[volt-nuts] 3458A reference boards on ebay

[Dr. David Kirkby (Kirkby Microwave Ltd)]

On 30 January 2015 at 12:25, Will <willvolts at gmail.com> 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