[time-nuts] Meter face for HP-4805A

shalimr9 at gmail.com shalimr9 at gmail.com
Tue Oct 12 21:19:33 EDT 2010


Ok, you beat me to it, thanks!

Didier

Sent from my Verizon Wireless BlackBerry

-----Original Message-----
From: WB6BNQ <wb6bnq at cox.net>
Sender: time-nuts-bounces at febo.com
Date: Tue, 12 Oct 2010 13:11:46 
To: Discussion of precise time and frequency measurement<time-nuts at febo.com>
Reply-To: Discussion of precise time and frequency measurement
	<time-nuts at febo.com>
Subject: Re: [time-nuts] Meter face for HP-4805A

OK, found it

http://tonnesoftware.com/meter2.html

Bill....WB6BNQ


WB6BNQ wrote:

> It seems to me,
>
> There was a program or two that someone (or more) had written to do meter scaling.  It was designed to print properly on an hp laserjet as I recall.
>
> At the moment am unable to find it in my list of links or programs on my computer.  But Google should give some answers.
>
> Bill....WB6BNQ
>
> shalimr9 at gmail.com wrote:
>
> > I have an HP-4508A Vector Voltmeter that has a bad case of meter paint peeling. I took pictures to have in case it gets worse (which it probably will), but I am concerned that any attempt at taking the meters apart (as I would need to actually scan the meter faces directly on the scanner to have a scale image without to much distortion) would result in most of what's left of the paint to fall off.
> >
> > This probably should go on the HP_Agilent news group, but I was wondering if someone in this group had experience with rebuilding those or similar meters.
> >
> > Didierr
> >
> > Sent from my Verizon Wireless BlackBerry
> >
> > -----Original Message-----
> > From: paul swed <paulswedb at gmail.com>
> > Sender: time-nuts-bounces at febo.com
> > Date: Mon, 11 Oct 2010 20:22:32
> > To: <billj at ieee.org>; Discussion of precise time and frequency measurement<time-nuts at febo.com>
> > Reply-To: Discussion of precise time and frequency measurement
> >         <time-nuts at febo.com>
> > Subject: Re: [time-nuts] Possibly OT - Any interest in a vintage HP/Dymec
> >  DY-5842 VLF receiver?
> >
> > Thanks Bill the scale is fine. Its the meter needle that had paint peeling
> > off.
> > Just pulled the meter and removed the loose paint. Also just scanned the
> > meter face so in the crazy possibility of the decals peeling I can just
> > print a new face.
> > Now to locate a hobby store (that may actually be really tough these days.)
> > and find some enamel paint of approx correct color.
> > Kind of a florescent red and really a little dab will do you.
> > Regards
> > Paul.
> >
> > On Mon, Oct 11, 2010 at 11:22 AM, Bill Janssen <billj at ieee.org> wrote:
> >
> > > paul swed wrote:
> > >
> > >> An update. Indeed its working very well now. Easily at -88dbm. Its quite
> > >> interesting in the fact that if you set the Local oscillator exactly at
> > >> 160
> > >> KC which today is easy to do, you actually have mis-adjusted it. It dawned
> > >> on me this morning that since its a freq LO add and then subtract scheme.
> > >> That you actually adjust it for peak signal through the 100KC IF.
> > >> Essentially disregarding slight literal offsets. (This is the same
> > >> approach
> > >> some navy receivers use back in the 70s, and some older ham equipment.)
> > >> The unit cleaned up very well though still have some tape glue to remove
> > >> and
> > >> label gunk from stickers.
> > >> The biggest challenge is gently pulling the meter out and removing the
> > >> peeling needle paint thats jamming the needle. No coffee during that
> > >> exercise.
> > >> Regards
> > >> Paul.
> > >>
> > >>
> > > I have had some success with putting the meter scale back down with water.
> > > It seems on some meters
> > > that the scale was a decal that had a water based glue. I used a tooth pick
> > > to put a drop of water under
> > > the part that was lifted and the used the tooth pick to smooth the scale
> > > back in place.
> > >
> > > Bill K7NOM
> > >
> > >  On Mon, Oct 11, 2010 at 1:09 AM, Paul Davis <ziggy9 at pumpkinbrook.com>
> > >> wrote:
> > >>
> > >>
> > >>
> > >>> In case anyone was wondering, the receiver has found a home with Paul,
> > >>> WB8TSL. He tells me he's got it receiving WWVB already. It will need a
> > >>> little TLC, but it was good to see its basic functionality confirmed.
> > >>>
> > >>> I've posted the scanned copy of the manual on my website at <
> > >>> http://www.pumpkinbrook.com/DY-5842/> for those that are interested.
> > >>>
> > >>> Thanks for the interest, and the replies.
> > >>>
> > >>> Paul - K9MR
> > >>>
> > >>>
> > >>> On Oct 2, 2010, at 2:40 PM, Pete Lancashire wrote:
> > >>>
> > >>>  Ken would be a great person. THe HP Memory project would be another
> > >>>
> > >>>
> > >>>> http://www.hpmemory.org/index.htm
> > >>>>
> > >>>> -pete
> > >>>>
> > >>>> On Fri, Oct 1, 2010 at 3:50 PM, Brian Kirby <
> > >>>> kilodelta4foxmike at gmail.com>
> > >>>> wrote:
> > >>>>
> > >>>>
> > >>>>
> > >>>>> You might consider contacting Dr. Ken Kuhn  --  kennathakuhn at gmail.com
> > >>>>>
> > >>>>> check his HP museum at http://www.kennethkuhn.com/hpmuseum/
> > >>>>>
> > >>>>> Brian Kirby KD4FM
> > >>>>>
> > >>>>>
> > >>>>>
> > >>>>> On 10/1/2010 5:34 PM, ziggy9 wrote:
> > >>>>>
> > >>>>>
> > >>>>>
> > >>>>>> Fellow time-nuts:
> > >>>>>> I've got a circa 1964 DY-5842 VLF receiver. This is (was) operated in
> > >>>>>> conjunction with an external time interval counter to make a frequency
> > >>>>>> comparison. So you would select WWVL for example, and use that as your
> > >>>>>> primary standard for comparison to your local standard. It's got 5
> > >>>>>> crystals
> > >>>>>> in it: 16, 18, 19.8, 20, and 60 kHz (listed as GBR, NBA, NPM, WWVL,
> > >>>>>> WWVB).
> > >>>>>> It works and I have the manual. The thing is, the interest in
> > >>>>>> something
> > >>>>>> like this is bound to be a bit narrow, so I thought I'd mention it
> > >>>>>> here.
> > >>>>>>
> > >>>>>> So if there are any collectors, equipment museums, etc. that might be
> > >>>>>> interested in this, please let me know. I'm a bit sentimental about
> > >>>>>> this
> > >>>>>> thing, it's sort of a bit of history, and from what I can tell,
> > >>>>>> somewhat
> > >>>>>> rare (doesnt make it worth anything though :). Since it's a bit of a
> > >>>>>> curiosity, I'd like to pass it to someone that might be interested in
> > >>>>>> it
> > >>>>>> rather than just tossing it. I can always provide more details to
> > >>>>>> anyone
> > >>>>>> that wants them.
> > >>>>>>
> > >>>>>> Best regards,
> > >>>>>> Paul Davis - K9MR
> > >>>>>>
> > >>>>>>
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