[time-nuts] HP Stories: Frequency Counter business
Gordon Batey
gpbatey at wildblue.net
Mon Jan 21 19:15:36 UTC 2019
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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