[GreenKeys] XR2211 demodulator circuit boards?

[eric]

Just thought I'd pack up all the stuff I have for what people called the
"volpe demod board" in case anyone wants to re-use some of my work,
since I've told a few people I'd send it over. 

Here's a zip file with the Eagle (v7.7) design files, the Gerbers
generated from them (layer descriptions in "layers.txt") and some parts
lists with DigiKey part numbers. Note you'll need to substitute a more
up to date solid state relay part, see my last email. 

eric
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