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 > > > > _______________________________________________ > > time-nuts mailing list -- time-nuts@febo.com > > To unsubscribe, go to > > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > > and follow the instructions there. > > > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
