Ultron 12AT7 / ECC81 NOS
NOS
Original Box
Short Grey Plate
Top Ring Getter
Original Box
Short Grey Plate
Top Ring Getter
Available for purchase is a high-quality Ultron 12AT7 / ECC81 vacuum tube. This unit features a robust Short Grey Plate construction, Double Mica spacers, and a Top Ring Getter. It is New Old Stock (NOS) and comes in its original orange and blue factory box.
- Type: 12AT7 / ECC81 Brand: Ultron
- Condition: NOS in Original Box Construction: Double Mica / Short Grey Plate
- Origin: Germany (Ultron Selection) Testing: Amplitrex AT1000
Ultron Precision: Features the distinctive Ultron crown logo and “ECC 81 / 12AT7” markings clearly printed on the glass envelope.
Precision Laboratory Testing: Fully screened on the Amplitrex AT1000 for Plate Current (Ip) and Transconductance (Gm) against factory bogey targets
Precision Laboratory Testing: Fully screened on the Amplitrex AT1000 for Plate Current (Ip) and Transconductance (Gm) against factory bogey targets
⚠️ International Buyers: Custom duties and taxes are the responsibility of the buyer in their country.
| Sr. No. | Test Triode | Parameter Ip (mA) | Result Ip (mA) | Percentage Ip | Parameter Gm (uMhos) | Result Gm (uMhos) | Percentage Gm |
|---|---|---|---|---|---|---|---|
| 2109002 | T1 | 10.0 | 9.2 | 92.00% | 5500 | 4760 | 86.55% |
| T2 | 10.0 | 10.8 | 108.00% | 5500 | 5500 | 100.00% |
✉️ For technical inquiries, please Email us
Whatsapp: +1 (630) 597-3966
Reviews
There are no reviews yet