Crc grounding question

[SonocusEric]

For my preamp im feeding an lm317/337 regulator from a crc supply and using a star ground/ground fill for the pcb. Ive made the layout such way that i have the the choice of moving the return diodes to either the 1st c or the 2nd c of the crc supply. Its my understanding that the diodes should be where theres most amount of pulse. So should that be the 1st smoothing cap in my case or the 2nd one after the resistor? And where should i keep the return diodes near by?

 

[rayma]

If by return diodes, you mean the two FWB rectifier diodes that go to ground, they should go directly
to the first capacitor's negative terminal. Take the diagram more or less literally for how to route the connections.