ane's reply.
Bill Hawkins
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Bruce Griffiths
Sent: Monday, October 08, 2007 4:10 PM
To: Tom Van Baak; Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] from Sputnik to CD
); SAE
Excuse me, but I'm despondent. I wish I had not gone on the trip.
Bill Hawkins
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PM. I wouldn't miss it. If anybody else is
interested and wants to carpool, I'm at 10300 Colorado Road in
Bloomington, 55438. Leaving at 6 PM or so.
Let me know.
Bill Hawkins
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To unsubscri
chell, "Good evening Mr. and Mrs. America,
and all the ships at sea" with a Morse background.
And then, there was H. V. Kaltenborn.
Those were the days when nobody could buy a newscaster, let alone a
major politician.
Amazing what happens when you roll back time into history
ync is not useful if you are interested in the
correct time to less than a minute or two.
FWIW,
Bill Hawkins
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and follow the in
ut of time
(what a concept).
Bill Hawkins
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Tim Shoppa
Sent: Saturday, July 28, 2007 9:50 AM
To: time-nuts@febo.com
Subject: Re: [time-nuts] Time may not exist
"Didier Juges" <[EMAIL PROTECTED]>
ength seemed suspect.
But it's all good fun, right up there with building a basement
time standard - actually a frequency standard and a counter.
There was a time when a time standard was a burning candle, or
dripping water. Accuracy is limited by the available technology.
Bill Hawkins
Come to t
); SAEximRunCond expanded to false
Errors-To: [EMAIL PROTECTED]
John,
I've been through the exercise with a spam cop that held my ISP
hostage for money. Really bad deal.
We seem to have two new headers: ); SAEximRunCond and Errors-To: .
Is that abnormal?
Bill Hawkins
-Original Me
You don't get hit in the face because there is a phantom
force that attracts the ball towards the hole, but only after
it has been hit.
Bill Hawkins
Or maybe it's the spin . . .
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Palfreyman,
Aargh!
Please change "Centripetal force also goes away if radial motion
goes away." to "Centripetal force also goes away if angular motion
goes away."
-Original Message-
From: Bill Hawkins [mailto:[EMAIL PROTECTED]
Sent: Tuesday, May 29, 2007 12:17 PM
To: 'D
ol of altitude.
Bill Hawkins
-Original Message-
From: James Maynard
Sent: Tuesday, May 29, 2007 11:26 AM
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] FW: Pendulums & Atomic Clocks & Gravity
Didier Juges wrote:
> Bruce,
>
> A lot of th
ly unyielding, even in
intelligent people.
But this is probably not within the scope of "time-nuts."
Best regards,
Bill Hawkins
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nal force.
The fact that some people call the rotational acceleration 'fictitious'
does not alter the results of the equation.
Sorry, I don't accept the idea that the Earth and the Moon repel each
other with only gravitational forces.
Regards,
Bill Hawkins
-Original Mess
the
request time, the receipt time at the server, the sent time at the
server and the receipt time at your PC.
Dunno about Meinberg. Prefer the Brandenberg Concertos myself.
Bill Hawkins
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Joseph Gray
Sent
of Moiré herringbone, but can't get size or
brightness right. Ten hours of messing with trying to guess where
the programmer put things or wants me to do is enough.
Can anyone provide enlightenment on scanning grayscale accurately?
Bill Hawkins
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ht I'd
have fun restoring it, but my time is running out. $50 plus shipping,
with manual.
Bill Hawkins
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I can tell you that the IBM 704 vacuum tube computer from the
fifties used lots of glass diodes in its 8 tube plug-in units.
I still have a few. They'd make great module frames for your own
version of a vacuum tube clock. Sorry, no sockets.
Bill Hawkins
-Original Message-
From: [
That's great information.
For those that don't have boats, Furono is a major vendor of
navigation equipment. NMEA is the National Marine Electronics
Association. They developed a standard for ASCII interchange
of information among navigation devices.
