Normally the power supply should start up at a voltage that is between the two limits set by the tolerances of the controller and the UV resistors. It should also start up before you reach the minimum ...

NAMM 2025: AmpRx has unveiled Brownie, an voltage optimising power supply that’s designed to give your tube amp exactly what ...

Practically all computer power supplies, and most any consumer equipment with a switching power supply (SMPS), will run from 100 to 240 volts ac, 50 to 60 Hz. More options Report Add bookmark Share ...