[time-nuts] hp5061a/b no I beam current

paul swed paulswedb at gmail.com
Wed Oct 21 12:02:48 UTC 2009


Anyone ever see an ionizer short?
I am reading .1 ohm, though like a light bulb maybe it goes up when hot.
That seems low though at 1 volt and 1 amp maybe not.
Your comment of 1-2 ohms is not what I am seeing. Though I do see 1 v across
it in operation.

On Tue, Oct 20, 2009 at 5:21 AM, John Miles <jmiles at pop.net> wrote:

>
>
> > -----Original Message-----
> > From: time-nuts-bounces at febo.com [mailto:time-nuts-bounces at febo.com]On
> > Behalf Of paul swed
> > Sent: Monday, October 19, 2009 6:32 PM
> > To: Discussion of precise time and frequency measurement
> > Subject: Re: [time-nuts] hp5061a/b no I beam current
> >
> >
> > I think I am on the trail of the issue.
> > Several things I now understand.
> > Somethings up with the -2500 supply its not the photo multiplier.
> > The regulators feeding perhaps4-6V to it and thats about -1000 not 2000
> > To make 2083 volts needs 15-16.
> > The voltage at the test point shows nothing but ringing so
> > impossible to set
> > the em voltage by that test point and perhaps what I have been seeing
> > thinking it was correct.
>
> Sounds like an open capacitor somewhere, either inside the EM supply module
> or external to it?  The voltage-setting reference point should be DC.
>
> -- john, KE5FX
>
>
>
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