On 23 September 2017 at 18:03, Tom Knox <act...@hotmail.com> wrote: > If you want I will send you a few to play with for a few months. >
Thank you very much. I'd like to have a play. I sent you a private email. Someone suggested using the DCV:DCV ratio mode to look at two references, but I don't see this facility on the 3457A. I think the only way to compare two of them would be to put them in series, but back-to-back to subtract the voltages, and look at the difference on the 3457A. > > Thomas Knox > It's odd there's someone selling LTZ1000A chips on eBay at $50 each. http://www.ebay.com/itm/1x-LTZ1000ACH-Ultra-Precision-Reference-LTZ1000A-/111325506311 It looks like they have been removed from PCBs with a sledge hammer - they are heavily scratched and/or dented. The sellers seems to have sold quite a few, yet the chips are only marginally more expensive if bought new from the manufacturer. Dave _______________________________________________ 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.
