Sylvania 12AX7 NOS Single
NOS Single Tube
New In White Box
Grey Plate
Square Getter
New In White Box
Grey Plate
Square Getter
Offering a premium New Old Stock (NOS) 1 Pc Sylvania 12AX7 dual triode, Serial No. 4574001. This vintage American-made tube features Grey Plates and the highly sought-after Square Getter construction. Known for their detailed transients and legendary “Sylvania air,” these square getter variants represent the pinnacle of 1950s/60s vacuum tube manufacturing. This unit is supplied in a New White Box and has been precision characterized on the Amplitrex AT1000.
- Type: 12AX7 / ECC83 Brand: Sylvania
- Condition: NOS in White Box Construction: Grey Plate / Square Getter
- Origin: Made in USA Testing: Amplitrex AT1000
Laboratory Characterization: Tested against factory reference parameters for 12AX7 (Ip=1.2, Gm=1600). This specimen is Perfectly Matched across both triodes for transconductance
⚠️ International Buyers: Custom duties and taxes are the responsibility of the buyer in their country.
| Sr. No. | Triode | Parameter Ip (mA) | Result Ip (mAdc) | Percentage Ip | Parameter Gm (uMhos) | Result Gm (uMhos) | Percentage Gm |
|---|---|---|---|---|---|---|---|
| 4574001 | T1 | 1.2 | 1.5 | 125% | 1600 | 2000 | 125% |
| T2 | 1.2 | 1.5 | 125% | 1600 | 2000 | 125% |
✉️ For technical inquiries, please Email us at [email protected]
Whatsapp: +1 (630) 597-3966
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