I thought this was interesting - Sparkos (known for their discrete opamps and regulators) now is selling dual and quad output power supply kits. I have not tried to do a bom to see if their prices are competitive, but they seem ball-park reasonable.
Audio Power Supply For Audio - Sparkos Labs, Inc.
What seems a bit unconventional is that they place 1 Ohm resistors in series with the transformer leads "to reduce inrush". Seems like they do not subscribe to the use of varistors. Of course, you could just use varistors (typically on the primaries) and get rid of the resistors if you wanted.
Audio Power Supply For Audio - Sparkos Labs, Inc.
What seems a bit unconventional is that they place 1 Ohm resistors in series with the transformer leads "to reduce inrush". Seems like they do not subscribe to the use of varistors. Of course, you could just use varistors (typically on the primaries) and get rid of the resistors if you wanted.
Last edited:
Seem to have changed their values ,the circuit diagram for the power supply shows = 0.22 ohms resistors on their Sparkos regulator info website .
After reading their blog somebody at the "Top " in the USA will be very happy with their approach---hint-Made in the USA .
After reading their blog somebody at the "Top " in the USA will be very happy with their approach---hint-Made in the USA .