Bill Hawkins
-Origin
Well, I've been using the virtual Nixie clock from JagAir at
http://www.clockvault.com/nixie.htm
No hardware to fail, choice of display tubes, but it only runs
on Windows. The software is free. I'm a satisfied user, with no
commercial interest. There is other good stuff at the s
The pictures show why the 3815 never became popular.
Matching that monstrous connector would be a problem.
The project is impractical without the matching card
file.
And what is that big, empty DB connector in the middle?
Bill Hawkins
-Original Message-
From: [EMAIL PROTECTED
er will be wrong by the number of counts added or
dropped while lock was lost.
Hope that helps.
Bill Hawkins
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Mike Feher
Sent: Wednesday, April 25, 2007 11:46 AM
To: 'Discussion of precise time and fr
ature. Surely, there's no
one in this group that has bought an expensive instrument just to
keep up with the group.
I am not now and never have been an audiophile. It just bothers me
when someone writes off complex human behavior with a single epithet.
Bill Hawkins
... who can't sle
uspension. Hmm, perhaps an electrostatic suspension? Simple enough to
shield the vacuum tank. With precision timing electronics, I don't need a
one second swing period.
Interesting?
Bill Hawkins
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Neville,
I'd like to look at your pictures, but Yahoo wants to sell me stuff.
Synchronome wants a real email address, and that they won't get.
If you can't find someone to host them, could you mail them to me?
My address is [EMAIL PROTECTED] Spammers already have it. It's the direct mail
that
Chuck,
There is no spare time left in my days.
I respond to offers better than hints.
Have you checked the HP Archive? ... hint... hint
Bill Hawkins
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Chuck Harris
Sent: Friday, March 23, 2007 11:06 PM
tly, the motor could have bearings
that scream at 1 KC. I put mine in a box lined with fiberglass
insulation to kill the noise. Bearings can be replaced.
While you're in there, look for leaking wet tantalum capacitors.
The residue is usually white.
All that aside, it's a mechanical marvel
and excitation mechanisms in my
lifetime. Especially since I live 100 meters from a low-speed freight
railroad track. Pity, really. Too soon old, too late smart.
Hope I haven't depressed you.
Best regards,
Bill Hawkins
P.S. Visited Melbourne and Sydney, crossing the bridge on foot, in the
something like
the three clocks at WWV. Paid an average of $50 each for them.
And now, back to your regular messages.
Bill Hawkins
-Original Message-
Bruce Lane wrote, in part,
"Does anyone know of any DIY displays that'll decode a standard IRIG-B
signal? I'm thinking i
I've seen units that do the switch electronically. If there's
energy at the external input, the internal source is switched off.
Bill Hawkins
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Mitchell Janoff
Sent: Sunday, March 18, 2007 3:51 P
Follow the money. Every piece of DRMO equipment sold is a
piece of equipment that wasn't bought commercially. With
companies being merged and acquired, wealth concentrates
to where buying congresscritters doesn't show on the bottom
line.
IMHO.
Bill Hawkins
-Original Message
Thanks, Rex
It looks like the IntelliAdmin site patch fixes the whole TZ table,
while MS tzedit fixes one zone at a time. That looks like a good
site for many other admin problems.
Bill Hawkins
-Original Message-
Rex said:
In a discussion on another forum, someone posted this link
Perfect! Many thanks, Jason.
Bill Hawkins
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Jason Rabel
Sent: Wednesday, March 07, 2007 1:08 PM
To: 'Discussion of precise time and frequency measurement'
Subject: Re: [time-nuts] Is there a DST
Timely friends,
Microsoft does not have support for Windows 98 SE for the DST change.
That is the OS for my machine that talks to the HP Z3801 receivers.
Is there a remedy that does not involve installing XP Home? or Unix?
Bill Hawkins
___
time
ical manual (TM) number
for it, you can try public access to LOGSA Electronic TMs.
