That is some seriously looking piece of gear. What is the numerical 
keyboard for and how do you operate it?

On Wednesday, January 1, 2025 at 3:22:34 AM UTC Leroy Jones wrote:

> Put a toggle switch on the front of the clock.   Turn the tubes off when 
> you leave the room.
> Turn them on when you want to see them.   All of my nixie clocks have it.
>
> On Sunday, December 29, 2024 at 9:41:10 AM UTC-5 Terry S wrote:
>
>> I've used these motion sensors from Panasonic:
>>
>>  
>> https://mm.digikey.com/Volume0/opasdata/d220001/medias/docus/2240/EKMB_MC_AMN2_3_Rev_Sep_2012.pdf
>>
>> Super easy to use. Seems they've gotten a bit pricey since I used them 
>> last. The one I used is AMN31111.
>>
>> On Sunday, December 29, 2024 at 4:07:34 AM UTC-5 Christoph Brandstätter 
>> wrote:
>>
>>> Thank you both for your helpful insights! I really appreciate the 
>>> detailed advice.
>>>
>>> Regarding the motion sensor, I do see how it could be a great solution 
>>> to prolong the tubes' lifespan. However, I have two cats, and I’m concerned 
>>> they might trigger the sensor frequently, which would defeat the purpose. 
>>> That said, the clock will be placed inside a display case, so the cats 
>>> won’t have direct access to it.
>>>
>>> I’ll keep thinking about the motion sensor idea and see if I can make it 
>>> work despite the cats. Thanks again for sharing your experiences and 
>>> recommendations – they’ve been very helpful!
>>>
>>> Richard Scales schrieb am Sonntag, 29. Dezember 2024 um 06:45:46 UTC+1:
>>>
>>>> For my designs, a motion sensor (usually mounted remotely) is a must 
>>>> have for any design that uses expensive tubes so they are on only for a 
>>>> limited time. You wouldn't leave all the lights on in a room if you were 
>>>> not using it would you ?
>>>> I have used PIR modules as well as microwave sensors. PIR I usually 
>>>> mount remotely and plug in with a cable - a microwave type sensor can 
>>>> easily be built in to the housing of a lot of clocks.
>>>> For PIR I have used HC-SR501 and HC-SR505. For microwave sensors I have 
>>>> used several including RCWL0516. The microwave sensors are more sensitive 
>>>> and can 'see through walls'!
>>>> - Richard
>>>>
>>>>
>>>> On Saturday, 28 December 2024 at 19:15:39 UTC Senk Ju wrote:
>>>>
>>>>> I have had an IN-14 clock running 16h/day for around five years and 
>>>>> the tubes still look as good as the day I got them. I also know people 
>>>>> who 
>>>>> have had their IN-14 clocks running for decades without any noticeable 
>>>>> degradation of the tubes. It’s generally advised to drive Nixie tubes at 
>>>>> their rated current, as running them at too low a current can increase 
>>>>> the 
>>>>> risk of cathode poisoning. If you’re multiplexing the tubes, keep in mind 
>>>>> they’ll need higher currents to achieve the same brightness since each 
>>>>> tube 
>>>>> is only illuminated for a fraction of the time (e.g., 1/6 if six tubes 
>>>>> are 
>>>>> multiplexed). For a clock, however, dimmer tubes might actually be 
>>>>> desirable. Whether multiplexing is good or bad for the tubes seems to be 
>>>>> a 
>>>>> topic of debate. I don't think you have to worry about it damaging the 
>>>>> tubes. If you are concerned with longevity, I would instead recommend 
>>>>> turning off the tubes at night. 
>>>>>
>>>>>
>>>>>
>>>>> Christoph Brandstätter schrieb am Samstag, 28. Dezember 2024 um 
>>>>> 19:39:53 UTC+1:
>>>>>
>>>>>> Hi everyone,
>>>>>>
>>>>>> I recently acquired six IN-14 Nixie tubes and plan to build a clock 
>>>>>> with them. Ideally, I’d love to keep the clock running 24/7, but I’m 
>>>>>> concerned about how this might affect their lifespan. I’m aware of 
>>>>>> issues 
>>>>>> like cathode poisoning, so I know it's important to regularly cycle 
>>>>>> through 
>>>>>> all digits to prevent buildup. However, I’d like to know if there are 
>>>>>> other 
>>>>>> best practices or tips to ensure they last as long as possible.
>>>>>>
>>>>>> Here are some specific questions I have:
>>>>>>
>>>>>> 1. Lifespan in Continuous Operation: I know that running Nixie tubes 
>>>>>> 24/7 reduces their lifespan, but does anyone have experience with how 
>>>>>> long 
>>>>>> they actually last under continuous use?
>>>>>>
>>>>>>
>>>>>> 2. Lower Current: Does running the tubes at a lower current 
>>>>>> significantly extend their life? What current settings have worked well 
>>>>>> for 
>>>>>> others?
>>>>>>
>>>>>>
>>>>>> 3. Multiplexing: Is multiplexing a good approach for improving 
>>>>>> lifespan, or is it better avoided?
>>>>>>
>>>>>>
>>>>>> 4. Presence Sensors: I've seen people use presence sensors to only 
>>>>>> light up the tubes when someone is nearby. If anyone has implemented 
>>>>>> this, 
>>>>>> what hardware or sensor type do you recommend?
>>>>>>
>>>>>>
>>>>>>
>>>>>> I’d also appreciate any other tips or experiences you might have 
>>>>>> regarding maintaining the longevity of Nixie tubes.
>>>>>>
>>>>>> Looking forward to learning from you all!
>>>>>>
>>>>>

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