Received my version of an external LPF board from OSHPark. To second Jerry's comments, OSHPark has a very nice front end process.
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This board is 1.5in by 3in sized for T68 cores and 1206 caps to provide flexibility for use in future projects. Footprints are provided for both BNC connectors and header pins for input and output.
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Get a copy of "Make Your Own PCBs with Eagle" by Simon Monk and you can make your own boards for the investment of a small learning curve.