The R-390 list on QTH has used this as a resource for a long
time. Not all of it is public, though.
Bill Hawkins
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t WWV.
That proved to be a bridge too far. Didn't get around to selling
them as clocks, either. You need an accurate oscillator and
immortal power, for starters. Simpler ways exist now.
Bill Hawkins
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Google found a 27M4B1 SGS 93 2250 at electrospec.com.
Sadly, electrospec has no specs, just an RFQ form.
Bill Hawkins
-Original Message-
[EMAIL PROTECTED] asked,
So to the question, has any one ever come across a device
marking of 27M4Bl or possibly a bad i(I) not an L(l
Have we settled the question of whether or not the RB can
be dominated (no, that's not it) disciplined by an external
1 PPS or 10 MHz signal?
If it can, I'd load up on Rb units and discipline them with
a modern GPS receiver - or maybe replace the OXCO in Z3801s.
Bill Hawkins
Z3801s do
Have you investigated the concept of an attenuator, to use
before the RF gain block?
Bill Hawkins
-Original Message-
Stephan Sandenbergh wrote,
"The easiest, of course, would be if there exists some integrated
solution. I browsed through the list of RF gain blocks on the
Mini-Cir
n
that equation? By dimensional analysis, G must be conductance, so we
have Ohms^2 under the root, and the answer is in Ohms.
So, what is R the resistance of, and what has conductance G?
Bill Hawkins
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https
. That's a real good reason
not to get carried away.
Bill Hawkins
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of John Ackermann N8UR
Sent: Sunday, January 28, 2007 6:58 PM
To: Discussion of precise time and frequency measurement
Subject: [time-nuts
Well, now that China has shot down one of its old satellites at
500 miles, the GPS navigation system is vulnerable.
Invulnerability is only temporary.
Bill Hawkins
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Rob Kimberley
Sent: Friday, January 19
t what
AC input voltage is required from the OXCO to the board. 0.4 volts
sounds really low. What's all this about resistors? You can't achieve
lock if the board has no input from the OXCO. Are you sure the GPS input
is OK?
Did that help?
Bill Hawkins
-Original Message-
From:
ity with a plumb bob. Satellites
need to be aligned with the physical center of the Earth, for
some reason.
See http://en.wikipedia.org/wiki/Prime_Meridian
and http://en.wikipedia.org/wiki/International_Atomic_Time
Regards,
Bill Hawkins
___
time-nuts ma
If I did the math right, a 360 phase rotation will take 2000 seconds.
This means the LPRO is about 5x10E-11 off from GPS, no?
What is the protocol for the data at J6? Can it be the same as the
Z3801?
Bill Hawkins
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time-nuts
for the data at J6? Can it be the same as the
Z3801?
Bill Hawkins
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So, if we have two sources of 15 MHz in a CDMA minicell, each with
its own SMA connector, what module receives those two sources and
decides which one to use?
Why use XO and Rb when either could be made redundant for extended
reliability? (not the British sense of "made redundant")
Bi
Arrgh! Make that TWO 12.5 volt batteries.
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Bill Hawkins
Sent: Sunday, December 31, 2006 1:15 AM
To: 'Discussion of precise time and frequency measurement'
Subject: Re: [time-nuts] New pics of RFTG
hat's the way it goes on the net. I may yet figure out how to
discipline the RB from the XO.
Anybody know how to divide by 2/3rds without a microprocessor? :-)
Happy New Year (no qualifications)
Bill Hawkins
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behal
ability of the crystal to age well?
Happy New Year, all. At least, may it start out with a
sustainable level of happiness. But if it doesn't, may
you have some good fortune before the Odometer of Time
clicks off another year, and we get to start over.
Regards,
Bill Hawkins
(Sorry to introd
heets of plywood, with
maybe 50 connectors. They were tested for continuity and isolation by a
test instrument made by DITMCO. The acronym was for the Drive-In Theater
Manufacturing Company.
