[time-nuts] Possibly OT - Any interest in a vintage HP/DymecDY-5842 VLF receiver?

[WB6BNQ]

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



paul swed wrote:

> Boy do I agree with that.
> If Diddier is reading this, wonder if we could add a meter scale to your
> fine manual repository?
> Regards
>
> On Tue, Oct 12, 2010 at 12:38 AM, Rex <rexa at sonic.net> wrote:
>
> >  The ability to easily do this kind of graphics stuff (scanning and
> > printing) at an affordable price is one of the few recent innovations that I
> > appreciate over the great design and longevity in older tech equipment. Meld
> > the two =  win-win.
> >
> >
> >
> >
> > On 10/11/2010 5:22 PM, paul swed wrote:
> >
> >> 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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