Happy to post the pix someplace but do not have any accounts like facebook
etc.
Though a great home would be Diddiers site. I could send perhaps 10 of the
best pix.
By the way looking into the oven you can see the glass rb filter cell. Talk
about a classy piece of technology. This ain't no FRS-c.
Hi guys,
I have uploaded a new version of the CTRI-Scope measurement. There was a
typo on a number and several descriptions that has probably excited more
than one person and that has triggered my stress to levels I did not know
until now.
Having said that, have a look at it again if you are
Tom,
many thanks to you and John for starting and supporting this list. It
is one of the best I know, with a very good S/N, and a lot of competent people.
Honestly, I have no idea on how to improve it :-) - IMHO it is perfect as is.
Marco IK1ODO
I am restarting an old project to transplant my HP Z3801A guts into a
5065A carcass, and now designing the power system. I'd like to keep
the original LED clock function, but with all new power and
interface. I traced out the circuit partially a few years ago, and am
going by the notes I made
Ed the 5065a manual does have the schematics. Its available online free. I
think Diddiers site has it. There seemed to be at least 2 chips that were
used.
Bottom line is the data on how hp used and drove is available which is great
news
Paul
WB8TSL
On Tue, Sep 27, 2011 at 1:54 PM, ed breya
Ed I may be wrong. Its not on Diddiers site. I thought I obtained my print
from the web.
But I also do not seem to have the pdf. Quite curious. Will keep digging
On Tue, Sep 27, 2011 at 2:25 PM, paul swed paulsw...@gmail.com wrote:
Ed the 5065a manual does have the schematics. Its available
One version of the 5065 manual is at www.to-way.com
At 11:30 AM 9/27/2011, you wrote:
Ed I may be wrong. Its not on Diddiers site. I thought I obtained my print
from the web.
But I also do not seem to have the pdf. Quite curious. Will keep digging
A fine is a tax for doing wrong. A
Thanks for the leads, guys. I did indeed find the .pdf manual at
www.to-way.com
and starting to study it.
Ed
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In message caf_se-dk+1h1t2xks1u19ty7nsmxrtqd+zv_2wbs0njm1ey...@mail.gmail.com
, Robert Darlington writes:
So I find that somewhat surprising (Aluminum as a material for UHV systems)
because they outgas water -for months. Anodized aluminum is especially
bad! Did they make any suggestions on
Had,
That is the version I had printed out. Oddly however I filed it wasn't very
smart.
Thanks
On Tue, Sep 27, 2011 at 2:37 PM, Had h...@to-way.com wrote:
One version of the 5065 manual is at www.to-way.com
At 11:30 AM 9/27/2011, you wrote:
Ed I may be wrong. Its not on Diddiers site.
Well, this is supposed to be a list about amateur precision
timekeeping, so at the risk of looking like a total idiot, I'll take
the bait and throw out a few questions.
First - I've only been on this list for about 6 months, and am only
just beginning to get my head around some of the concepts
You would need a huge getter for what comes out.
Machining wise might not be so crazy. But then you have to keep feeding it
stuff.
Sounds like the backyard swimming pool. Always costs $$ :-)
Paul
WB8TSL
On Tue, Sep 27, 2011 at 3:20 PM, Poul-Henning Kamp p...@phk.freebsd.dkwrote:
In message
The clock chip is a NS MM5313N, if I recall right one of our list members
may have an extra one. I have MM5314's would work but would require
rewiring. Good luck.
Bert Kehren
In a message dated 9/27/2011 3:37:04 P.M. Eastern Daylight Time,
paulsw...@gmail.com writes:
Had,
That is
Brent the interesting thing about this list is indeed the wide range of
capabilities many have. Even as amateurs.
So its very interesting. But when I look at what Corby is doing for a maser,
I have to say I am not that clever. Hydrogen disassociators on and on.
(Pretty sure thats spelled wrong.)
In message CAP6i9MmntLTia=XXUafbyrp+e3=koc1TRSEvL=g05emepq4...@mail.gmail.com
, brent evers writes:
So at its most basic, I'm wondering what type of clock would make the
most sense to consider - cesium fountain, or hydrogen maser?
Based on what I can gather, a fountain is probably easier to make
Boy I have to go back and check. I thought fountains used lasers and such to
slow the atoms down. Are we speaking to some gas fountain without optics
much like a traditional CS standard?
Paul
WB8TSL
On Tue, Sep 27, 2011 at 3:46 PM, Poul-Henning Kamp p...@phk.freebsd.dkwrote:
In message
On 27/09/11 21:46, Poul-Henning Kamp wrote:
In messageCAP6i9MmntLTia=XXUafbyrp+e3=koc1TRSEvL=g05emepq4...@mail.gmail.com
, brent evers writes:
So at its most basic, I'm wondering what type of clock would make the
most sense to consider - cesium fountain, or hydrogen maser?
