**DC/12V Tube Preamp Power Supply**, suitable for various preamp boards such as 6N8, 6N11, 6N1, 6N2, etc. The board features dual power outputs:
1. **Low-voltage AC 6.3V** for filament heating.
2. **High-voltage DC output** around 210V (no-load voltage is 380V, but during operation, it stabilizes at 210V, which does not affect usage).
The double-sided PCB board is designed with shielded circuits and dual-capacitor filtering for enhanced anti-interference performance. It is ideal for DIY enthusiasts and modifications. For the input, a **DC/12V switching power supply** is recommended to ensure no background noise. If you have any questions after receiving the product, feel free to contact customer service for assistance!
**Product Specifications:**
- Board dimensions: 70mm x 90mm
- Input voltage: DC/12V 3A
- Output voltage: 210-320V
**Default configuration for shipping:**
- Input: DC/12V
- Output: 6.3V and 210V
