[neonixie-l] Re: IN 9 / IN 13 bar graph tubes clock

2013-07-30 Thread AlexTsekenis
Minor correction to previous post: 2% not 0.02 %. That would have been quite a miracle. Alex. On Tuesday, July 30, 2013 1:11:35 PM UTC+1, AlexTsekenis wrote: Hi kay, We have been able to achieve a precision of 1.5mm - 2mm (depending on how you define the boundary of the glow) with the

[neonixie-l] Re: Nixie Speedometer.... in EE Times

2013-07-30 Thread Mark Moulding
Looks like a very nice build! If you decide to try again, you might consider using Numitron tubes - their vibration tolerance is pretty amazing. RCA, for example, quotes lifetimes of 100,000 hours while operating at 50G impact and 2.5G continuous vibration (100G non-operating shock rating).