[volt-nuts] FET HP3456A
orin.eman at gmail.com
Tue Apr 1 22:52:51 EDT 2014
Why not get one from Tucker?
Sphere have them as well:
On Tue, Apr 1, 2014 at 7:13 PM, Tony Greene <tonygreen924 at inbox.com> wrote:
> I have been troubleshooting a HP3456A voltmeter.
> Its giving a stange fault, but I beleive I have nailed it down. The unit
> is reading +10.00000 volts input at +9.99661 volts. If you reverse the
> input, it reads correct at -10.00000 volts. All other ranges read correct
> on either polarity.
> What I need is a source for the FET A20 Q109 or a suitable substitute.
> Its HP part number 1855-0298, it was made originally by USA mfg 02883 -
> Siliconix, Inc, Santa Clara, CA. It crosses to NSN 5961-01-135-1324. And
> Vishay has bought them and the part number is now obselete.
> FREE 3D EARTH SCREENSAVER - Watch the Earth right on your desktop!
> Check it out at http://www.inbox.com/earth
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