@Vince: Thank you for the link! Very informative! There is also a nice video showing some of the lab techniques, and some cautions working with cryogenic liquids.
I would also like to explore miniature cryocoolers-- as these might be able to support a small lower power array (1V) if it doesn't dissipate too much power... There is already some progress in this area with a QHR made from graphene (at the NPL in the UK). So, maybe the same cryocooler could be used also for the low-cost JJA ? Having a 10V (fixed output) JJA and a 12K9 QHR would be the basis to calibrate all other electrical standards in a lab. It would be nice to have these sitting in their cryocoolers cranking out volts and ohms practically indefinitely (or as long as you want)-- and if one has even a rubidium atomic clock, then no external signals or standards of any kind would be needed. Well, that and a triple-point of water cell (which I have) for temperature calibrations. -Ken _______________________________________________ volt-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/volt-nuts and follow the instructions there.
