On 5/8/07, Bill Hawkins bill@iaxs.net wrote:

If you're looking at virtual clocks, there's always
http://www.jwz.org/xdaliclock/

--
73 de Maggie K3XS
Editor, Phil-Mont Mobile Radio Club Blurb - http://www.phil-mont.org
Elecraft K2 #1641 -- AOPA 925383 -- ARRL 39280

Did I never told the group about my GPS nixie clock? ;-)

http://www.hvsistemas.es/en/otros.html

Regards,

Javier,  EA1CRB

Rob Kimberley escribió:

This was the web's first nixie clock...
http://www.leapsecond.com/java/nixie.htm

And who needs NTP when you drive a nixie with a cesium standard:
http://www.leapsecond.com/pages/atomic-nixie/

/tvb

Lol, as I was reading the posts I was thinking, "I bet Tom hooked one up to
his Maser"....

And sure enough the proof is in the pictures. ;)

You guys crack me up.

Jason

On 5/8/07, Jason Rabel jason@extremeoverclocking.com wrote:

Of course, a truly hard-core Nixie tube clock wouldn't use
semiconductors at all.

http://www.jogis-roehrenbude.de/Leserbriefe/Bruegmann-Digital-Roehren-Clock/Digital-Roehrenuhr.htm

(or http://tinyurl.com/3632h )

http://www.eldocountry.com/projects/tubeclock.html

--
73 de Maggie K3XS
Editor, Phil-Mont Mobile Radio Club Blurb - http://www.phil-mont.org
Elecraft K2 #1641 -- AOPA 925383 -- ARRL 39280

Ah, but I saw some glass semiconductor diodes in there!  Look about half way
down the page.  Could they be 1N914's?  (I don't do German)

Daun

-----Original Message-----
From: time-nuts-bounces@febo.com [mailto:time-nuts-bounces@febo.com] On Behalf
Of Maggie Leber
Sent: Tuesday, May 08, 2007 12:02 PM
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] NTP Synchronised Nixie Tube Clock

On 5/8/07, Jason Rabel jason@extremeoverclocking.com wrote:

Of course, a truly hard-core Nixie tube clock wouldn't use
semiconductors at all.

http://www.jogis-roehrenbude.de/Leserbriefe/Bruegmann-Digital-Roehren-Clock/Digi
tal-Roehrenuhr.htm

(or http://tinyurl.com/3632h )

http://www.eldocountry.com/projects/tubeclock.html

--
73 de Maggie K3XS
Editor, Phil-Mont Mobile Radio Club Blurb - http://www.phil-mont.org
Elecraft K2 #1641 -- AOPA 925383 -- ARRL 39280

time-nuts mailing list
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https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts

Here's the evidence.

Daun

-----Original Message-----
From: time-nuts-bounces@febo.com [mailto:time-nuts-bounces@febo.com] On Behalf
Of Daun Yeagley
Sent: Tuesday, May 08, 2007 12:35 PM
To: 'Discussion of precise time and frequency measurement'
Subject: Re: [time-nuts] NTP Synchronised Nixie Tube Clock

Ah, but I saw some glass semiconductor diodes in there!  Look about half way
down the page.  Could they be 1N914's?  (I don't do German)

Daun

-----Original Message-----
From: time-nuts-bounces@febo.com [mailto:time-nuts-bounces@febo.com] On Behalf
Of Maggie Leber
Sent: Tuesday, May 08, 2007 12:02 PM
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] NTP Synchronised Nixie Tube Clock

On 5/8/07, Jason Rabel jason@extremeoverclocking.com wrote:

Of course, a truly hard-core Nixie tube clock wouldn't use
semiconductors at all.

http://www.jogis-roehrenbude.de/Leserbriefe/Bruegmann-Digital-Roehren-Clock/Digi
tal-Roehrenuhr.htm

(or http://tinyurl.com/3632h )

http://www.eldocountry.com/projects/tubeclock.html

--
73 de Maggie K3XS
Editor, Phil-Mont Mobile Radio Club Blurb - http://www.phil-mont.org
Elecraft K2 #1641 -- AOPA 925383 -- ARRL 39280

time-nuts mailing list
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time-nuts mailing list
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If you do a Google translate on the page, he actually states that there are
silicon diodes there.

Rob K

-----Original Message-----
From: time-nuts-bounces@febo.com [mailto:time-nuts-bounces@febo.com] On
Behalf Of Daun Yeagley
Sent: 08 May 2007 17:41
To: daun@yeagley.net; 'Discussion of precise time and frequency measurement'
Subject: Re: [time-nuts] NTP Synchronised Nixie Tube Clock

Here's the evidence.

