Fullmusic 300B/N 5V Vacuum Tube Electron Tube with White Porcelain Base Mesh Anode Gold-Plated Pins

Fullmusic 300B/N 5V Vacuum Tube Electron Tube with White Porcelain Base Mesh Anode Gold-Plated Pins

Features:
- New original Fullmusic vacuum tube
- 300B/n electron tube with a white porcelain base, a mesh plate (anode), four gold-plated pins and a directly heated transistor
- Eggplant-shaped tube
- One-year warranty period
- It can be used to replace 300B tubes of different brands
- Its output power is 8.5W and it can be used for audio amplifiers

Standard working status and parameters:
- Heating voltage: 5V or 2.5V
- Heating current: 1.2A or 2.4A
- Plate voltage: 300V
- Grid voltage: -58V
- Plate resistance: 700ohms
- Plate current: 60mA
- Magnification: 3.85
- Trans-conductance: 5.7mA/V
- Grid current: 0.05μA

AC filament powered or DC filament powered:
- AC filament powered: AC filament powered grid or plate loop is connected to the center head of the filament transformer secondary.
- DC filament powered: The power loop of the grid anode is connected to the negative terminal of the filament.

Limit operating values:
- Maximum plate voltage: 450V
- Maximum plate power consumption: 40W
- Maximum plate current (when using a fixed bias): 70mA
- Maximum plate current (when self-biased): 100mA

Package Included:
- 1 x Vacuum Tube

Note:
- Items with red or blue fonts will be delivered at random. Thank you for your understanding!