Version 1: DIY kits (not contain tube 12AX7*2 and 12AU7*2) customer assembly is required.
Version 2: Finished board (not contain tube 12AX7*2 and 12AU7*2) it&39;s already assembled.
Version 3: Finished board (contain China tube 12AX7*2 and 12AU7*2) it&39;s already assembled.
Input voltage: AC 220V+AC 10V+AC 6.3V. (High pressure range 200V-260V)
PCB size: 155*121mm.
Tube: 12AX7*2+12AU7*2+6Z4*2.
![21](https://ae01.alicdn.com/kf/H5baba93231754b918d44b323301dd756B.jpg)
![22](https://ae01.alicdn.com/kf/Hd4f3e33333dc4e11bbd965ddfb1eee86I.jpg)
![24](https://ae01.alicdn.com/kf/H45ca0e0f4b384e75ba6e19f6ae0cae15d.jpg)
![23](https://ae01.alicdn.com/kf/Hf1043770fe784c508753c26dc7c8a469F.jpg)
If you need finished products, please click the picture below.
![20190614_191648_098](https://ae01.alicdn.com/kf/Hbf1e404a3b7146888f910f19af1a70feg.jpg)