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YWBL 25A filter board:




I got surprisingly good results from this YWBL 25A bare filter board. It features a good layout of capacitors
and resistors, as well as a two-stage common-mode choke. The transformers use copper bands for their windings,
to increase current capacity.

These boards are also available in a 6 amp version. Considering the very small price difference for 4x the
current capacity, I think it makes sense for most people to just go with the 25A model.



amazon review.txt

schematic at LushProjects


YWBL filter board ($16 at Amazon)


YWBL filter project (in filter projects)


schematic:


YWBL two-stage common-mode filter board:



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last updated 05/20/2025 at 19:19:02 by make_www_index.command version 2025.05.20.B