Daun

-----Original Message-----
From: time-nuts-bounces@febo.com [mailto:time-nuts-bounces@febo.com] On
Behalf Of Daun Yeagley
Sent: Tuesday, May 08, 2007 12:35 PM
To: 'Discussion of precise time and frequency measurement'
Subject: Re: [time-nuts] NTP Synchronised Nixie Tube Clock

Ah, but I saw some glass semiconductor diodes in there!  Look about half way
down the page.  Could they be 1N914's?  (I don't do German)

Daun

-----Original Message-----
From: time-nuts-bounces@febo.com [mailto:time-nuts-bounces@febo.com] On
Behalf Of Maggie Leber
Sent: Tuesday, May 08, 2007 12:02 PM
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] NTP Synchronised Nixie Tube Clock

On 5/8/07, Jason Rabel jason@extremeoverclocking.com wrote:

Of course, a truly hard-core Nixie tube clock wouldn't use semiconductors at
all.

http://www.jogis-roehrenbude.de/Leserbriefe/Bruegmann-Digital-Roehren-Clock/
Digi
tal-Roehrenuhr.htm

(or http://tinyurl.com/3632h )

http://www.eldocountry.com/projects/tubeclock.html

--
73 de Maggie K3XS
Editor, Phil-Mont Mobile Radio Club Blurb - http://www.phil-mont.org
Elecraft K2 #1641 -- AOPA 925383 -- ARRL 39280

time-nuts mailing list
time-nuts@febo.com
https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts

time-nuts mailing list
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Perhaps my "hard core" requirement should be restated as "no
transistors" rather than "no semiconductors". :-)

On 5/8/07, Rob Kimberley rk@timing-consultants.com wrote:

--
73 de Maggie K3XS
Editor, Phil-Mont Mobile Radio Club Blurb - http://www.phil-mont.org
Elecraft K2 #1641 -- AOPA 925383 -- ARRL 39280

Hello,
as I do not have problems with this strange lange, I hope I can help finding the answer ;-)
According the description, not having started with a ready overall design the developper Friedhelm Bruegmann did work 7 years on it!
He did start, because he had the idea to bring all his collected valves into practical use after a long period of collection.
A lot of appearing technical problems had to be solved then. Therefore it was not possible to have a clear idea about the power needed for this project, which finally gave him some headaches. Though theoretically
possible to avoid  all semiconductors totally, the transformers of choice turned out to be too small. As there are already 103 vacuum tubes in use, just the heater current levelled up to 39A! But, as at the time of digital
breakthrough semiconducter diodes were already in mixed use with VTs, Friedhelm did not see a breach of style to use SC-diodes. He applied 4xBY227, 66xBA157, 72x1N4148. All these parts are clearly shown in the
diagrams and mentioned in the description. I stopped thinking about the bigger size of chassis he would have needed.
Anyway, a outstanding development!

Beside, did ENIAC use any semiconducters?

The run-up you can watch here:
http://www.jogis-roehrenbude.de/Leserbriefe/Bruegmann-Digital-Roehren-Clock/mov002.zip
The set-back is shown here:
http://www.jogis-roehrenbude.de/Leserbriefe/Bruegmann-Digital-Roehren-Clock/mov003.zip
The total schematic:
http://www.jogis-roehrenbude.de/Leserbriefe/Bruegmann-Digital-Roehren-Clock/sheet001.pdf

greetings,

Arnold, DK2WT

On Tue, 8 May 2007 12:34:52 -0400, Daun Yeagley wrote:

On Tue, May 08, 2007 at 02:09:53PM -0400, Maggie Leber wrote:

In that case, I guess my clock also qualifies: it uses neon lamps
as its "active" components.
The only semiconductors used are simple diodes and two blue LEDs.

See http://wwwhome.cs.utwente.nl/~ptdeboer/ham/neonclock/ .

73, Pieter-Tjerk, PA3FWM

Yeah, if I did something like this:

http://www.eldocountry.com/projects/tubeclock/tube2lrg.jpg

There would be a large bonfire on my table! I'm amazed he didn't short
something out!

Jason

Well, mine is not NTP or GPS controlled (unless the PC is), but it has a
lot of bells and whistles :-)

http://www.ko4bb.com/ham_radio/Clock

(free download, no charge even for the bugs, er... unexpected features)

Didier KO4BB

Bill Hawkins wrote:

I find it humorous, that at the bottom of that page it says: "Last
Updated: January 1, 1970 GMT"

At 06:49 PM 5/8/2007, Didier Juges wrote...

It does sound funny. Unfortunately, it seems like it may be your
configuration.

The page uses Javascript to instruct the browser to fetch the document
updated time stamp. It seems like your browser does not handle
Javascript the way it's intended. The way it's supposed to work: the
Javascript instructs the browser to fetch the document's time stamp and
render it on the page. The browser is either ignoring the request and
putting some default value, or it does not fetch it properly and fails
to convert the date to a proper text string.

Try another browser, here it looks fine (the page was updated earlier today)

I use Firefox under XP Pro, I have not tried others.

Didier KO4BB

Mike S wrote:

No kidding.  That clock would be equally at home in "Blade Runner" or
"Triumph des Willens."

