Somewhat related fact: here in czech republic nobody uses the term nixie tube, we call them just *digitron*. Also VFD tubes are reffered as* itron*.
On Friday, 14 September 2012 21:21:56 UTC+1, Jon wrote: > > Great question Jens! > > From my research on Ericsson (admittedly dekatron-oriented), I have not > come across another early patent which is obviously directed to cold > cathode indicating tubes other than the one which describes the GR10A > register tube. Later on around 1960 they filed some patents mentioning > nixie tubes, but as I remember those were really associated with the > invention of the auxiliary anode dekatrons. > > Looking across the material that I have, I do not believe that Ericsson > had a major research effort in cold cathode display tubes - they were > concentrating on dekatrons and applications for them. Although the patent > discussed earlier in the thread was filed in 1950, there was definitely no > display tube in their product range in the early 1950s, so I > suspect Ericsson did not commercialise a nixie until the second half of the > 1950s at the earliest. Consistent with this, Tim Laing's VX9110 prototype > carries a date code which seems to be from 1956. I also have some Ericsson > literature from 1965 which describes the Digitron (their brand name for > nixies) and says that it is the product of "some five years' development", > which would again point to them not really getting serious about nixies > until the end of the 1950s. > > Perhaps we can complement the patent info by looking at the date codes on > Ericsson nixies in peoples' collections? The Ericsson date code is made up > of two capital letters (eg. NL, RF, WG) which is normally printed > underneath the model number. Does anyone have an Ericsson nixie with a code > beginning with a letter earlier in the alphabet than S (1960) ? > > Jon. > > > > > On Friday, September 14, 2012 10:42:55 AM UTC+1, Jens Boos wrote: > >> Hi Martin, >> >> thanks for the link, I know this article. I also had contact to an >> engineer working at the Haydu facilities in 1954 shortly after he merger. >> The Burroughs and Haydu Brothers story seems fairly clear to me. >> >> The question remaining (and originally intended to be asked) is: what is >> the role of Ericsson? When did the first start to develop indicating >> devices? Based on which patents? >> >> Jens >> >> >> > -- 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]. To view this discussion on the web, visit https://groups.google.com/d/msg/neonixie-l/-/D4kgEy3vMiwJ. For more options, visit https://groups.google.com/groups/opt_out.
