Yes - to clarify he was a bona fide member of neonixie-l (don't think he is 
any more) and I too have bought from him in the past - he seems to be a 
straight guy.

When tubes are lit after a while in storage they often behave slightly 
differently until "burnt in" - could be just that effect.

The "clean" tubes I was referring to about from RIchardson - NL 5440As - 
have no markings at all - they're the ones that would have been "white 
labelled".

The interesting thing about 7971s is that not that many were made (anyone 
got actual numbers, or is that also here-say?) yet there are many variants, 
all of which appear to be totally reliable/built like tanks - why mess with 
something that obviously works so well>

Has anyone ever had one fail in operation (assuming it was being run within 
spec)?

Nick 

On Tuesday, 28 May 2013 02:07:27 UTC+1, Jeff Thomas wrote:
>
> The seller of these tubes is Patrick, and was a member of the old yahoo 
> neonixie-L (user=arcpat1 from as early as '04), although I don't know if 
> he's posted to the replacement google list.
>
> Yeah, IMHO these B7971's are just washed-and-recycled tubes in the stock 
> styro carrier. It really does not matter as long as they're sold with a 
> guarantee of all segments being functional.
> $175 is certainly a lofty goal for as-is. He may sell some if others 
> squatting on tubes don't jump at the opportunity to undercut his pricing.
>
> Regards, Jeff
>
>
>
>
>

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