The PS-19 is a regulated bipolar power supply that puts out low-voltage bipolar voltages between +/-5Vdc to +/-24Vdc. It uses an LM317 for the positive output and an LM337 for the negative output. The PS-19 PCB is only 3.7" by 3.2" and, like all GlassWare PCBs, is extra thick (0.094 in), US-made, with heavy 2-ounce copper traces. The rectifiers used are ultra-fast MUR410G types, each of which are shunted by a 0.1µF ceramic capacitor to reduce RFI creation. The power supply requires an external power transformer.
The H-PS-1 is a simple low-voltage regulator. You need only hook up a power transformer and the H-PS-1 will rectify and regulate the AC voltage into smooth, stable DC. This little regulator can put out up to 2.5A and it can deliver an output voltage that ranges from +5V to +25V. This power supply is perfect for the 24V Aikido line/headphone amplifier, tube heaters, and Squeezebox PS upgrades.
New LV-Regulator The LV-Regulator is an audio-grade low-voltage regulator that uses a simple RC filter (1 ohm & 10kµF) as a pre-filter before the LDO regulator and holds bypass capacitors for all the electrolytic capacitors and a 4.7µF/400V polypropylene shunting capacitor at the output. Perfect replacing the cheap switcher wallwart that came with your external DAC or Squeezebox Duet or Touch.
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 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, which is able to deliver 1.5A @12Vdc into an external load.
The Tr-PS-3 is a regulated bipolar power supply that puts out +/-12Vdc @ 750mA. It uses an LM317 for the positive output and an LM337 for the negative output. The Tr-PS-3 PCB is only 6" by 3.2 " and, like all GlassWare PCBs, is extra thick (0.094 in), US-made, with heavy 2-ounce copper traces. The rectifiers used are ultra-fast MUR410G types, each of which are shunted by a 0.1µF ceramic capacitor to reduce RFI creation. The power supply can be used with either 115Vac-120Vac wall voltage or with with 230Vac-240Vac wall voltages.
The circuit is a simple voltage doubler that converts the 5Vac into 12Vdc for the power amplifier's frontend circuitry. It is not that big a deal, but once you have point-to-point wired a few of them, you begin to long for a tight little PCB.
New bipolar low-voltage power supply kit for solid-state projects. Uses two positive, 3A, LDO voltage regulators with separate rectifier bridges to create a bipolar power supply. Uses high-quality Nichicon Audio and Wima MKP10 polypropylene capacitors, also includes two large heatsinks.
The PS-SS, a new GlassWare power supply kit, is intended for use in solid-state power amplifiers. (Of course, it could be used in a tube hybrid power amplifier.) Its design had two goals: a squat profile, so it could be used a 2U enclosure, and the inclusion of RC filters. One (of many reasons) why tube amplifiers so often sound better than their solid-state brothers is that the tube amplifiers hold RC filters or LC filters. These low-pass filters do not completely eliminate ripple, but they do scrub away harsh higher harmonics.