> According to the schematic on the side, it consists of 2 x 2.5 > mH indutors, one in series with each leg, a 2200 pF cap shunting the > line input and 0.1uF capacitors from each leg to ground on the load > side.
It's generally two inductors wound on a single core for common-mode choking. The result is that total common-mode inductance is 2*L while differential-mode inductance cancels and equals zero. The 2200pF caps are differential-mode shunts to ground. Some of these modules can be purchased with complex combinations of both common-mode and differential-mode inductance and capacitance sections. I use them for almost all home-brewed projects that require an AC supply. Paul, W9AC _______________________________________________ UR RST IS ... ... ..9 QSB QSB - hw? BK