Happy Holidays, as the dark days settle upon the Northern hemisphere.
Bill Ha
John,
Many thanks for posting the photos. Now I know that there are
no card edge connectors and no need to find a card rack. The
connectors are not all that difficult to trace. The arrow
pointing to +24 is a help.
What's all this about 15 MHz out?
Bill Hawkins
-Original Message-
rself.
Others are focused on something else and have no time for you.
Others do not find Lucent Rb cards interesting.
The cards are crap, but nobody wants to break the news to you.
There is no manual.
Welcome to the joys of e-mail.
Bill Hawkins
-Original Message-
From: [EMAIL PROT
Has anyone got one of these (part number KS24019 L105A) up and running?
Is a manual available?
Bill Hawkins
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Jason Rabel
Sent: Wednesday, December 20, 2006 10:58 AM
To: 'Discussion of precise tim
Yesterday, a coronal mass ejection from the sun was aimed
right at the Earth. There are lots of HF propagation
effects. Geosynch satellites could experience failures.
The major storm will end on the 16th.
Anybody notice anything in the time domain?
Bill Hawkins
Ah, yes, the C field. A change in magnetic field can change
the clock frequency. Parts in 1e-14 are exceedingly small.
Is it necessary to correct for the Earth's magnetic field
when the clock travels?
Bill Hawkins
Actually, that's a test that can be done at home with a
couple o
don't know Michelle and I only subscribe to
Harper's, for as long as I can remember (at 68, that is not
necessarily very long).
Rob Seaman is quoted extensively. Poul-Henning Kamp is not.
Perhaps she had no budget for overseas interviews.
Regards,
Bill Hawkins
_
Normand Martel VE2UM wrote,
"With Cesium, high end techniologies like fountains or beans
can be used"
Yes, I know it's a typo and I mean no harm to Normand, but it
gives new meaning to the term "bean counter". (Normally, a bean
counter is an accountant
Wow. There are some sophisticated tools to measure power
line frequency, indeed.
Many thanks for the report. Curious about what would cause
that kind of massive overload. Seems like several generating
plants just dropped off the grid.
Regards,
Bill Hawkins
-Original Message-
From
t it means that after you make a mistake in
buying something, don't spend more money trying to repair
it.)
Of course, the parts stripping may not have occurred at a
repair facility. The owner merely wanted meters and switches
for some unrelated project.
Regards,
Bill Hawkins
-Original Me
o error in angles, for instance. A clear field
of view, for another.
Regards,
Bill Hawkins
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Brooke Clarke
Sent: Sunday, November 05, 2006 1:29 PM
To: Tom Van Baak; Discussion of precise time and frequency m
Tom,
tf.nist.gov doesn't seem to exist.
Bill Hawkins
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Tom Van Baak
Sent: Saturday, November 04, 2006 7:21 PM
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] Re Cert
Ah, yes, I have one of those FAA tuning fork standards . Never
occurred to me to mount it in a three dimensional gimbal in order
to discipline it to GPS. Might wear out the mechanism, though,
as it attempts to track the ever-shifting GPS reception.
Regards,
Bill Hawkins
(My wife thinks I&#
If your 117A, listening to WWVB, draws straight lines
then something is wrong with it. You should see a change
between day and night.
Ah, unless you live near Fort Collins, CO.
Bill Hawkins
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of tom
Sent
I have one of those, too. No manual, of course.
Some TT GOES receivers, still in original boxes, had the
plastic bag slit and the manual removed, without removing
the receiver.
Bill Hawkins
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Majdi S
Please see their home page. W.J. Ford closed for business on Oct First.
There is a link to an auction outfit.
Bill Hawkins
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Poul-Henning Kamp
Sent: Sunday, October 29, 2006 12:50 PM
To: time-nuts@febo.com
n. Something about
anticipation, come on up to the lab, let's see what's on the slab ...
and so on.
