I am not aware of the history, usage or storage conditions of these tubes, but picture two makes me worry. If you look in picture two the leads show signs of iron oxides, rust. Dekatron picked up on this. As you know Dumet glass-to-metal seals have an iron-based core, surrounded by copper. It seems the outer copper has been stripped off (many insertions?, bad storage?). With the copper removed the rust propagates up into the tube and usually causes a leak. Many nixie tubes, even new ones experience that; they look fine but they don't work. I mean, have a look at Jens Boos page (linked in the auction) to see how good pins look like.
The poster of the auction knows about NOS, knows what the original package is and that they are rare. That combined with the 'as is' and 'not returnable' settings of the auction are suspicious and make me very worried. Regards, Alex On Thursday, March 28, 2013 12:39:01 PM UTC, Dekatron42 wrote: > > Found this auction just now: > http://cgi.ebay.de/ws/eBayISAPI.dll?ViewItem&item=151019081604&fromMakeTrack=true&ssPageName=VIP:watchlink:top:de > > The pins look a Little rusty though..... > > I have no Connection with the seller and so on..... > > /Martin > -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send an email to [email protected]. To view this discussion on the web, visit https://groups.google.com/d/msg/neonixie-l/-/K2CEKfTLOMAJ. For more options, visit https://groups.google.com/groups/opt_out.
