Yes, this is not a spring powered clock with gears.
The pendulum will be impulsed every N swings by a small weight. (Not yet sure
what N will be.)
Scott
On Thursday, March 23, 2017 11:34:44 AM EDT paul swed wrote:
> Hello to the group quite late to the discussion. Pretty interesting.
> But I a
https://www.febo.com/pipermail/time-nuts/2017-March/104374.html
The patent that I posted at
http://gonascent.com/papers/hp/US3323008.pdf has many interesting
facts about the cesium beam tube. It says that the temperature of the
cesium oven is 65° C. I researched the vapor pressure of cesium at
v
Hello to the group quite late to the discussion. Pretty interesting.
But I assume the drive for the pendulum is some impulse. Not the old
mechanical clock with a spring for power.
Regards
Paul
WB8TSL
On Wed, Mar 22, 2017 at 7:48 PM, David Scott Coburn
wrote:
> I will not be using an off-the-shel
On Thu, March 23, 2017 9:36 am, Nick Sayer via time-nuts wrote:
> The splitters Iâm using do have a 200Ω load on them. I know this
> because PA6H modules recognize an external antenna and use it.
I may have been thinking of a different receiver, according to the
Thunderbolt manual I just checke
Things to be careful about!
"I think the final vacuum improvement can be achieved more
quickly if the cesium oven is on."
The outgassing in a tube that has been off for an extended time
is almost all from the oven filaments and the ionizer filament.
The metal surfaces are virtual "sponges" and g
This has been a great conversation as I have tinkered with classical
filters forever.
But the fact is with micros so cheap the flexibility they add to the loop
filtering is quite nice. Essentially droop-less filters with silly time
constants and then other math on the data. That may or may-not impr
Not mentioning that the clock traveled in a passenger seat (even with
the seat belt fastened). The vision of a big box with cables and a good
sized clock ticking (it was a Patek Philippe movement in early HP
Cesiums) frightened some passengers and the person accompanying the
clock had to give
For anyone interested in an introductory class on phase noise, I'm
teaching an online class with live instruction (with video recordings in
case you miss a class) titled "Phase Noise Fundamentals."
https://www.jitterlabs.com/support/training
Register with the coupon code TIMENUTS1704 to receive 1
The splitters I’m using do have a 200Ω load on them. I know this because PA6H
modules recognize an external antenna and use it.
> On Mar 22, 2017, at 3:20 PM, Chris Caudle wrote:
>
> On Wed, March 22, 2017 3:52 pm, Nick Sayer via time-nuts wrote:
>> My thunderbolt *insists* on being on the DC P
They may be missing out on coding efficiency but they sure are not missing
out on a really nice looking project.
My projects never look like that. I don't have a clue to that quality of
workmanship.
Though today I think its much easier then it used to be.
Regards
Paul
WB8TSL
On Thu, Mar 23, 2017 a
Hi
Back before GPS and similar systems, hauling Cs standards on commercial
aircraft was
a bit more common than it is today. One of the critical tricks of the trade was
knowing where
each power outlet was on a specific plane and how close it was to this or that
seat. The next
trick was knowing h
In message <20170323041013.ga4...@panix.com>, Ron Bean writes:
>http://hackaday.com/2017/03/22/well-engineered-radio-clock-aces-form-and-function/
>
>https://create.arduino.cc/projecthub/edr1924/dcf77-analyzer-clock-v2-0-c25404
He/They are missing out on a very big S/N improvement for DC
Hi,
On Wed, Mar 22, 2017 at 05:20:31PM -0500, Chris Caudle wrote:
> On Wed, March 22, 2017 3:52 pm, Nick Sayer via time-nuts wrote:
> > My thunderbolt *insists* on being on the DC Pass port. If you put it on a
> > DC Block port (yes, something *else* is on the DC pass port and supplying
> > DC for
http://hackaday.com/2017/03/22/well-engineered-radio-clock-aces-form-and-function/
https://create.arduino.cc/projecthub/edr1924/dcf77-analyzer-clock-v2-0-c25404
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