RFT 12AX7A/ECC83 – Grey Ribbed Plate Top Ring Getter Made in Germany
NOS Single Tube
New In Original Box
Grey Ribbed Plate
Top Ring Getter
New In Original Box
Grey Ribbed Plate
Top Ring Getter
Offering a premium New Old Stock (NOS) 1 Pc RFT 12AX7A dual triode, Serial No. 3660001. This authentic German-made valve features Grey Ribbed Plates and a Top Ring Getter. Known for their tight tolerances and excellent performance in high-gain applications, this tube is supplied in its Original Box and has been precision characterized on the Amplitrex AT1000.
- Type: 12AX7A / ECC83 Brand: RFT
- Condition: New in Original Box Construction: Grey Ribbed Plate
- Origin: Made in Germany Testing: Amplitrex AT1000
Laboratory Characterization: Tested against factory reference parameters for 12AX7 . This RFT unit demonstrates very strong performance, significantly exceeding nominal specifications on both triode sections.
⚠️ 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 |
|---|---|---|---|---|---|---|---|
| 3660001 | T1 | 1.2 | 1.5 | 125% | 1600 | 1900 | 119% |
| T2 | 1.2 | 1.5 | 125% | 1600 | 1800 | 113% |
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