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Simpits International Forum RDF feed[simpits-tech] References
http://www.simpits.org/forum/index.php?t=rview&goto=2786&th=538#msg_2786
First is an FAA publication that includes a bunch of handy, practical info on aircraft instrumentation: http://tinyurl.com/85yyhbv
Second deals with synchros: http://tinyurl.com/84stukj
(Note: this is a link to the "Quickview" option in Google, but you can download the complete PDF from there as well.)