Those ZM1000's were made in a year ending in 6 and/or 7 according to the date code. I'm guessing 1976/77.
On Tuesday, March 14, 2017 at 5:59:46 PM UTC+1, David Speck wrote: > > They are labeled as 3H, for tritium, so they would have a 12 year half > life. Any idea how old they are? > > Dave > > On 3/14/2017 12:03 PM, franetic wrote: > > Just as a curiosity, I have (I had) some boxed ZM1000 nixies branded by > RTC (France). See attached photos. The box has a label warning about > radioactivity! It probably presents no real danger even if the tube gets > broken. (Unless you break a large quantity of those and make sure you > inhale the gas.) Note that these are no different that your regular > ZM1000's, they were made at the Philips Heerlen factory. (As was every > ZM1000 I have had handled.) > > > -- 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/msgid/neonixie-l/101b5a3b-f97f-4f2e-ac47-bd7367c1ca2f%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
