On 02/15/2011 04:18 AM, Charles P. Steinmetz wrote:
Bob wrote:
If all you are doing is running a Thunderbolt, you don't need a supply
that's more quiet than most batteries.
Most batteries are *very* quiet -- it takes heroic measures to get *any*
actively regulated supply into that ballpark.
Paramithiotti, Luciano Paolo S wrote:
http://www.timeok.it/files/5_to10_mhz_advanced_doubler.pdf
Best regards, Luciano
Luciano P. S. Paramithiotti
This design appears to have gone somewhat astray.
Adjusting the 200 ohm pot between the collectors should have very little
effect if the
On Tue, 2011-02-15 at 10:47 +0100, Magnus Danielson wrote:
This has gone overboard. The T-bolt generates digital noise all by
itself. It's the OCXO which would benefit most from a clean supply and
isolation from the rest of the T-bolt except that temp-sensor.
Considering the T-bolt has 3
Hi
Drop in frequency = mass increase. Mass is moving on to the crystal as time
goes on.
Since the package (hopefully) is sealed, there are a fairly limited number of
ways to do that.
1) The case of the crystal was more dirty than the blank when things were
sealed, equilibrium is to move to
Hi
The same board with all the logic crud on it has the 10 MHz signal amps on it.
Same supply / same ground for it all. There very much is a practical limit here.
Bob
On Feb 15, 2011, at 4:47 AM, Magnus Danielson wrote:
On 02/15/2011 04:18 AM, Charles P. Steinmetz wrote:
Bob wrote:
If
http://www.timeok.it/files/5_to10_mhz_advanced_doubler.pdf
This design appears to have gone somewhat astray.
high impedance unless of course the transistors enter saturation in which case
the phase noise performance will be severely degraded.
The best place for a balance adjustment circuit is
Hi
The +12 volts is what you want to keep stable. You would like to keep them all
reasonably clean. That's not to hard for -12 since there's next to no current
on it. +5 is mostly digital logic, it generates it's own suprs and noise. +12
runs the OCXO and it's internal regulators, it's likely
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On Tue, February 15, 2011 7:40 am, Brendan Minish wrote:
I guess what I am wondering, considering I already have a very low
noise, stable, battery backed 12V (13.8V
Hi
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There is also a school of thought that bouncing spam is no longer a good
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Here is a little more info on the OT-20.
I connected my OT-20 to a cell antenna and a
48VDC power supply and let the unit warm up.
I used a terminal emulator set to 9600 8N1 to
talk to the unit. The link below is the response
of the OT-20 to various commands I sent to it.
Press shift ? on
thanks ! now to find a CDMA antenna. My call the one that went with the unit
is long gone still attached to the building or in the bottom of the BIG metal
recycle bin.
-pete
On Tue, Feb 15, 2011 at 10:18 AM, Arthur Dent golgarfrinc...@yahoo.com wrote:
Here is a little more info on the OT-20.
Paramithiotti, Luciano Paolo S wrote:
http://www.timeok.it/files/5_to10_mhz_advanced_doubler.pdf
This design appears to have gone somewhat astray.
high impedance unless of course the transistors enter saturation in which case
the phase noise performance will be severely degraded.
The
Hello The Net:
When I retired almost 2 decades ago, I put my wristwatch in a drawer and
left it there.
I was hoping to never have to use it again.
Wishful thinking.
Now I need it, but it does not work, battery is depleted.
I need to open it up and replace the battery.
Any idea how I get my
Hi Stan...
I was able to find a local jewelry store that had a watch repair shop with
the tools, skills and knowledge needed to rebuild my Seiko a few months
back, and at a reasonable cost. Maybe that would work out for you too.
Tom Holmes, N8ZM
Tipp City, OH
EM79
-Original Message-
There are case tools available, but unless you're going to be fiddling
with the watch regularly (or just want more tools), it may be best to
find a reputable local jeweler or watch specialist to do the work.
timezone.com has active forums of watch-nuts, and you may be able to
find a
You may find that if you left a battery in there you may have other
problems. Having some expensive watches I leave that part up to an expert, take
it to a watch repair place.
Bert Kehren
In a message dated 2/15/2011 2:43:52 P.M. Eastern Standard Time,
stanw...@verizon.net writes:
Almost any place that sells quality watches will replace the battery
for you for about the price of the battery. It takes about 5 minutes
and they will have the tools and battery You should get most of your
$10 bill back as change
Typically there are two types of rear covers some are threaded
Sorry to the rest of the group for this post. Steve - my emails to you keep
on getting lost it seems. If you provide a phone number I will call you.
Thanks - Mike
To the rest who purchased them - they were all shipped last week. Thanks -
Mike
Mike B. Feher, EOZ Inc.
89 Arnold Blvd.
Howell, NJ,
Hi
There is one sneaky little gotcha in replacing a watch battery.
On a good watch, they replace the O-ring when they replace the battery. They
also make sure the inside of the case is nice and dry before they seal it.
Omit either step and your watch face is likely to fog when it gets cold. I
Very neat.
Great find you have. I will guess it locked to some celsite. But surprised
at what it states its accuracy is.
On Tue, Feb 15, 2011 at 1:18 PM, Arthur Dent golgarfrinc...@yahoo.comwrote:
Here is a little more info on the OT-20.
I connected my OT-20 to a cell antenna and a
48VDC
Please, help me to find the specifications for the
following brick:
Zeta Model 5705-02 X96 Frequency Multiplier
Thanks in advance,
Antonio
CT1TE
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I strongly urge you to send it back to Rolex. They will take the movement
out of the case, clean it, test it, replace all the gaskets and
seals, install a new battery, and even buff the case and bracelet for you.
