VPS1 Tube Mic Power Supply Kit

The VPS1 kit lets you build a premium power supply for your tube microphone. Unlike most tube mic power supplies on the market, ours does not use diodes to set the output voltage. Diodes add noise, and allow the output voltage to drift. The voltage drift causes nonlinear behavior from the mic's vacuum tube, which in turn affects the sound of the mic. The VPS1 power supply was designed by Scott Hampton of Hamptone.com. PCB Options We now stock two PCB variants. The "L" shaped board is the one we've been selling for years; it fits the Alctron chassis, where the power transformer is mounted to the lower part of the chassis, and the PCB fits around the transformer. New for 2023 is a rectangular PCB, which fits Shanghai power supplies (e.g. Avantone) where the power transformer is mounted on the PCB. (Both PCBs could be used with either power supply, with minor adaptations. Using the "L" PCB in a Shanghai PSU requires that two mounting holes (for the transformer) be drilled in the chassis.