Pardon me if it only has a little bit to do with precision time, but it's
that time of year.
Regards,
Bill Hawkins
--
No virus found in this outgoing message.
Checked by AVG Anti-
Check out http://www.deluoelectronics.com/customer/home.php
The stuff is designed to work with a laptop via USB or Bluetooth, under
$100.
I tried it several years ago and found it OK, but I seldom get lost.
Regards,
Bill Hawkins
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL
y off
topic for this list.
Regards,
Bill Hawkins
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at 0.1% of a US
billion dollars is a million dollars. They would like to be
accurate to the penny. Is this the "cheating at the scale"
problem that you mentioned?
Regards,
Bill Hawkins
Never attribute to malice what can adequately be explained by
the limitations of a three pound brain.
ot an oscillator whose
frequency is determined by physical properties, like a
piezoelectric crystal or a cloud of atoms. What you are
seeing in the power line frequency is a marvel of coordinated
control systems barely restraining enormous energies.
Since I'm in the control business, I think t
the delta time (integrated
frequency) for 24 hours.
Regards,
Bill Hawkins
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Roger Glover
Sent: Saturday, October 07, 2006 2:38 PM
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts
to say, but I hope someone finds it useful.
None of the above is guesswork. I've been interested in this
since a summer job on an island in 1955. I've not talked to a
dispatcher, but I have confirmed the details with a control
engineer at a large power station.
Regards,
Bill Hawkins
_
x27;s time to turn off the
air conditioner and run all those clock ovens on battery before
the under-frequency relays start cascading.
Of course, you need the precision version for comparison.
Does anybody in this group look at power line frequency drift?
Bill Ha
s feasible, where can I find a Maxwell clamp? Google
can't find one.
Regards,
Bill Hawkins
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Let's hope that news article doesn't turn out to be the
equivalent of AOL introducing their members to newsnet
in the early 90s. The leader of one fine science list
closed it down because there was so much new chatter
and no new knowledge.
Regards,
Bill Hawkins
P.S. How about usin
longer the path from the gnomon to the slit, the better.
Come back in a year and see what happened. Good science takes
time and lots of consistent readings from the apparatus.
Wish I hadn't sold my HP-113BR clocks. They had the differential
gearing to set seconds and time of day.
R
at I create
has been done with MS Word and Outlook. Can anyone recommend a
pretty good starter kit for this kind of work? I used Unix and
C twenty years ago. I do have precision frequency standards.
Regards,
Bill Hawkins
The scheme probably needs three photocells to be sure that the one
in the middle
imized the signal.
I understand that optical tracking of a star crossing a hair
is more precise than the peak of a radio signal, but perhaps
modern signal processing would fix that.
Or maybe you don't have as many cloudy days as we do.
Regards,
Bill Hawkins
-Original Message-
From: [
eet the project requirements.
I apologize for trying to apply rigorous methods to this incompletely
specified project. As Brooke says, we're here to have fun.
Regards,
Bill Hawkins
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Glenn
Sent: Wednesday, August
t.
Does this shed any light on the problem? Or are we blind men
wearing coarse gloves.
Regards,
Bill Hawkins
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8/27/06, Bill Hawkins wrote:
>Have a Spectracom 8163 WWVB receiver/comparator and recorder.
>
>Looked for WWVB Modulation and found a hit for the Code of Federal
>Regulations as 15 CFR 200.107 that covers WWV, WWVH, and WWVB. The text
>says it was updated on 1/1/2006, but it is
ip a whole cycle in an instant. Can see
the hourly 2.08 degree phase shifts as about 5% on the chart.
At 3 PM CDT, it slipped from 55% down to 12%, about one cycle.
Regards,
Bill Hawkins
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vintage time-nuts list? Ah, but if you're not pushing the
envelope, you're not a time nut.
Regards,
Bill Hawkins
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Um, what did you pay for a non-working physics package?
