[time-nuts] Re: Denmark in the Century of the fruitbat

[paul swed]

I have no idea if you can still get them.
But its a complete new cpu using a modern Beage Board thats linux based.
It allows typical modern access methods like Ethernet.
Think they were $80 at the time about 5 years ago.
Regards
Paul


On Thu, Jan 26, 2023 at 9:12 AM Jeremy Nichols via time-nuts <
time-nuts at lists.febo.com> wrote:

> What is “John’s CPU upgrade” for the HP-5370B? Maybe I need one of those.
>
> Jeremy
>
>
>
> On Wed, Jan 25, 2023 at 12:57 PM Poul-Henning Kamp via time-nuts <
> time-nuts at lists.febo.com> wrote:
>
> > As some of you may recall, legal time in Denmark is "the mean solar
> > time of the 15th eastern longitude", because nobody got around to
> > update the "Law of Time" from 1893 which said so.
> >
> > (See also: https://www.youtube.com/watch?v=yRz-Dl60Lfc)
> >
> > Today, finally, the government proposed new law which says which
> > will say:
> >
> >         "Danish normal time will follow UTC plus one hour"
> >
> > If ratified, the law will take effect on March 26 2023 at 02:00.
> >
> > The law does not say if 02:00 is according to the old or the new
> > law, which according to current Bulletin A will differ by 22.68
> > milliseconds by then.
> >
> > Related to this, the Danish Institute of Fundamental Metrology
> > received a grant last year to implement and distribute this new
> > legal timescale and to contribute it to BIPM.
> >
> > DFM went shopping at T4, and have spent half a year getting to know
> > their new maser, which they now report to BIPM as UTC(DFM):
> >
> >
> > https://webtai.bipm.org/ftp/pub/tai/Circular-T/cirthtm/cirt.420.html
> >
> > At some point soonish, they will also start to distribute their
> > timescale with NTP and PTP, at which point my 25 year long career
> > as unofficial danish provider of illegal time will come to an end.
> >
> > Related to that I note with some sadness, that my own time-nut
> > activities have taken a back-seat to my involvement in datamuseum.dk.
> >
> > As a result, I am starting feel a bit guilty about "hoarding"
> > time-nut kit, which I never find time do something with, and will
> > therefore entertain fair offers from fellow time-nuts on:
> >
> > one HP5065
> >     Has been running continuosly for five years.
> >
> > one HP5065
> >     Probably works.
> >     The synthesizer has been "repaired" by replacing it with a small
> >     microcontroller to produce the correct frequency, but I have
> >     not had it running for a long time with that repair.  Has been
> >     powered off for the last three or four years.
> >
> > One HP5370B
> >     With Johns CPU upgrade
> >
> > One HP5359A
> >     Does not seem to start now.  It used to.
> >
> > FE408 (15MHz)
> >
> > Austron 1150 OCXO (5MHz)
> >     Worked last I used it.
> >
> > IsoTemp OCXO118-20
> >     9.999933 MHz - (DMTD candidate!)
> >
> > Send me private email if you are interested...
> >
> > Poul-Henning
> >
> > --
> > Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
> > phk at FreeBSD.ORG         | TCP/IP since RFC 956
> > FreeBSD committer       | BSD since 4.3-tahoe
> > Never attribute to malice what can adequately be explained by
> incompetence.
> > _______________________________________________
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> >
> --
> Jeremy Nichols
> Sent from my iPad 6.
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