[volt-nuts] 3458A resistance calibration

[Rob Klein]

Poul-Henning Kamp schreef op 22-5-2015 om 10:22:
> --------
> In message <555E5D13.4060006 at freenet.de>, Frank Stellmach writes:
>
>> The VHP101 has [...]
> I'd be surprised if HP didn't have a pretty hostile incoming inspection
> procedure for this component, so I'd expect the specs of the onces that
> made it into HP3458 instruments to be somewhat tighter.
>
> I've always wondered what a company like HP did with rejects against
> in-house-specs ?   Did they have multiple grades so that the best
> ended up in 3458, the next best in 3457 and the ones living up to
> manufactureres spec in 3456 ?
>
Most likely, they have Vishay do the selection for them.

As for rejects, there are no VHP101's in either the 3456 or the 3457 :)