[volt-nuts] 3458A firmware update

J. L. Trantham jltran at att.net
Thu Dec 1 03:47:26 UTC 2011

The Agilent site lists the single EPROM REV 9 chip (P/N 03458-88897) for
$18.21.  The multi-chip (4? or 6?) EPROM REV 9 set (P/N 03458-80023) is
listed at $139.

Looking at Service Note 3458A-12C, it is not entirely clear to me what
'issues' were resolved by REV 9.  Several issues are discussed that were
resolved by earlier versions before 8 that were resolved by 8 but I don't
see what the benefit would be of 9 over 8.


-----Original Message-----
From: volt-nuts-bounces at febo.com [mailto:volt-nuts-bounces at febo.com] On
Behalf Of Steve Krull
Sent: Wednesday, November 30, 2011 8:25 PM
To: Discussion of precise voltage measurement
Subject: [volt-nuts] 3458A firmware update

Has anyone archived a copy of the rev 9,2 firmware anywhere? I replaced 
the NVRAM a few months ago and just added Option 001 (about $6 for the 
four chips) and I'd like to try to upgrade the firmware from the current 



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