crc pi filter

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pi filter

see attached

I am building a +/- 15 volt 300va supply for a ALEPH X
 

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Hi,
that CRCR filter shows 47pF which is an RF filter.

The caps are not in parallel, they are two cascaded filters.

If you replace the caps with 500uF the frequency of the filter will move down 7decades from 68MHz to 6Hz.

This will filter the mains hum significantly. Adding the second RC filter will further filter the mains hum.

500uF will support short term peak output currents of about 250mA but the output voltage will sag significantly due to the series 50r +100r even with only a 50mA load
 
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