This is one assembeld board.

  This board is directly engraved British music aristocrats A-N original machine circuit parameters .  can be used in most of the tube preamplifier tube amp discharge tube amp amplifier voltage amplification push level. Filament voltage 12.6v and 6.3v or direct heat Tube 5v 4v 2.7v ( need change the voltage regulator ic )

PSU board  PCB Size:122x133mm  

input voltage:     AC300V-0-AC300V       0-AC6.3V    0-AC13.6V

Output voltage:  DC250V-300V (Adjustable)          DC12V   ( can adjust this voltage by change the voltage regulator ic)

Using Tube:  ECL82  and   6X5GT（ 6Z5P ）

The default price are not include the tubes.

we have the suitable transformer for this board. if you need. Please contact us. thanks