E810F CV5809 Mullard
- ✅ Brand / Type: Mullard
- ✅ Plate Type: Grey Plate
- ✅ Country of Origin: Made in Holland
- ✅ Base: Black Base
- ✅ Condition: New in GVT Box
- ✅ Getter: Ring Getter
Testing Information
The tube has been tested on Amplitrex AT1000 Tube Tester.
| Serial No. | Test | Ip (mAdc) | uMhos |
| 5052005 | T1 | 10.0 | 18650 |
About This Tube
The Mullard E810F / CV5809 is a premium high-transconductance pentode designed for professional communication systems, laboratory equipment, and high-end audio applications.
Its extremely low noise floor, fast response, and excellent linearity make it highly desirable for phono stages, microphone preamps, and precision control circuits.
The Holland-made Mullard CV5809 versions are especially sought after for their durability, stable performance, and warm, detailed sonic character.














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