Brooke,
Well I would guess that all depends on what you fine under that cover!
:)
It appears to be a 4 wire system which could mean you may find a run
motor and a correction coil. But I'm just guess'n. :)
Send pictures!
Jack
-Original Message-
From: [EMAIL PROTECTE
On Thu, Jan 25, 2007 at 08:37:27PM -0800, Normand Martel wrote:
> Hi Tom...
>
> Not only Telechron were very popular electric clock
> movements, they were BY FAR the very best mechanical
> movements ever made.
>
> When young, i've opened A LOT of used
> electro-mechanical clock movements, and mo
Hi Tom...
Not only Telechron were very popular electric clock
movements, they were BY FAR the very best mechanical
movements ever made.
When young, i've opened A LOT of used
electro-mechanical clock movements, and most of them
showed evident traces of wear. Worn-out gear pinions,
dried-out and s
On Thu, 25 Jan 2007 16:50:46 -0500, "Mark Amos" <[EMAIL PROTECTED]>
wrote:
>This has led me to a silly quest. I'd like to use a traditional clock face
>and hands as an output device for a
>1PPS signal from my GPSDO.
>
>I know this is a very broad question, but does anyone have advice on where
Hi Jack:
OK, so now I've won the Edwards school clock eBay item number 110081232209
I choose it because of the second hand.
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=110081232209
But how how to connect it?
Have Fun,
Brooke Clarke
w/Java http://www.PRC68.com
w/o Java http://www.pacifi
There was a "The Amateur Scientist" article in the September 1974 issue of
Scientific American on "A venerable clock is made highly accurate by equipping
it with quartz-crystal works" which shows how to drive a pendulum clock with a
crystal oscillator. I have a PDF I can email (16MB) if you are
Thanks to Bruce, the app note is now at
http://www.ko4bb.com/ham_radio/Manuals/1_App_Notes
along with app note HP 57-1 Noise Figure Measurement and a Watkins
Johnson app note on Mixers (scanned by myself) and others
Didier KO4BB
Dr Bruce Griffiths wrote:
> I have just unearthed HP application
mark,
look at a cheap kitchen clock that runs on a battery and uses a 1pps to
move the second hand which moves gears for the rest.
tom w0kgw
- Original Message -
From: "Mark Amos" <[EMAIL PROTECTED]>
To:
Sent: Thursday, January 25, 2007 3:50 PM
Subject: [time-nuts] Odd request
> Ti
> I know this is a very broad question, but does anyone have advice on
> where I might start hacking (or making) a mechanical clock face to
> accomplish this? Is there a simple clock design that I could start
> with to build my own? Maybe replacing a pendulum or escapement with a
> solenoid? An
Oh, that would look so nice, next to some of my tube radios!
- Original Message -
From: "Dave Brown" <[EMAIL PROTECTED]>
To: "Discussion of precise time and frequency measurement"
Sent: Thursday, January 25, 2007 4:27 PM
Subject: Re: [time-nuts] Odd request
> Yes- XYL, SWMBO, whatever
Well well there's hope for her yet :)
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf
Of Dave Brown
Sent: Thursday, January 25, 2007 5:28 PM
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] Odd request
Yes- XYL, SWMBO, whatev
Yes- XYL, SWMBO, whatever!!!
But she does like my Telechron 8B01-like this one
http://uv201.com/Clock_Pages/Telechron/telechron_minitmaster.htm
which some 'twas say the original digital clock. The 50Hz motor in
mine needs replacing-considering a stepper motor driven from GPS-but
that's another s
Yes, I have heard of 30 movements, but the ones I am working with have a
sixty step racket and are designed for onece per minute stepping. That is
an awesome clock!
John
- Original Message -
From: "Dave Brown" <[EMAIL PROTECTED]>
To: "Discussion of precise time and frequency measuremen
It is elegant! Was that the XYL's opinion?
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf
Of Dave Brown
Sent: Thursday, January 25, 2007 5:07 PM
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] Odd request
- Origin
- Original Message -
From: "jmfranke" <[EMAIL PROTECTED]>
To: "Discussion of precise time and frequency measurement"
Sent: Friday, January 26, 2007 10:57 AM
Subject: Re: [time-nuts] Odd request
>I am going the same route and have discovered slave clocks which are
> solenoid driven cloc
On 1/25/2007 12:50:46 PM, Mark Amos ([EMAIL PROTECTED]) wrote:
> Time-nuts
>
> I appreciate the comments regarding horological obsession. Mine started
> with a desire for an accurate master
> oscillator for my ham shack (built and use a couple Shera
> GPSDO's) and has blossomed into a much broade
Mark Amos wrote:
> Time-nuts
>
> I appreciate the comments regarding horological obsession. Mine started with
> a desire for an accurate master
> oscillator for my ham shack (built and use a couple Shera GPSDO's) and has
> blossomed into a much broader interest
> in time (Ex tempus, sapientia?
