[sdiy] RFI filters on bipolar supply

[Dave Magnuson]

Hi List,

I'm building a second power supply for my modular, since I've outgrown my
current one.  

I have an IEC connector that I scavanged from an old laser disk player...
and it has built in RFI noise suppression on both the hot and neutral
lines.  It's comprised of 3 caps and 2 inductors.  Starting at the input of
the connector, one cap connects between hot and neutral, then there's an
inductor in series on each line, followed by a cap to ground on each line.

Would it be a bad idea to use this?  I figure any added RFI/EMI suppression
would be good, but I don't know if there's going to be any problems
connecting this to a typical 7815/7915 based bipolar supply.  I figured
it's free, so I might as well use it if it'll work. 

There's a similar connector/filter in Mouser catalog #606: bottom left
corner of page 120 (part number 562-857-06/27).

Thanks in advance

Dave Magnuson

Resonant Frequency:
resfreq at hoohahrecords.com
http://www.hoohahrecords.com/resfreq/index.html