I have a couple of Omegas (mechanicals) and about every 5 years I send them
to
Rolex... that makes an easy job hard.
Rolex typically uses a very strange formed wrench to screw off the
back right hand thread, by the way... where every other high
quality watch uses a simple case spanner wrench with 6 tangs, Rolex
Oyster's have 6 wiggly shaped forms that they repeat to
I defer to your expertise, Chuck. I will just note that when Omega
overhauls a mechanical they reset the warranty.
And it isn't *that* expensive, especially considering the initial
investment.
On Tue, Feb 15, 2011 at 4:12 PM, Chuck Harris cfhar...@erols.com wrote:
Rolex... that makes an
Reasonable is a matter of opinion. Rolex charges more than $500 for
servicing one of their Oyster Perpetuals. The Oysterquartz is a much
simpler watch.. (being all electronic), and should be less, but I'd
bet it isn't.
Also, be very sure that your watch is really a Rolex, with a real Rolex
I just take my Rolex to Sears. Then again, my Rolex only cost $10 and was made
in Taiwan. ;-)
I used to be of the school of just take the watch to any jeweler. More or
less true, but I had a battery replacement done at a foo-foo jewelry boutique
and no change from my $10. I did get change
All,
I have some cables available. Free to anyone who wants to visit me.
Belden 9913 (RG-8/U)
1x 150' with N connectors
2x 50' with N Connectors
1x 25' un-terminated
Commscope 7713NM (RG213/U)
1x 25' with N connectors.
Acutime Lead (ex Datum or possibly Odetics/KSI board
After I wrote just take it to any quality watch retailer I got to
thinking, Wow someone actually still uses a wrist watch? If you
look around almost no one does because all of our electronic gadgets,
cell phones and the like all have LCD screens that display the time.
A watch is redundant
On 02/16/2011 12:25 AM, Chris Albertson wrote:
After I wrote just take it to any quality watch retailer I got to
thinking, Wow someone actually still uses a wrist watch? If you
look around almost no one does because all of our electronic gadgets,
cell phones and the like all have LCD
I recently inherited my father's 40-year-old Omega Constellation watch. This
watch probably hasn't been used in 15 years or more.
I was going to take it to a reputable watch repair shop (Geneva Watch Repair in
San Francisco} but have put it off due to the expected cost.
What exactly is not
On Tue, Feb 15, 2011 at 3:35 PM, Flemming Larsen oz...@yahoo.dk wrote:
What exactly is not that expensive if I wanted to send it back to Omega in
Switzerland and what is the procedure?
Short answer: about $400 but it comes back like new and with a warranty.
Longer answer: Note that CHF and
My $17 battery went in a Polar heart rate monitoring watch. I have a Junghans
atomic watch and of course a Taiwan Rollex.
The atomic watch comes in handy for satellite watching in the boonies. I
suppose I could use my GPS for the same function.
Dis someone evaluate the new Agilent 53230? Something like the analysis at
http://www.febo.com/pages/hp5370b/ ?
--
Geraldo Lino de Campos
gera...@decampos.net
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Wrist watches are very useful when you don't have pockets. They
are also more convenient when you want to know the time without having
to fish around in your pockets with a free (or dirty) hand.
If I'm going to use a pocket watch, I'll use one of my nice antique
railroad watches.
-Chuck Harris
Magnus Danielson wrote:
On 02/16/2011 12:25 AM, Chris Albertson wrote:
After I wrote just take it to any quality watch retailer I got to
thinking, Wow someone actually still uses a wrist watch? If you
look around almost no one does because all of our electronic gadgets,
cell phones and the
It takes about 3 hours to take a watch down to its bits, clean it, reassemble,
and lubricate everything, and then do a preliminary adjustment.
Whatever you earn for 3-4 hours of your time would probably be a reasonable
price
as long as no parts are required.
If you are paying less than that
I wear a wrist watch with an hour hand, a minute hand, and a seconds
hand. When i wore a digital watch it seldom registered with me as to
what time it really was. Oh yes, I knew that it was, say, 3:15 PM,
but it didn't mean the same as looking at my old fashioned watch and
seeing the little
Magnus, seriously... how can a watch be off-topic? I have a nice collection
of both pocket and wrist watches. Some are more accurate than my cell phone
which I don't trust at all (it messed up due to a time-zone change while
driving last weekend).
A *watch* IS the measurement of time. We
On Feb 15, 2011, at 2:53 PM, Chris Albertson wrote:
Almost any place that sells quality watches will replace the battery
for you for about the price of the batteryYou should get most of
your
$10 bill back as change
Chris,
Maybe follow on messages to the list have clarified a bit:
Le 16/02/2011 00:57, Chris Albertson a écrit :
How can watches be OT on a time-nuts list? Yes the technology of
today is electronic but mechanical time keeping was the center of this
art for centuries.
I agree , with the caveat that posts keep to technical topics. There
are plenty of product
This has gone overboard.
As a sailor I'm careful about using that phrase.
Thanks for all the suggestions and information. I;m now back to my original
plan to use the Power-One +5V and +/- 15V switching power supply, followed by a
pair of 7812/7912 voltage regulators for the + and - 12V. The
BLING?
Really? Seriously? A watch is considered bling now? Can you build a
mechanical watch in your workshop that is as accurate as those manufactured
100 years ago? That's technology! Otherwise, a precision watch
mechanical or electronic is just as on-topic as a Cs standard and I'd
Le 16/02/2011 07:21, Heathkid a écrit :
BLING?
Really? Seriously? A watch is considered bling now? Can you
build a mechanical watch in your workshop that is as accurate as those
manufactured 100 years ago? That's technology! Otherwise, a
precision watch mechanical or electronic is
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