[Elecraft] OT: Nixie clock

[Lynn W. Taylor, WB6UUT]

I apologize for my tone, I meant for that post to be off-list.

I understand that "this clock" keeps time by counting 60 Hz, and I have 
heard that the power company works pretty hard to count cycles and tweak 
a little to keep clocks accurate.

Many of the NIXIE kits I've seen offered on eBay have a GPS input for 
those who don't like setting clocks.

In most of the world, 60 Hz more than good enough.  It certainly is if 
you want accurate time to the second, and don't mind going to a little 
trouble to set to an accurate source, like WWV.

I like clocks that set themselves.  I was simply stating that those 
exist if someone wants a retro-technology clock with some new-tech features.

-- Lynn

On 12/27/2013 6:18 PM, Walter Underwood wrote:
> Phil asked about "this clock", and since there is only one clock on that site which is a kit, I am pretty sure that we're discussing the clock built from this manual. Please read it before deciding how it keeps time.
>
> http://www.tubeclock.com/manual.pdf
>
> If there are other Nixie clock kits, please share the information on those. A nice gallery of built Nixie clocks is here:
>
> http://www.electricstuff.co.uk/nixiegallery.html
>
> wunder
> K6WRU
>
> On Dec 27, 2013, at 6:02 PM, "Lynn W. Taylor, WB6UUT" <KX3 at ColdRocksHotBrooms.com> wrote:
>
>> There is a difference between "some" and "this."
>>
>> All of the clocks here get their time via some network, or from the GPS constellation.
>>
>> On 12/27/2013 5:47 PM, Walter Underwood wrote:
>>> According to the assembly manual, it uses the power line 60Hz as a frequency reference. Last I heard, the utilities actually manage the frequency so the long-term average is very close to 60Hz.
>>>
>>> If you want real-time data on power line frequency, check out the FNET measurement network. It looks like my grid is currently at 59.990.
>>>
>>> http://fnetpublic.utk.edu/
>>>
>>> wunder
>>>
>>> On Dec 27, 2013, at 5:38 PM, "Lynn W. Taylor, WB6UUT" <KX3 at ColdRocksHotBrooms.com> wrote:
>>>
>>>> Some NIXIE clocks use GPS for time, which is good enough for most purposes.  :-)
>>>>
>>>> On 12/27/2013 3:57 PM, Phil Kane wrote:
>>>>> Don't mean to reopen the topic, but what is the accuracy of this clock?
>>>
>>>
>
>
>
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