http://www.ebay.com/itm/Agilent-Keysight-HP-3458A-Std-Ref-Board-NIST-certified-/310249132548?pt=LH_DefaultDomain_0&hash=item483c4a1204
Try this one... It has a 30 day return and you get a cal voltage with it. On Fri, Jan 30, 2015 at 9:21 PM, Joel Setton <[email protected]> wrote: > I'll be happy to design a PCB, and have bare PCB prototypes made. > Sourcing parts and purchasing them will be another, larger project! > > Joel Setton > > > On 30/01/2015 14:24, Dr. David Kirkby (Kirkby Microwave Ltd) wrote: > >> On 30 January 2015 at 12:25, Will <[email protected]> wrote: >> >>> The boards are factory rejects. >>> >> I doubt all boards on eBay are in this category. Some are probably >> quite genuine, some may be rejects, and it would never surprise me if >> some are counterfeit. The problem is, I have no idea what ones are >> what. >> >> I don't know what the problems sourcing the parts for making a >> reference would be, but if a number of people wanted to make one from >> parts, perhaps someone could produce a PCB and people contribute >> towards the cost of it. Maybe leave people to get their own reference >> chip, as there are different grades of that. But things like the >> precision resistors may be easier to buy in a quantity of 10 rather >> than 1. >> >> I would certainly not mind buying one if a PCB was available. Even if >> it works out costing a bit more than a 3458A reference from eBay, I'd >> feel a bit happier. >> >> Dave >> _______________________________________________ >> 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. >> >> > _______________________________________________ > 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. > -- *John Phillips* _______________________________________________ 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.
