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
Hi Jens,
You can find some material on the Burroughs - Haydu Brothers here:
http://www.radiomuseum.org/forum/nixie_and_trochotron_haydu_vs_burroughs.html there
is also other information written on the Trochotrons and Nixies there,
*Emilio Ciardiello *has more information on this and you can try to
contact him and ask him directly. I've emailed him previously about
Trochotrons and gotten very good help from him.
/Martin
On Friday, September 14, 2012 10:48:11 AM UTC+2, Jens Boos wrote:
Hi Ira,
> What do you know of Haydu Bros. and their readout tubes, in the
early
> 1950's??
Burroughs launched their Nixie tube campaign as early as 1955, maybe
earlier, but that's not for sure. I am in contact with an old
newspaper
archive at the moment, hoping to resolve that issue once and for all.
Haydu Brothers and "their" readout tubes is very misleading. They did
NOT develop the Nixie tube. Before being purchased by Burroughs they
were not involved in the field; it all started in 1954 when Burroughs
purchased Haydu Brothers solely for their vacuum tube making
equipment.
The idea of the Nixie tube has been around much longer, the early
1950s
as can be seen by the patents we have collected. The key person is
Saul
Kuchinsky who once worked at National Union and then later went to
Burroughs (in 1954). He must have brought a lot of expertise with
him.
> Burroughs bought them out in about 1956 if I recall correctly.
Almost, they started advertising in 1955 as you can see here:
http://www.jb-electronics.de/html/elektronik/nixies/n_hb106.htm?lang=en
<http://www.jb-electronics.de/html/elektronik/nixies/n_hb106.htm?lang=en>
Perhaps you refer to the "Nixie" trademark claim which was from 1956.
Jens
> Ira.
>
>
>
> On 9/11/2012 1:02 PM, jb-electronics 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
<http://www.scientificsolutions.ca/patents.htm>
>>
>> Jens
>>
>
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