Yepp.
That was a brilliant idea...
...until I realized that I needed 115V for the XO quick-heaterand we use 230V
in Europe...
So the SMPS splution will not work for me.
I will use an old (dual primary winding) linear supply which has the advantage
of providinga regulated 24V that can be used for the heater windings of the
rubidiumcavity.
Ulf - SM6GXV
From: "time-nuts-requ...@febo.com" <time-nuts-requ...@febo.com>
To: time-nuts@febo.com
Sent: Friday, July 28, 2017 6:00 PM
Subject: time-nuts Digest, Vol 156, Issue 35
Send time-nuts mailing list submissions to
time-nuts@febo.com
To subscribe or unsubscribe via the World Wide Web, visit
https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
or, via email, send a message with subject or body 'help' to
time-nuts-requ...@febo.com
You can reach the person managing the list at
time-nuts-ow...@febo.com
When replying, please edit your Subject line so it is more specific
than "Re: Contents of time-nuts digest..."
Today's Topics:
1. Re: 5065A - Looking for AC XFMR PAECO 9100-2742 specification
(paul swed)
----------------------------------------------------------------------
Message: 1
Date: Fri, 28 Jul 2017 11:21:51 -0400
From: paul swed <paulsw...@gmail.com>
To: Discussion of precise time and frequency measurement
<time-nuts@febo.com>
Subject: Re: [time-nuts] 5065A - Looking for AC XFMR PAECO 9100-2742
specification
Message-ID:
<cad2jfaidmsnw5sudwgndgtdasasgji8cshubgw166hu3gsr...@mail.gmail.com>
Content-Type: text/plain; charset="UTF-8"
Poul
I looked at your site and the power supply. That makes a lot of sense.
Though I have not lost my transformer as Ulf has at least I see an answer
that I can use. I would have come up with the same approach but you did the
thinking for me.
Thanks
Paul
WB8TSL
On Thu, Jul 27, 2017 at 3:58 PM, Poul-Henning Kamp <p...@phk.freebsd.dk>
wrote:
> --------
> In message <675538475.428966.1501176257...@mail.yahoo.com>, Ulf Kylenfall
> via t
> ime-nuts writes:
>
> >Removing that board I discovered that the "24-32V" raw DC was some
> >40 Volts.
>
> That's a bit on the high side, but not excessively so.
>
> HP tended to let the linear regulators shave a big slice in
> precision instruments, probably to make sure that absolutely
> no ripple makes it through.
>
> If I were you, I would ditch the transformer entirely, and go with
> an external DC PSU and put a high-quality DC/DC converter in the
> HP5065A
>
> See:
>
> http://phk.freebsd.dk/hacks/HP5065A/20150930_dcdc/index.html
>
>
>
> --
> Poul-Henning Kamp | UNIX since Zilog Zeus 3.20
> p...@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.
> _______________________________________________
> 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.
>
------------------------------
Subject: Digest Footer
_______________________________________________
time-nuts mailing list
time-nuts@febo.com
https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
------------------------------
End of time-nuts Digest, Vol 156, Issue 35
******************************************
_______________________________________________
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.
