On Mar 1, 8:00 pm, Cobra007 <[email protected]> wrote: > The other ones were NOS if I am not mistaken, but I think these ones > are used. He said they are not soldered but that is probably because > they sit in a socket :-).
Despite what is listed by sellers, I have never seen a truly NOS B7971. As they are run, the background areas around the elements become lighter. Compare the left (less hours) and right (more hours) tubes in this picture: http://goo.gl/46gpd The closest I've ever come to a NOS B7971 was a set that were sold in the factory styrofoam packaging, but they were still pulls. The original datasheet (of which I have several) claims a service life of 50,000 hours. That's at the current they were run at in the original LECTRASCAN application - they'd likely last a good while longer in a clock or other modern display that wasn't being run at full brightness in an office (sometimes even facing the street through a window!). -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To post to this group, send an email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/neonixie-l?hl=en-GB.
