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