Hello Sika and Alex, I'm looking for a hum free bipolar/dual power supply about +- 28V 2A. Could you comment on ripple/hum of your Raw DC Board? Thank you very much. - Jos
Hi, first sorry for late answer
Regarding hum free request, look, CRC filter is CRC filter, you will get same filtering regardless of PCB used, only important is CRC values and quality of components used.
I believe there are calculator on forum for calculating PS performance with defined values.
Streghth of this board is (IMO):
- Minimized EM interference, achived with routing ala twisted pair.
- Layout is very flexible, you can use parts (rectifier diodes, capacitors) of different types, look at the PCB for details
- Price is very good IMO (25$ for 10 pieces (cca) shipping included)
- Manufacturing is realy well.
![cheers :cheers: :cheers:](https://files.diyaudio.com/forums/images/smilies/cheers.gif)
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