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Here's Ron's reply to "our" request. You'll note that it includes JD's #3_______________________________________________
If I were still at UCSC, I'd try to make a dropping magnet apparatus for
our second sound Dewar. "We" for a time did a demo. using a Pb watch
glass. I tried Sn, which worked, but, of course, not for long. Hi Q
water supplies use pure Sn pipe.
bc, who wonders about the price of hi. temp. super c. pipes. Are they
type I super C.?
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