Tube mic power supply

This item is sold out for the forseeable future. If you want a higher-quality power supply, see the VPS. This is a replacement power supply for the Apex 460 and other popular inexpensive tube microphones. It is new and unbranded. The front panel contains a 9-position polar pattern switch, XLR3 output (male), and XLR7 input (female). We test all 3 voltages (B+, pattern, heater) on every unit to ensure proper operation. We provide a 30-day guarantee against failure. Specifications Input voltage: 115VAC or 230VAC (selectable via switch on rear panel) Output voltages: XLR1 (plate voltage, tube pin 6): 125-140VDC XLR2 (heater voltage, tube pins 4-5): 6-6.8 VDC XLR3 (rear diaphragm polarization): 52-70 VDC in Cardioid Complete pinout: XLR1: plate voltage to mic XLR2: heater voltage to mic XLR3: pattern voltage to mic XLR4: ground XLR5-6: balanced audio from mic XLR7: ground This PSU includes an IEC power cord with US standard NEMA 5-15P connector, if shipped to a domestic US or Canadian