The question about the Josephson Junction Array got me thinking. I wonder if there are any sort of technologies that can produce a voltage with much better stability than the LTZ1000, but without the cost of a Josephson Junction Array. A sort of half-way house.
BTW, I see some rather battered up LTZ1000A's on eBay, http://www.ebay.com/itm/1x-LTZ1000ACH-Ultra-Precision-Reference-LTZ1000A-/111325506311 that have dents in them. They are more expensive than buying the chip new from the Linear Technology website. http://www.linear.com/purchase/LTZ1000 Yet people seem to buy them. Now I know the stability of those improve with age, but when they have dents in them, its clear they have not been exactly cared for. Maybe I will buy some new LTZ1000As and stick them on eBay for $100 and see how many I sell !! It seems the real cost of an LTZ1000A standard is not the chip, but the resistors you need. _______________________________________________ volt-nuts mailing list -- volt-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/volt-nuts and follow the instructions there.
