Tube mic power supply
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.
We test the high-voltage line on every unit to ensure proper operation. We provide a 30-day guarantee against failure.
Here are the output voltages for this PSU, as measured with a stock Apex 460 connected:
- XLR1 (plate voltage, tube pin 6): 135VDC
- XLR2 (heater voltage, tube pins 4-5): 6.2VDC
- XLR3 (rear diaphragm polarization): 55-60VDC in Cardioid
Audio input connector: XLR7 (female)
Audio output connector: XLR3 (male)
A recessed switch on the back panel allows the supply to be switched from 115VAC to 230VAC.
This PSU includes a US power cord.
We guarantee this PSU to be compatible with the Alctron T11-A and its clones, including the Apex 460, Apex 460B, Carvin CTM-100. It is also compatible with our own 12-251, V-47, and V12 microphones.
It is known to not be compatible with Rode tube microphones, which have a different pinout and different voltage requirements.
We offer two colors for the power supply cover: matte black, or satin silver titanium. The latter is a durable powdercoat; these silver covers have been heat-treated for longevity. The silver units are sold at our cost of $10 additional per unit. The supply of these parts is limited.