | 96% | 5500 | 5500 | 100% |
| T2 | 10.0 | 9.8 | 98% | 5500 | 5440 | 99% |
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