Based on what I
Poul-Henning Kamp wrote:
In messagecaf_se-dk+1h1t2xks1u19ty7nsmxrtqd+zv_2wbs0njm1ey...@mail.gmail.com
, Robert Darlington writes:
So I find that somewhat surprising (Aluminum as a material for UHV systems)
because they outgas water -for months. Anodized aluminum is especially
bad! Did
In message cad2jfagqboeg-iyb5z2_rbjuldj7sbvc5bofpntk45rjesr...@mail.gmail.com
, paul swed writes:
Boy I have to go back and check. I thought fountains used lasers and such to
slow the atoms down.
They do. And a microwave field.
But I still think it is easier to make work than the state
On 27/09/11 22:23, Poul-Henning Kamp wrote:
In messagecad2jfagqboeg-iyb5z2_rbjuldj7sbvc5bofpntk45rjesr...@mail.gmail.com
, paul swed writes:
Boy I have to go back and check. I thought fountains used lasers and such to
slow the atoms down.
They do. And a microwave field.
But I still think
Having only been on the list little over two years I may revisit a subject
covered extensively in the past. With all the know how and dead HP Cs
tubes, would it not make more sense to explore rejuvenating Cs tubes and look
at
ways to improve its performance. I have the innards of two tubes
Hi,
The clock chip is a National MM5313N, it is also the one used in the
digital clock for the HP 5061A.
Schematics were in the update pages for the older manuals and in the
manual for the newer ones.
Corby Dawson
60-Year-Old Mom
Don't be fooled by the apparent simplicity of a trap. Very good scientists
have a lot of trouble getting then working.
-John
==
A variant which might be of interest is ion traps. Should not need that
complex mechanics even if it has some challenges.
Trying to approach any of
J. Forster wrote:
Boy I have to go back and check. I thought fountains used lasers and such
to slow the atoms down.
That's a trap. Optical molasses.
A fountain essentially makes a beam and probes it orthogonal to the beam,
where the Dopplar shifts are low. The beam basically makes all
In message 63346.12.6.201.2.1317156414.squir...@popaccts.quikus.com, J. Fors
ter writes:
As to making one, I'd use stainless Conflat parts from eBay, used
commercial pumps, feedthroughs, fittings, etc. You can spend a lot of
time trying to leak check home brew stuff.
USNO gave up on stainless,
That will be fine :)
Didier KO4BB
Sent from my BlackBerry Wireless thingy while I do other things...
-Original Message-
From: paul swed paulsw...@gmail.com
Sender: time-nuts-boun...@febo.com
Date: Tue, 27 Sep 2011 09:04:32
To: Discussion of precise time and frequency
Diddier
Thank you.
For everyone else I just completed and emailed a word doc to Bob who offered
to host it. Its 7 MB. Turned out very nicely. You also have my hints on the
project.
Diddier I will upload it shortly to your site also.
The lamps re-installed and the HP5065a is warming up. I do have
I know people are not crazy about ebay but I use it for a source of
obsolete IC's and even transistors and there is a listing for MM 5313, try an
offer or if you want to adapt a 5314 which takes some jumpers but doable
contact me direct.
Bert Kehren
In a message dated 9/27/2011 3:41:00
On 9/27/11 1:11 PM, Magnus Danielson wrote:
Trying to approach any of these would require reading up on a large
number of articles and patents to kind of learn the field. In alla of
these, getting full performance would involved much effort.
This is the book you want to start with:
On 9/27/11 1:46 PM, J. Forster wrote:
As to making one, I'd use stainless Conflat parts from eBay, used
commercial pumps, feedthroughs, fittings, etc. You can spend a lot of
time trying to leak check home brew stuff.
The home built fusor list (http://www.fusor.net/) is one place to look
The original clock IC is probably OK - I needed to ID it to figure
out how to modify the circuit for new power and interface. I have a
couple of (probably OK) pulled MM5315s also, which could sub with a
slight pinout rearrangement if needed.
After looking at the manual, I realized that I did
The word doc is on Diddiers site under Hp_agilent.
The name is HP 5065a rubidium osc photo and is 7 MB in size.
Good evening everyone.
Regards
Paul
WB8TSL
On Tue, Sep 27, 2011 at 6:21 PM, paul swed paulsw...@gmail.com wrote:
Diddier
Thank you.
For everyone else I just completed and emailed a
Sent my repair pix to the group Magnus.
On Sat, Sep 24, 2011 at 7:09 AM, Magnus Danielson
mag...@rubidium.dyndns.org wrote:
Fellow time-nuts,
I now have three 5065A in my lab (not all mine) and I can now conclude that
the A15 PSU board C8, C9 and C10 caps has gone bad on all three. The only
Ed,
The LED clock is relatively simple. It is power, ground, and a 1 PPS pulse.
There are also some controls if the AC power goes out and the unit goes to
battery back up. Then you have to push the button on the front to see the
time.
The chip is a 5313.
There are also at least two versions
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