Product Details:

LS9D tube regulator PCB ARC tube regulator circuit 6Z4 rectifier, 12AT7 for voltage comparison, 12B4A to do the adjustment, the voltage from 150V ~ 400V adjustable With two sets of filament regulator, can output 6.3V or 12.6V voltage (need to replace the components) Size: Length 230mm × width 125mm Package Included: Power supply board pcb x 1

Not included any parts ！