[time-nuts] Subject: Re: Meter face for HP-4805A
gsteinba52 at aol.com
gsteinba52 at aol.com
Tue Oct 12 15:11:09 UTC 2010
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
Message: 2 Date: Tue, 12 Oct 2010 09:29:19 -0400
From: paul swed <paulswedb at gmail.com>
Subject: Re: [time-nuts] Meter face for HP-4805A
To: shalimr9 at gmail.com, Discussion of precise time and frequency measurement <time-nuts at febo.com>
Didier, Its subjective then. If its bad enough you take the risk because you do know the process
will degrade the scale. Essentially when its time to do it you will. So the good news is this.
With todays tools you can very accurately reproduce the meter scale. I scan them at 1200 dpi as
I just did for the dymec. I prefer bitmap over jpeg for storing them. Additionally with the
various paint programs that seem to come on every pc today you can always fix issues pretty easily.
Then print to your favorite material which most likely is a white picture material. (I like it
because its a bit thicker and more stable) Though good quality paper is excellent also.
Hmmm maybe we should send our meter scans to K4BB repository. Heck he has rom images.
Regards Paul.
More information about the Time-nuts_lists.febo.com
mailing list