This is a bare PCB of a tube preamplifier with the gain section reference to MFA reference. MFA Reference was well-regardless as an preamplifier that has massive soundstage and rich of low-level musical information.
Each board consists of two channel thus one board can be used for stereo application.
We provide schematic to buyers by EMAIL.
PCB Dimension : 201mm x 152mm
Board Thickness : 1.6mm
Copper thickness : 75um ( 4 times normal thickness) ; tin-plated surface.

