[time-nuts] HP Stories: Frequency Counter business

[Don]

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.