Regards,
Bill Hawkins
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Wait a second - are you saying that the compiler is
smart enough to account for the 'while' and the
'output_toggle' instructions to make the total
execution time for the loop be precisely 50 clock
ticks?
-Original Message-
From: Chuck Harris
If I wanted to divide a 10MHz clock down to 10
ative divider scheme, but
haven't gotten around to it. You triple the 1 MHz to 3,
triple again to 9, mix it with the 10 MHz input and
extract 1 MHz to be tripled, etc. Or use a ringing 9 MHz
tank hit with a 1 MHz pulse, which you can do when the
frequency comes from a standard.
Regards,
Bi
7;t be embarrassed.
Excuse my ignorance, but what is a "nice box" and what are
LPRO, UT+, TVB-DIV? A computer and programs I should know about?
Regards,
Bill Hawkins
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Glenn
Sent: Monday, July 31, 200
.
Dennis McCarthy of USNO said that the definition was too embedded
in the definition of physical standards to change. Besides, there
are more leaps back as the Earth slows down.
Just thought you'd like to know...
Bill Hawkins
___
time-nu
think there's no reason
for high-speed dividers to cause the kind of jumping
around that Magnus reported. For that, I'd bet on one or
more fractures in the crystal, caused by the rough handling
that surplus equipment experiences. To the former owner, it's
junk.
Regards,
Bill Hawkins
-
D 9.5/12.7.
EFC is AD .53/.76, SD 17.8/18.2. That's over 24 hours.
And that's my experience with Z3801 receivers.
Regards,
Bill Hawkins
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On
Behalf Of Greg Burnett
Sent: Monday, July 24, 2006 11:38 AM
To: Discu
things, especially since
post-modern science suggests that time doesn't exist. But then,
post-modern pushes the envelope beyond all reasonable dimensions.
No criticism intended - I have enjoyed and learned from your postings.
Regards,
Bill Hawkins
-Original Message-
From: [EMAIL PROT
t. I have not automated data collection yet.
Is this setup able to quantify atmospheric effects or are there
too many system errors?
Regards,
Bill Hawkins
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, withholding pleasure - cease physical contact until
she realizes that you are deadly serious about comparative time.
If you really can't afford anything but shipping costs, I may have
some things that you could use - as a beginner and not a dealer.
Can you repair circuit boards?
Regards,
I think you'll find that Natco was the National Radio Company,
makers of some fine communications receivers.
AFIK, there is no relationship to National Semiconductors.
Bill Hawkins
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
Behalf Of Dave Brown
Sent: Thu
e from the blasting machine, attenuated. The
stop circuit was normally closed by a pencil lead held
in alligator clips for quick replacement. The cap broke
the lead when it fired. For a while, it was used in
Pinewood Derby races. It has never been exposed to weather
and looks new inside.
Bill Hawki
on the frequency error and the rate at which the
PC requests an SNTP update. I've found the Mount Hay Tech
server to be able to keep a Win98 PC well within a second
with hourly updates. YMMV.
Regards,
Bill Hawkins
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time-nut
cesium inside. Cesium is flammable in water. Never mind that it is a
small quantity sealed in a welded steel tube. The seller had investigated
shipping and was deterred by the special handling required to ship
dangerous flammable materials.
Regards,
Bill Hawkins
-Original Message-
From
t is best to be there and refuse to accept the
shipment if the box is leaking peanuts. Some trust is required for payment.
Regards,
Bill Hawkins
P.S. Is 20 the right value for beam current, or is it half of normal?
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ng is difficult, make sure that the C field changes smoothly
with the adjustment. A milliammeter in the line to the coils will work.
You won't see the change with a compass if the mu-metal shielding is
working (true?). Ah, can you damage mu-metal by striking it?
Bill Hawkins
Twenty years ago,
ave the most money on Earth. Move on, if you
don't want to play their enormously destructive game.
Regards,
Bill Hawkins
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