The PS-8 circuit board was designed for those who need a high-voltage, bipolar power supply with two sets of regulated heater power supplies. On this seven by four inch, extra thick (0.094), 2oz-copper traces, USA-made PCB resides both a bipolar high-voltage power supply and two low-voltage regulators, with each finding its own raw power supply, including the rectifiers and power-supply reservoir capacitors. In other words, except for the power transformers, the PS-8 PCB holds all that is needed to make a fine tube-circuit power supply suitable for electrostatic headphone amplifiers. $110.00 |