[time-nuts] HP Stories: Frequency Counter business

[johnk0gcj at juno.com]

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
> >
> >
> > _______________________________________________
> > time-nuts mailing list -- time-nuts at lists.febo.com
> > To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nut
> > s_lists.febo.com
> > and follow the instructions there.
> _______________________________________________
> time-nuts mailing list -- time-nuts at lists.febo.com
> To unsubscribe, go to
> http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com
> and follow the instructions there.
>


-- 
Dave Mallery, K5EN                (ubuntu linux 18-10)
80018 Lobo CP                            Grants,  NM  87020

      linux counter #64628 (since 1997)
_______________________________________________
time-nuts mailing list -- time-nuts at lists.febo.com
To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com
and follow the instructions there.
_______________________________________________
time-nuts mailing list -- time-nuts at lists.febo.com
To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com
and follow the instructions there.
____________________________________________________________
Judge Judy Steps Down After 23 Years Over This Controversy
glancence-hality.com
http://thirdpartyoffers.juno.com/TGL3131/5c48ad051c7142d045513st02duc