-- john, KE5FX

At 07:22 PM 5/8/2007, Didier Juges wrote...

Actually, it appears to be a misconfiguration of your web site. It is
not returning Last-Modified: to an HTTP/1.1 request. Both a local site
and a different remote site I tested work fine.

On your site, Opera 9.2 always returns January 1, 1970 GMT. IE7 and
Firefox 2.0 always return the current time (the timestamp will change
each time the page is reloaded). IE/Firefox are simply using the Date:
response because the Last-Modified: response is missing.

A manual HTTP get from your site:

The Javascript works fine on a local web site. Manually doing an HTTP
get returns:

Also, a manual get from http://www.merlyn.demon.co.uk/last-mod.htm :

Just finished reading all of it; still have that feeling (Will Smith,
Independence Day)  "I have go to get me one of these!"

What would really sweeten the deal; tube version of 10811 to go with it.
Phase locked of course! :)

Jack

-----Original Message-----
From: time-nuts-bounces@febo.com [mailto:time-nuts-bounces@febo.com] On
Behalf Of John Miles
Sent: Tuesday, May 08, 2007 7:59 PM
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] NTP Synchronised Nixie Tube Clock

No kidding.  That clock would be equally at home in "Blade Runner" or
"Triumph des Willens."

-- john, KE5FX

time-nuts mailing list
time-nuts@febo.com
https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts

I think all the old hp 100-series frequency standards were
tube based. Even the 100 kc crystal was mounted inside a
conventional vacuum tube. The old GR quartz standards had
tubes: http://www.leapsecond.com/museum/gr1103a/
So these would make a nice companion to that all tube nixie
tube clock.

The model hp 101A was hp's first "transistorized" standard;
after that came the 103 104 106 107 105 105-44 108-11

/tvb

Well, that is even more interesting! You are correct of course, I had
not noticed.
I use a commercial ISP and I will open a service ticket.

I developed the original format of the web site (including the little
bit of Javascript) on a local Linux box a number of moons ago and
transfered it to a commercial ISP that shall remain nameless. At the
time, that was working (maybe the only thing that was working with that
ISP...) When I got tired of that ISP and switched to my current ISP
(Globat) 3 or 4 years ago, I do not remember checking the time stamps.
My fault :-(
I do not know how long it's been like that.

Thanks for pointing that out.

Didier KO4BB

PS: just for grins, I copied the Clock/index.html page to my cox.net
webspace (which I do not normally use) and it returns the right date, so
the Javascript at least is still OK.

http://members.cox.net/didier/

Mike S wrote:

I have an interesting 1MHz crystal that I got a number of years ago when I was
at the HP Santa Clara Division (Hertz Castle is what they called the place).
It is an HP P/N 5080-0031 1MHz crystal, gold plated, and in a glass vacuum tube.
I'll have to take a picture of it and post it... It's really quite pretty!

Daun

-----Original Message-----
From: time-nuts-bounces@febo.com [mailto:time-nuts-bounces@febo.com] On Behalf
Of Tom Van Baak
Sent: Tuesday, May 08, 2007 9:37 PM
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] NTP Synchronised Nixie Tube Clock

I think all the old hp 100-series frequency standards were
tube based. Even the 100 kc crystal was mounted inside a
conventional vacuum tube. The old GR quartz standards had
tubes: http://www.leapsecond.com/museum/gr1103a/
So these would make a nice companion to that all tube nixie
tube clock.

The model hp 101A was hp's first "transistorized" standard;
after that came the 103 104 106 107 105 105-44 108-11

/tvb

time-nuts mailing list
time-nuts@febo.com
https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts

Dear Pieter-Tjerk,

Nice to see your work on the Web! Two years ago I saw your neon-circuits
(counters, dividers etc) on the "Dag van de Amateur" (a Dutch
HAM-vention). Unfortunately you were not present at your display, but I
was very interested. Now I have a chance to have a close look at your
circuits!

73s Jeroen PE1RGE

Pieter-Tjerk de Boer wrote:

--
Ing. Jeroen Bastemeijer

Delft University of Technology
Department of Electrical Engineering
Electronic Instrumentation Laboratory
Mekelweg 4, Room 13.090
2628 CD Delft
The Netherlands

Phone: +31.15.27.86542
Fax: +31.15.27.85755
E-mail: J.Bastemeijer@TUDelft.nl
GPS: Lat N52.00002 Lon E4.37157 Alt 46.2m

On Wed, 9 May 2007 09:29:58 -0400, "Daun Yeagley" daun@yeagley.net wrote:

I just tossed up a new page on my site showing another jewel - a Western Electric AM
transmitter and the jewel of a crystal oscillator it used.

http://www.neon-john.com/Misc/WE_Trans/WE_Index.htm

John

John De Armond
See my website for my current email address
http://www.neon-john.com
Cleveland, Occupied TN
Remember, Amateurs built the Ark.  Professionals built the Titanic.