I don't know of one, but you could start with any 7-segment VFD clock kit. 
These tubes have grids, so they can be multiplexed. That's why my idea for 
a giant IV-26 clock never went anywhere - no control grids, so you need a 
driver output for every dot.

You'll probably need to tweak (or buffer) the clock's segment and grid 
drivers, and you'll likely need an AC filament supply (these tubes are so 
big that there's an obvious brightness gradient when using a DC filament 
supply).

On Friday, February 28, 2025 at 1:09:57 AM UTC-5 Michail Wilson wrote:

> Terry, 
>
> Do you know if a kit yet exists for those?
>
> M1
> Sent from Space
>
> On Feb 27, 2025, at 7:17 PM, Terry Kennedy <[email protected]> wrote:
>
> If you're willing to settle for a VFD, the ILC1 1/7 is about the size of 
> a soda can:
>
>
>
> On Wednesday, February 26, 2025 at 11:57:04 AM UTC-5 gregebert wrote:
>
>> OK, so we all know size matters when it comes to all things nixie. Are 
>> there panaplex displays even larger than the SP431 ?
>>
>> On Tuesday, February 25, 2025 at 9:22:54 PM UTC-8 Richard Scales wrote:
>>
>>> As some of you may know - I just love Panaplex displays - though I now 
>>> know exactly how much I love them, the answer being - not enough to sell 
>>> yet another kidney to buy that thing :-( 
>>>
>>> @zy, if you ever decide to part with the one you have then I'd love to 
>>> have a go with it - but as suggested above - I'm all out of organs to sell !
>>>
>>> - Richard
>>>
>>>
>>> On Wednesday, 26 February 2025 at 00:57:20 UTC gregebert wrote:
>>>
>>>> 2-inch tall numerals, which is pretty big. For that price I'd stay with 
>>>> b7971, though.
>>>>
>>>> On Tuesday, February 25, 2025 at 4:01:43 PM UTC-8 Nick Andrews wrote:
>>>>
>>>>> Haha, that figures for Houston doinks.
>>>>>
>>>>> On Tue, Feb 25, 2025 at 10:46 AM Nicholas Stock <[email protected]> 
>>>>> wrote:
>>>>>
>>>>>> https://www.ebay.com/itm/226161298750
>>>>>>
>>>>>> This contains two of the largest Panaplex displays that were made 
>>>>>> (SP431). Not my auction etc, and the price is *aspirational*... but 
>>>>>> hey!
>>>>>>
>>>>>> Cheers,
>>>>>>
>>>>>> Nick
>>>>>>
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>>>>>>  
>>>>>> <https://groups.google.com/d/msgid/neonixie-l/CAOX%2BRHLu-K7KJ3gNEsvweTy0A3HqOVJqCD4bY6txMZ9HNxRCdw%40mail.gmail.com?utm_medium=email&utm_source=footer>
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>>>>>>
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