re HP 411A

Jim M cmos at MAIL.MICROSERVE.NET
Thu Apr 16 15:30:17 EDT 1998


> Date:          Thu, 16 Apr 1998 08:20:50 -0700
> Reply-to:      Chris Ludtke <lbarber at JETSTREAM.NET>
> From:          Chris Ludtke <lbarber at JETSTREAM.NET>
> Subject:       re HP 411A
> To:            BOATANCHORS at LISTSERV.TEMPE.GOV

The 411A is an AC millivolt meter with scales from 10mv
to 10v RMS, and 500khz to 1ghz, to my knowlage.
The probe on mine has  11025a on the pice before the bnc
connector, but I do not have anything either.
It is different from the porbes I have seen on the 410, the ones
I have seen on the 410 do not atach with a bnc connector.
Dose any one know anything more about this 11025a probe ?

Jim,
>
>    I am not that familar with the 411 A but, may I suggest that it may be a
> millivoltmeter or level meter intended for measurement o f MW freqs. The bnc
> connector should have a bolometer or mw detector connected to for
> measurement. Just an opinion. The 410B has a diode in the probe for
> detection. The probe is permenently attached however. The diodes are often
> blown by the failure of the ballast tube . 73 es tnx Lorne VE7BOX.
>

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Cmos at microserve.net
http://WWW.PCT.EDU/homepage/student/marjam55/
http://cmos1.home.ml.org

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