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