RCA 12AX7A NOS Matched Pair-Short Grey Plate Top Ring Getter Made in USA
NOS Matched Pair
New In White Box
Short Grey Plate
Top Ring Getter
New In White Box
Short Grey Plate
Top Ring Getter
Offering a laboratory-matched pair of New Old Stock (NOS) 2 Pcs RCA 12AX7A dual triodes, Serial Nos. 1644008 and 1644022. These classic American-made valves feature Short Grey Plates and Top Ring Getters for stable, low-noise operation. Supplied in clean white protective boxes, these have been precision tested on the Amplitrex AT1000.
- Type: 12AX7A Brand: RCA
- Condition: New in White Box Construction: Short Grey Plate / Top Ring Getter
- Origin: Made in USA Testing: Amplitrex AT1000
Laboratory Characterization: Tested against factory reference parameters for 12AX7. These RCA units provide the iconic warm, detailed “American Sound” preferred for both hi-fi and guitar amplification.
⚠️ International Buyers: Custom duties and taxes are the responsibility of the buyer in their country.
| Sr. No. | Triode Triode | Parameter Ip (mAdc) | Result Ip (mAdc) | Percentage Ip | Parameter Gm (uMhos) | Result Gm (uMhos) | Percentage Gm |
|---|---|---|---|---|---|---|---|
| 1644008 | T1 | 1.2 | 1.1 | 92% | 1600 | 1500 | 94% |
| T2 | 1.2 | 0.8 | 67% | 1600 | 1300 | 81% | |
| 1644022 | T1 | 1.2 | 0.9 | 75% | 1600 | 1500 | 94% |
| T2 | 1.2 | 0.7 | 58% | 1600 | 1300 | 81% |
✉️ For technical inquiries, please Email us at [email protected]
Whatsapp: +1 (630) 597-3966
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