Mullard (Colomar)ECC81 NOS Single Valve – Grey Plate
- Type: ECC81 / 12AT7
- Brand: Colomar (Mullard)
- Condition: New Old Stock (NOS)
- Construction: Grey Plate / Top Ring Getter
- Testing: Amplitrex AT1000
Collector Quality: This authentic valve features the desirable grey plate construction and ring getter design. It is in New Old Stock (NOS) condition and is supplied in a white box with detailed Amplitrex AT1000 laboratory test results.
Amplitrex Screened: Meticulously tested for plate current (Ip) and transconductance (Gm) against factory targets.
| Sr. No. | Test Triode | Parameter Ip (mAdc) | Result Ip (mAdc | Percentage Ip | Parameter Gm (uMhos) | Result Gm (uMhos) | Percentage Gm |
|---|---|---|---|---|---|---|---|
| 3167001 | T1 | 10.0 | 15.0 | 150% | 5500 | 6830 | 124% |
| T2 | 10.0 | 12.6 | 126% | 5500 | 6590 | 120% |
⚠️ International Buyers: Custom duties and taxes are the responsibility of the buyer in their country.
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