volt-nuts@lists.febo.com

Discussion of precise voltage measurement

View all threads

3458a RAM batteries - longer life if unit is continually powered?

MS
Mark Sims
Thu, Mar 27, 2014 5:28 PM

The 3458A does have a vacuum fluorescent display and they do go bad over time.  I've seen lots of them with bad displays.  Replacements are expensive... they are a custom HP part only available from HP.
----------------------------No vacuum fluorescent disply to worry about

The 3458A does have a vacuum fluorescent display and they do go bad over time. I've seen lots of them with bad displays. Replacements are expensive... they are a custom HP part only available from HP. ----------------------------No vacuum fluorescent disply to worry about
JP
John Phillips
Thu, Mar 27, 2014 6:27 PM

Is there a command to turn the display Off?

On Thu, Mar 27, 2014 at 10:28 AM, Mark Sims holrum@hotmail.com wrote:

The 3458A does have a vacuum fluorescent display and they do go bad over
time.  I've seen lots of them with bad displays.  Replacements are
expensive... they are a custom HP part only available from HP.
----------------------------No vacuum fluorescent disply to worry about


volt-nuts mailing list -- volt-nuts@febo.com
To unsubscribe, go to
https://www.febo.com/cgi-bin/mailman/listinfo/volt-nuts
and follow the instructions there.

--
John Phillips

Is there a command to turn the display Off? On Thu, Mar 27, 2014 at 10:28 AM, Mark Sims <holrum@hotmail.com> wrote: > The 3458A does have a vacuum fluorescent display and they do go bad over > time. I've seen lots of them with bad displays. Replacements are > expensive... they are a custom HP part only available from HP. > ----------------------------No vacuum fluorescent disply to worry about > _______________________________________________ > volt-nuts mailing list -- volt-nuts@febo.com > To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/volt-nuts > and follow the instructions there. > -- John Phillips
PK
Poul-Henning Kamp
Thu, Mar 27, 2014 6:29 PM

In message BLU170-W2245A847B241ED69892E1ECE670@phx.gbl, Mark Sims writes:

The 3458A does have a vacuum fluorescent display and they do go
bad over time.  I've seen lots of them with bad displays.  Replacements
are expensive... they are a custom HP part only available from HP.

The hardware interface is pretty simple though, so it wouldn't be hard
to create a replacement.

--
Poul-Henning Kamp      | UNIX since Zilog Zeus 3.20
phk@FreeBSD.ORG        | TCP/IP since RFC 956
FreeBSD committer      | BSD since 4.3-tahoe
Never attribute to malice what can adequately be explained by incompetence.

In message <BLU170-W2245A847B241ED69892E1ECE670@phx.gbl>, Mark Sims writes: >The 3458A does have a vacuum fluorescent display and they do go >bad over time. I've seen lots of them with bad displays. Replacements >are expensive... they are a custom HP part only available from HP. The hardware interface is pretty simple though, so it wouldn't be hard to create a replacement. -- Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 phk@FreeBSD.ORG | TCP/IP since RFC 956 FreeBSD committer | BSD since 4.3-tahoe Never attribute to malice what can adequately be explained by incompetence.