Power supplies, particularly high-voltage power supplies, are often the big stumbling block to a successful completion of a tube-based audio project. Getting a PCB and all the capacitors, diodes, and resistors needed to populate the PCB is only half the problem. The other half is getting the power transformer. Well, with the new Tr-PS-2 power supply both problems are solved at once, as the Tr-PS-2 holds its own power transformer. The Tr-PS-2's PCB is only 5 " by 2.8 " and, like all GlassWare PCBs, is extra thick (0.094 in), US-made, with heavy 2 oz-copper traces.
Brother to the Tr-PS-2, the Tr-PS-1 is a low-voltage, regulated 12Vdc (or 9Vdc or 12.6Vdc) power supply, perfect for powering vacuum tube heaters or replacing the wallwart power supply that powers DACs and other small audio gear. The Tr-PS-1 holds its own 36VA power transformer. The Tr-PS-1 PCB is only 5 " by 2.8 " and, like all GlassWare PCBs, is extra thick (0.094 in), US-made, with heavy 2-ounce copper traces. The PCB holds a 3A, low-drop-out (LDO), adjustable voltage regulator, the LD1085, which idles at 10mA with no external load and is able to deliver 1.5A @12Vdc into an external load.
The PS-10 circuit board makes life quite a bit easier for the tube fancier. On this small 4 by 5 inch, extra thick (0.094), 2oz-copper traces, USA-made PCB resides both a high-voltage power supply and a low-voltage regulator, with each finding its own raw power supply. The transformer is an Edcor XPWR083A-120/240, a PCB-mount type that works with 120Vac or 240Vac wall voltages. An assembled PS-10 makes a fine tube-circuit power supply, as long as the power demands are not too great, as the PS-10 puts out 280Vdc @ 20mA of HV B+ voltage and 800mA @ 6.3Vdc of heater voltage.