The second thing I learned to program was a 9100 calculator, very
similar to the 5360's programming style and "language," RPN and all.
Jeremy
On 4/13/2016 6:27 PM, paul swed wrote:
Amazing more then 2 people know what a 5360 is. More that they still work.
I would say the most interesting thing that I did was measure the color
subcarrier phase shift on Geo-synchrounous satellites. This represented the
drift of the satellite. I knew the references only to well and they were
Cesium at the origination site on the CBS network. I captured and processed
the readings over many weeks and slowly but surely the expected orbital
behaviors showed up.
This was Xerox-820 and apple II time frame.
I could easily see how you might expand what the system could do. Just no
real need.
So the 5360 is about as close as I will ever get to the HP calculators.
Though I have looked for many years.
Regards
Paul
WB8TSL
On Wed, Apr 13, 2016 at 6:43 PM, Pete Lancashire <p...@petelancashire.com>
wrote:
Tom
Add to your list
http://www.hp.com/hpinfo/abouthp/histnfacts/publications/measure/pdf/1969_06.pdf
On Wed, Apr 13, 2016 at 12:57 PM, Tom Van Baak <t...@leapsecond.com> wrote:
John,
I agree with Paul, an absolutely amazing instrument. The early models
have
nixie display, later ones plasma. 11 digits! In 1969! It was the first hp
instrument that was capable enough to compute stability statistics. In
real-time! Like Paul I have a couple, along with various the accessories.
Built like a tank, even the keyboard.
You'll find mention of the counter in old technical articles, sometimes
including the programs people would write for automated statistics. I've
always thought the 5360 was uniquely at the cross-roads between hp as an
instrument company and hp as a computer company (not to mention hp as a
printer ink company). You can see the DNA of each of these in the 5360 &
its accessories.
You were probably reading this major 5360A Computing Counter issue:
http://www.hpl.hp.com/hpjournal/pdfs/IssuePDFs/1969-05.pdf
Here's all about the 5375A keyboard:
http://www.hpl.hp.com/hpjournal/pdfs/IssuePDFs/1970-03.pdf
And this is where the diode and punch card interface is shown, as well as
ADEV from 1 us to 1 s (see page 4, fig 4).
http://www.hpl.hp.com/hpjournal/pdfs/IssuePDFs/1970-12.pdf
More on ADEV on the 5360:
http://www.hpl.hp.com/hpjournal/pdfs/IssuePDFs/1971-11.pdf
Select high-res page scans from my own hardcopy HPJ collection are here:
http://www.leapsecond.com/hpj/
For example, the 79-step ADEV program is here:
http://www.leapsecond.com/hpj/v22n4/v22n4p10.jpg
Finally, do not miss HP AN116 "Precision Frequency Measurements":
http://www.hpmemoryproject.org/an/pdf/an_116.pdf
/tvb
----- Original Message -----
From: "John Ackermann N8UR" <j...@febo.com>
To: <time-nuts@febo.com>
Sent: Wednesday, April 13, 2016 9:38 AM
Subject: [time-nuts] HP 5360A History?
I was browsing through the HP Journal archives and came across the May,
1969 issue, dedicated to the new 5360A Computing Counter -- "An
Electronic Counter for the 1970s!"
I don't recall hearing much about these in time-nuts lore. I can guess
from the Journal articles that it was a beast to keep running and was
very expensive (500 ICs and a 10A 5V power supply).
Is anyone here familiar with the story of this product?
John
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