There are some clocks like the ones in schools that use a 1PPS, 1PPM or faster.
On eBay
230081995247 nice
110082857347 neat!!
250076726064
110081232209
180076563718
This guy is selling a master simulator 200071362893
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
"Mark Amos" <[EMAIL PROTECTED]> wrote:
> I appreciate the comments regarding horological obsession. Mine started with
> a desire for an accurate master
> oscillator for my ham shack (built and use a couple Shera GPSDO's) and has
> blossomed into a much broader interest
> in time (Ex tempus, sa
Tom Van Baak (mobile) wrote:
>
> But one easy way to do it today is start with a $5 standard
> quartz clock display. 1) Either run a precise synthesized
> 32 kHz signal into it (replacing the xtal), or drive the little
> bipolar stepper yourself.
>
> A 50 millisecond +1.5 VDC pulse is all you nee
Hi Mark:
There may be some other approaches.
Start from an electric clock that's battery powered and replace all the
driving electronics and just drive the coil directly with the proper
pulse rate.
Start from an electric clock and replace just the crystal with a 32768
kHz signal.
In the above
> Time-nuts
>
> I appreciate the comments regarding horological obsession. Mine started with
> a desire for an accurate master
> oscillator for my ham shack (built and use a couple Shera GPSDO's) and has
> blossomed into a much broader interest
> in time (Ex tempus, sapientia?)
>
> This ha
I am going the same route and have discovered slave clocks which are
solenoid driven clocks. The clocks were once very popular in schools and
factories. The hands typically step in one minute steps.
See: http://www.clockhistory.com/setclocks/index.html
I plan to use one of the clock movements
Time-nuts
I appreciate the comments regarding horological obsession. Mine started with a
desire for an accurate master
oscillator for my ham shack (built and use a couple Shera GPSDO's) and has
blossomed into a much broader interest
in time (Ex tempus, sapientia?)
This has led me to a sill
I have the manual for the 1123-A,-AD and a working 1123-A. I can loan the
manual, it is too large to scan.
John
- Original Message -
From: "Dave Brown" <[EMAIL PROTECTED]>
To: "Discussion of precise time and frequency measurement"
Sent: Thursday, January 25, 2007 3:06 PM
Subject: Re:
I did find some information on the 693-A in a partial installation manual
for a C-21-H Standard Frequency Assembly. I can scan the one page that at
least shows the rack wiring harness if that would be of help. Or I could
loan you the partial manual so you could tell more about the high volyage,
e
I did find some information on the 693-A in a partial installation manual
for a C-21-H Standard Frequency Assembly. I can scan the one page that at
least shows the rack wiring harness if that would be of help. Or I could
loan you the partial manual so you could tell more about the high volyage,
e
I did find some information on the 693-A in a partial installation manual
for a C-21-H Standard Frequency Assembly. I can scan the one page that at
least shows the rack wiring harness if that would be of help. Or I could
loan you the partial manual so you could tell more about the high volyage,
e
I did find some information on the 693-A in a partial installation manual
for a C-21-H Standard Frequency Assembly. I can scan the one page that at
least shows the rack wiring harness if that would be of help. Or I could
loan you the partial manual so you could tell more about the high volyage,
Dr Bruce Griffiths wrote:
> I have just unearthed HP application notes:
>
> 301-1: "Low noise division of 10MHz oscillators"
>
> and
>
> 935: "Microwave power generation and amplification using impatt diodes"
>
> Anyone interested in scanned copies?
>
Yes please!
Be well -- Bruce
--
Bruce R
At 03:03 PM 1/25/2007, Hal Murray wrote:
>Best line:
>
>Toward the end of 1986, Atwood curtailed the museum's collecting and
>publishing activities. "Seth Atwood is the only person I know who was
>infected by the horological virus and later recovered," Andrewes says. "For
>most collectors, death is
- Original Message -
From: "jmfranke" <[EMAIL PROTECTED]>
To: "Discussion of precise time and frequency measurement"
Sent: Friday, January 26, 2007 8:29 AM
Subject: Re: [time-nuts] Nifty old GR OCXO? (looking for information
on693-ASYNCRO-CLOCK)
>I have a 693-B which has a large dial
> http://www.smithsonianmagazine.com/issues/2007/january/sundial.php?page=1
Neat! Thanks.
Best line:
Toward the end of 1986, Atwood curtailed the museum's collecting and
publishing activities. "Seth Atwood is the only person I know who was
infected by the horological virus and later recovere
I have a 693-B which has a large dial, the internal 1kHz amplifier, and the
power supply. I also have a 1103-A which requires an external power supply.
They are slowly moving up my to do list. The only manuals I have are for
the 1103-A. I would be interested in a manual for the 693-B.
John
-
http://www.smithsonianmagazine.com/issues/2007/january/sundial.php?page=1
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While we're on the old GR subject...
