> Sorry I identified "Corcom" incorrectly. > > I checked a sample and the actual filters that I used were Delta > Electronics 05DRCG5. > http://c1170156.r56.cf3.rackcdn.com/UK_DEL_05DRDG3_DS.pdf That's better. That is a filter that suppresses CM and DM signals via capacitors, but it still looks like they common core all the chokes. :(