[time-nuts] Subject: Re: Meter face for HP-4805A

[J. Forster]

Thanks, except I remember he went by Barney or Barnie.

-John

=============


> P.S. There's a better description (in an article by Bernie Oliver) at:
> http://www.hpl.hp.com/hpjournal/pdfs/IssuePDFs/1961-03.pdf
>
> Greg
>
> ----- Original Message -----
> From: "Greg Burnett" <gbusg at comcast.net>
> To: "Discussion of precise time and frequency measurement"
> <time-nuts at febo.com>
> Sent: Tuesday, October 12, 2010 2:07 PM
> Subject: Re: [time-nuts] Subject: Re: Meter face for HP-4805A
>
>
> Yeah, I remember from the "good old days", we individually calibrated
> taut-band meter movements with a HP designed servo-meter calibrator. At
> least that's the way we did it for some models. I don't guarantee we did
> it
> that way for all models, though.
>
> The way I remember it, this process (regardless of which division's
> instrument was involved) was performed at HP Loveland.
>
> Disclaimer: My memory might be slightly skewed after all these decades.
>
> For description of the taut-band meter movement calibration, see the HP
> Journal article at:
> http://www.hpl.hp.com/hpjournal/pdfs/IssuePDFs/1966-01.pdf
>
> I do agree with the other post, though, that *any* saved/scanned scale is
> way better than no (or a damaged) scale. In many cases probably a randomly
> scanned scale would match a given meter movement good enough for most our
> purposes.
>
> Greg
>
> ----- Original Message -----
> From: <gsteinba52 at aol.com>
> To: <time-nuts at febo.com>
> Sent: Tuesday, October 12, 2010 9:11 AM
> Subject: [time-nuts] Subject: Re: Meter face for HP-4805A
>
>
>          Just a quick note...
>
> HP was quite proud that scales for their precision meters were
> individually
> produced
> for each movement on a custom made servo controlled photographic
> calibrator.
>
> An archive might be nice but won't provide the meter accuracy of the
> originals produced
> for each unit.
>
> Jerry
>
> .
>
>
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