I have a General Radio 693-A "syncro-clock and amplifiers" that contains
a GR model 611 syncro-clock module. I think the oscillator and power supply
are separate (and I don't have them). Does anyone have any information on
the 693-A?
(Copies of a manual would
Hal Murray wrote:
> Is there any obvious place to get them?
>
> I'm looking for the hand-friendly handles, not the rack mount ears.
>
> The handles are option 907, part number 5061-9688. I didn't have any luck
> via eBay or google.
>
>
> How do I get the handles off? Or rather, how do I get the
Bruce,
If you can, please upload them to ftp.ko4bb.com using:
Login: manuals
Password: manuals
Then I will move them with the other manuals and app notes at
http://wwwmko4bb.com/ham_radio/Manuals
Thanks in advance
Didier KO4BB
Sent via BlackBerry from Cingular Wireless
-Original Message-
From: John Ackermann N8UR <[EMAIL PROTECTED]>
Subject: Re: [time-nuts] old HP application notes
Date: Thu, 25 Jan 2007 08:11:29 -0500
Message-ID: <[EMAIL PROTECTED]>
Bruce,
If you send it to me I'll happilly toss it up on my web!
Especially 301-1 is would be nice to have.
PS. [EMAIL PROTECTED] i
Hal Murray wrote:
> Is there any obvious place to get them?
>
> I'm looking for the hand-friendly handles, not the rack mount ears.
>
> The handles are option 907, part number 5061-9688. I didn't have any luck
> via eBay or google.
>
>
> How do I get the handles off? Or rather, how do I get
Yes!
John
Dr Bruce Griffiths wrote:
> I have just unearthed HP application notes:
>
> 301-1: "Low noise division of 10MHz oscillators"
>
> and
>
> 935: "Microwave power generation and amplification using impatt diodes"
>
> Anyone interested in scanned copies?
>
> Bruce
>
>
Tom Van Baak (mobile) wrote:
> For other old GR oscillator stuff see:
> http://www.leapsecond.com/museum/gr1103a/
> http://www.leapsecond.com/museum/gr1190a/
> http://www.leapsecond.com/museum/gr676b-50kc/
> http://www.leapsecond.com/pages/old-genrad/
Tom, if you have a working Genrad oscillator,
Is there any obvious place to get them?
I'm looking for the hand-friendly handles, not the rack mount ears.
The handles are option 907, part number 5061-9688. I didn't have any luck
via eBay or google.
How do I get the handles off? Or rather, how do I get the piece of plastic
covering the
Please I am also interested in 301-1: "Low noise division of 10MHz oscillators"
Thanks!
JOSE
--
73 EB5AGV / EC5AAU - JOSE V. GAVILA
La Canyada - Valencia (SPAIN) - Loc: IM99SM
Vintage Radio: http://jvgavila.com
Vin
Yes,
also for the 301-1!
Ulrich Bangert
[EMAIL PROTECTED]
> -Ursprüngliche Nachricht-
> Von: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED] Im Auftrag von Dave Brown
> Gesendet: Donnerstag, 25. Januar 2007 10:19
> An: Discussion of precise time and frequency measurement
> Betreff: Re: [t
Ditto for 301-1
DaveB
- Original Message -
From: "Paramithiotti, Luciano Paolo S" <[EMAIL PROTECTED]>
To: "Discussion of precise time and frequency measurement"
Sent: Thursday, January 25, 2007 10:12 PM
Subject: Re: [time-nuts] old HP application notes
> Yes Bruce
> I am interested in
Yes Bruce
I am interested in:
301-1: "Low noise division of 10MHz oscillators"
Thanks,Luciano
Luciano P. S. Paramithiotti
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Dr Bruce Griffiths
Sent: Thursday, January 25, 2007 10:06 AM
To: Discussion of pre
A GR system - as per the tvb web page - in operation at Makara (an
MF/HF receiving/monitoring site) near Wellington NZ-this came out of
service in 1955 and was replaced with the completely home-grown
frequency measuring system in the second photograph.
http://homepages.ihug.co.nz/~tractorb/GR%20
I have just unearthed HP application notes:
301-1: "Low noise division of 10MHz oscillators"
and
935: "Microwave power generation and amplification using impatt diodes"
Anyone interested in scanned copies?
Bruce
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> http://www.leapsecond.com/museum/gr1190a/
That's a nifty piece.
What's the ADEV at tau=1s ?
-ch
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Sorry about that - could have sworn it was Vigg
Rob
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Rick Karlquist
Sent: 24 January 2007 22:58
To: Discussion of precise time and frequency measurement
Cc: 'Discussion of precise time and frequency meas
Since the topic has been raised- herewith a few pix of an equally old
(well, nearly!) OCXO using mercury-in-glass high and low set point
thermometers for temperature control.
http://homepages.ihug.co.nz/~tractorb/oven/
This came out of an early openwire carrier system-of UK
origin-probably immed
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