Thanks Martin!  I went through my box of nixies looking for B-5092's and 
looks like that I answered my own question.   No 5092s but I did have some 
QS30-1.  Turns out the number was illegible on the one that I pulled.  I 
was reading the wrong number.  These are QS30-1 which I believe can be 
swapped with Z560M, ZM1020 or SZ-8.  Thanks again for the help.

On Sunday, January 5, 2020 at 7:54:03 PM UTC-6, martin martin wrote:
>
> Welcome Alvin!
> Those should be the same pin out as the Burroughs B-5092
> http://www.swissnixie.com/tubes/B5092ABURROUGHS/ 
>
> They will be almost 0.75" and bright!
>
> martin 
>
>
>
>
> ~
> *[email protected] <javascript:>*
>
>
> On Sun, Jan 5, 2020 at 5:12 PM Alvin <[email protected] <javascript:>> 
> wrote:
>
>> Back in 2102, Lamptron made a fan controller for a PC case.  They were 
>> notorious for burning out quickly.  I'm looking for an ID on these nixies 
>> and if possible, a datasheet.  The end goal is hopefully a drop-in 
>> replacement.  Any help is appreciated.
>>
>> From the brand ID, I'm assuming that they're Zhishiguan but can't find 
>> anything online about the model.  I believe it reads 87 IV.  The diameter 
>> is a little over 29mm and the height is 28.7mm (32.75mm with pins)
>>
>> [image: i-45N9zH8-L[1].jpg]
>>
>> [image: i-pMjG65H-M[1].jpg]
>>
>> [image: i-xp2gp9C-L[1].jpg]
>>
>> [image: i-KjNrW34-M[1].jpg]
>>
>> <https://groups.google.com/d/msg/neonixie-l/dyt8EryCZb4/Vq6t5pQ5V9AJ>
>> Neonixie post from 2012 
>> <https://groups.google.com/d/msg/neonixie-l/dyt8EryCZb4/Vq6t5pQ5V9AJ>
>>
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>>
>

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