[volt-nuts] Completion of LED Mod's for the Fluke 845AB & 845AR Null Meter.

[Todd Micallef]

I have uploaded the mod file to the ko4bb ftp server. I could not find the
AR or AB manuals so I also added them. Right now they are sitting in the
Recent Uploads directory.


Todd

On Sun, Nov 23, 2014 at 10:31 PM, Dallas Smith <dosmith at outlook.com> wrote:

> Thank you, that will be fine. I'm getting swamped with request. could you
> start a volt-nuts thead to its location?
>
> > Date: Sun, 23 Nov 2014 22:20:17 -0500
> > From: tmicallef at gmail.com
> > To: volt-nuts at febo.com
> > Subject: Re: [volt-nuts] Completion of LED Mod's for the Fluke 845AB &
> 845AR Null Meter.
> >
> > Dallas,
> >
> > Thanks for the information.
> >
> > Would you be opposed to uploading it to the KO4BB website? I think Didier
> > could place it in a Fluke 845AB/AR folder. I could upload it with a copy
> of
> > the manuals and send him an email.
> >
> > Todd
> >
> > On Sun, Nov 23, 2014 at 10:02 PM, Dallas Smith <dosmith at outlook.com>
> wrote:
> >
> > > How do I make my RTF attachment available to Volt-nuts? I do not trust
> > > cloud servers and the like.
> > >
> > > Dallas
> > >
> > >
> > > On 11/23/2014 1:29 PM, Dallas Smith wrote:
> > >
> > >> To All,
> > >>
> > >> The final modification of the Fluke null meters with LED's is
> completed.
> > >> The results is impressive, keeping the basic original circuit of the
> > >> meters. My rev 8 AR version has a double diode in the output stage
> which
> > >> seems to remove the zeroing hysteresis around a zero reading was also
> made
> > >> to my 845AB. Implementing two 1.2v reference diodes in the zeroing
> circuit
> > >> greatly improved the zero drift for the zeroing control. There were
> also
> > >> changes to the feedback response by changing two capacitors. If
> anyone is
> > >> interested, please E-mail me at my personal address.
> > >>
> > >> dosmith at outlook.com
> > >>
> > >> Dallas
> > >> _______________________________________________
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> > >>
> > >>
> > >>
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