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

[Greg Burnett]

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

.