Whoah, those tubes are absolutely awesome! Do you have any other interesting tubes on your site that are unlistet?
On Tuesday, 11 September 2012 23:44:24 UTC+1, Jon wrote: > > Jens, > > I guess the purist might argue this is not a classic nixie, but more the > precursor of the B7971. But, let's forget that - it's a nice piece of > detective work! > > Of course you do actually have pictures of these tubes on your website > already! Doesn't this patent describe a very similar tube to the Ericsson > tube that Tim Laing found on eBay in January last year and kindly shared > some pictures? It had the development code VX9110 and you kindly hosted > some pictures for him. Links to the pictures and discussion below. > > https://groups.google.com/d/topic/neonixie-l/R_9Zz6S-ZUM/discussion > http://www.jb-electronics.de/tmp/vx9110/ > > > This patent nicely brings together the nixie and dekatron histories, in > that the three inventors here from the Tube Design Group at Ericsson were > also instrumental in the development of the dekatron. Acton invented the > classic ETL two guide dekatron design, though it was first published as a > scientific paper in 1950 by Bacon & Pollard and Acton was only acknowledged > rather than being a co-author. The final inventor on the patent you found > (Williams) was the inventor of the GC10/2P miniature counter tube. It was a > remarkable period of innovation in that lab. > > Cheers, > > Jon. > > On Tuesday, September 11, 2012 9:02:16 PM UTC+1, Jens Boos wrote: > >> Hi folks, >> >> as some of you may know, besides Nixie tube collecting I am also >> interested in the history. I am writing an article, and every now and >> then I stumble upon something that makes me believe that I will most >> likely never finish it ;-) >> >> Here is the confirmed US Nixie tube history: National Union was the >> first to sell a readout tube product line (1954), although Northrop >> aircraft filed promising patents as early as Nov 1950; however, these >> tubes were never manufactured by Northrop (not a single one of these >> tubes has been found as of today). National Union was closely followed >> by Burroughs in 1955 who then offered their "Nixie" tube. But National >> Union beat Burroughs by the nose. >> >> Anyway, I was doing some casual research for patents filed by Ericsson, >> and found patent "GB739041", file is attached. The funny thing is, this >> baby was filed May 9, 1950, predating the first Northrop patent >> (US2618697) by more than half a year. The word "improvements" in the >> patent title suggests that this patent bases on other concepts already >> around at the time, but I cannot find out which patents it refers to. >> Any ideas? >> >> The most interesting thing is that Ericsson was probably the first >> company that commercialised the idea of a Nixie tube (and thus thought >> it worth to be patent-protected, that is the logic here). >> >> I feel that the European history of the Nixie tube needs further >> research. Has anyone been able to piece together the European side of >> the story? >> >> To be honest, I don't know if this patent is an entirely new discovery, >> but I could not find it on Randall's page: >> http://www.scientificsolutions.ca/patents.htm >> >> 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/-/HURDJfE-DDsJ. For more options, visit https://groups.google.com/groups/opt_out.
