Perditty, I meant no slur. Sorry.
Geoff, There has been a LOT of published science on the behavior of crystals in electronic applications. It's actually quite an interesting history dating back to the 1920s. By WWII, quartz crystals were already being used in the defense industry in electronics, and since the method for growing such crystals in a lab had not yet been developed, natural quartz was highly prized and sought after. There is no occult force in commercial audio that could or would suppress research into this area or any other area of science. You greatly exaggerate the power of the industry, and/or you don't quite understand how basic research comes to be done. I have to think that if free (meaning "not in-circuit") quartz crystals (or any of many other kinds of crystals now available) could absorb RFI, there would be a published paper describing this phenomenon. On the other hand, I agree that my failure to find the papers (so far) is no proof that such work has not been done. I will keep looking. There are EEs lurking here. Perhaps one of them knows.
Geoff, There has been a LOT of published science on the behavior of crystals in electronic applications. It's actually quite an interesting history dating back to the 1920s. By WWII, quartz crystals were already being used in the defense industry in electronics, and since the method for growing such crystals in a lab had not yet been developed, natural quartz was highly prized and sought after. There is no occult force in commercial audio that could or would suppress research into this area or any other area of science. You greatly exaggerate the power of the industry, and/or you don't quite understand how basic research comes to be done. I have to think that if free (meaning "not in-circuit") quartz crystals (or any of many other kinds of crystals now available) could absorb RFI, there would be a published paper describing this phenomenon. On the other hand, I agree that my failure to find the papers (so far) is no proof that such work has not been done. I will keep looking. There are EEs lurking here. Perhaps one of them knows.