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The W7ZOI crystal filter design and crystal measurement methods are described
in detail in _Experimental Methods in RF Design_, published by the ARRL and available from numerous sources. It should be every serious experimenter's library. Roy Lewallen, W7EL Tom Bruhns wrote: If you have access to old QSTs, you should be able to find articles about measuring crystal parameters. Look especially for things by Wes Hayward, W7ZOI. There's a fairly simple crystal-tester you can build to measure enough parameters to extract equivalent L, Cs, Cp and R, I believe. I 'spose someone will pop in with a more specific reference for you. Cheers, Tom "Virgil Smith" wrote in message news:3iNHb.504277$275.1417484@attbi_s53... I have a bunch of oddball crystals that I want to test. I know I can just build up a generic oscillator to find the resonant frequency, but out of curiousity I would like to know the quality of the things, too. Anyone know of any neat ideas for measuring the Q of a crystal? I would welcome any and all suggestions, -vs- |
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