Is there any other threads discussing the schematic above?Most recently, I'm putting rectifier diodes on heatsinks and mounting those heatsinks VERY CLOSE to the electrolytic filter capacitors. Dangerously close, so close they can bake the reliability out of the caps if not very very carefully calculated.
Because of that, I've chosen to use 10-ampere Schottky diodes for their low forward voltage drop, thus low (Vfwd * Idiode) power dissipation, and because of low power dissipation: low heat. Thermal camera image below.
Since a C+RC snubber across the transformer secondary can eliminate all ringing, I haven't felt the need to specially select a diode whose recovery characteristic is softer than a Schottky's. The C+RC is cheap, reliable, and high performance ... while the Schottky diode's Vfwd is unbeatably low.
Of course all of the above is my opinion and if you happen to hold a different opinion: good on YOU.
datasheet of Schottky diode
technical article about diodes and transformer ringing
PLease help to locate.
Three minutes ago I ran a Search on the diyAudio Forums, looking for threads with PSU For Chipamps in the thread title. The Search found this thread from 5 years ago, and the thread does discuss the schematic shown here in post #62 above. There is also a mention of an old Group Buy which took place in 2019 and is now dead. If you want some of those boards today, 5 years after the group buy completed and died, you will need to create your own PCB layout and have it fabricated for you.
PSU for Chipamps Forum thread HERE (link). Good luck!
PSU for Chipamps Forum thread HERE (link). Good luck!