[time-nuts] HP Stories: Frequency Counter business

[paul swed]

And by gosh I have a dymec 60 KHz receiver that still works. I restored it.
Those were back in the real timing days with npl wwvb and others. None of
these satellite things. Chuckle
By the use of the clever label they could cover both product lines. HP and
Dymec.
Regards
Paul
WB8TSL

On Wed, Jan 23, 2019 at 2:01 PM johnk0gcj at juno.com <johnk0gcj at juno.com>
wrote:

> Let's not forget dymec.For the younger crowd, write 'dymec' on a piece of
> paper and then look at it upside down, just the first two letters.John
> K0GCJ
>
> ---------- Original Message ----------
> From: Bob via time-nuts <time-nuts at lists.febo.com>
> To: time-nuts at lists.febo.com
> Cc: millerke6f at aol.com
> Subject: Re: [time-nuts] HP Stories: Frequency Counter business
> Date: Tue, 22 Jan 2019 04:49:31 +0000 (UTC)
>
> Hi
> I still have a 524 with a 500 MHz plugin sitting in one of my sheds.  I
> used to keep a fairly large house fan aimed at the critter to keep it from
> tripping its Klixon thermal overload switch.  Ahhhh they were the days
> indeed.
> Bob KE6F
>
> -----Original Message-----
> From: Dave Mallery <dave.mallery at gmail.com>
> To: Discussion of precise time and frequency measurement <
> time-nuts at lists.febo.com>
> Sent: Mon, Jan 21, 2019 8:02 pm
> Subject: Re: [time-nuts] HP Stories: Frequency Counter business
>
> in high school, i had a summer job at the NYU EE dept up in the Bronx
> campus (where my dad taught english!)
>
> this was the summer of 1956 and 57.  in the lab equipment issuing room
> there lived a 524 with the vertical neon lites.
> along with a plethora of other now ancient equipment.
>
> long ago in a galaxy far away...
>
> 73
>
> dave mallery
>
>
>
> On Mon, Jan 21, 2019 at 5:04 PM Don <dlewis6767 at austin.rr.com> wrote:
>
> > http://www.hpl.hp.com/hpjournal/pdfs/IssuePDFs/1951-01.pdf
> > On Mon, 2019-01-21 at 14:15 -0500, Gordon Batey wrote:
> > > Greetings to all,
> > >
> > > I believe that was the HP 525 counter.  I had one as my first
> > > counter
> > > which I picked up surplus many years ago.  It had several plug-ins
> > > for
> > > different
> > > frequency ranges.  Kept the basement warm in the winter time.  The
> > > vhf
> > > plugin was a heterodyne mixer as I recall.  This unit ontained MANY
> > > tubes
> > > and a
> > > fairly large fan to remove the heat.  I gave it to another ham
> > > several years
> > > ago.
> > >
> > >
> > > I really enjoy the HP stories.
> > >
> > > Gordon Batey
> > > WA4FJC
> > >
> > >
> > >
> > > Hi,
> > > I used an HP counter in 1961 that had these vertical strings of neon
> > > tubes
> > > behind numbers, and the two least significant decimals were read off
> > > two
> > > milliamp meters numbered 0 to 10. For each count the needles would
> > > point to
> > > the number to be read. The whole instrument was a 2 foot cube that
> > > sat on a
> > > trolley.
> > > After all this time I can not remember the model number. Our company
> > > repaired Air force instruments and recalibration of frequency
> > > ?meters?
> > > (calibrated heterodyne oscillators).
> > > Cheers,
> > > Neville Michie
> > >
> > >
> > > _______________________________________________
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>
>
> --
> Dave Mallery, K5EN                (ubuntu linux 18-10)
> 80018 Lobo CP                            Grants,  NM  87020
>
>       linux counter #64628 (since 1997)
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