Tungsram = Tungsten + Wolfsram (article on Tungsram company)

NOS, modern, dating and identifying.

Tungsram = Tungsten + Wolfsram (article on Tungsram company)

Postby dai h. » Mon Aug 11, 2008 7:45 am

article seen here:

http://www.jacmusic.com/html/articles/a ... rview.html

but apparently originally from here:

http://www.tungsram.hu/tungsram/english/index.html

anyway a bit of trivia and a little history about the Tungsram company in Hungary
dai h.
 
Posts: 716
Joined: Sat Jun 07, 2008 9:38 pm

Advertisement

Banner ads are available for $25 a month. PM or Email me at Info@wallaceamps.com for more details.

Re: Tungsram = Tungsten + Wolfsram (article on Tungsram company)

Postby dai h. » Sun Sep 07, 2008 6:52 pm

nicer (bigger) version of the poster in the article:

http://bp0.blogger.com/_Abe7lpSRG_4/Rxt ... ngsram.jpg
dai h.
 
Posts: 716
Joined: Sat Jun 07, 2008 9:38 pm

Re: Tungsram = Tungsten + Wolfsram (article on Tungsram company)

Postby Jeff West » Mon Sep 08, 2008 9:00 pm

Would be good to find more about the British arm too, actual history is a little obscure and I think that was deliberate from when they were trying to get into BVA.
Jeff West
 
Posts: 65
Joined: Fri Jun 13, 2008 12:19 am


Re: Tungsram = Tungsten + Wolfsram (article on Tungsram company)

Postby dai h. » Wed Sep 10, 2008 5:18 am

Jeff,

here is a bit of a discussion I remembered seeing on 18watt.com. I don't have any familiarity with the subject to say if this is accurate or not.

dotfret
Frequent poster
Frequent poster


Joined: Sep 29, 2004
Posts: 638
Location: East Yorkshire

PostPosted: Thu Nov 23, 2006 10:34 am Post subject: Reply with quote
When it comes to marks of origin on valves, it was and is definitely illegal
to sell them in US marked with an incorrect origin. In GB the designation "Foreign" was an alternative to actually stating the country of origin. "GB", "UK" or "Empire" made were for British goods - this system was actually obsolete in the 30s, but was carried on for a long time. I have actually seen valves marked Foreign that were made in France by one company, transported to England for labelling, then sent back to France for sale by the label company!

Here is the short history that I have researched. It may not be entirely accurate, but it is the best I can find -

British Tungsram was founded as a subsidiary of the Hungarian company in 1933. They did not join the British Valve Manufacturers Association (BVA), and were selling replacement valves exclusively to the trade market through (British) Siemens. When WWII started in 1939, the Tottenham plant was not a full manufacturing facility, but was assembling Hungarian made components into valves (Philips Australia used to work this way, too). By the end of the war it had become a full-blown manufacturing facility because of the demands of wartime production. In 1952 Philips acquired the business, and installed management from Mullard, but the Tungsram sales were still tied into Siemens. By 1956 the Siemens valve business had been sold into the AEI group, who were working under the manufacturing name of Siemens Edison Swan and marketing their valves both as Ediswan and English Mazda - they did not want to sell the competition's valves, although under the trading agreements they were obliged to do so. Philips could not expand the business, presumably because of the trading agreements with Siemens, so in April 1956 they closed the Tottenham Tungsram factory and supplied the Tungsram demands with Mullard stock. After a decent interval, to let the trade agreements die, the factory was re-opened as a Philips/Mullard subsidiary, then fell victim to the transistor. But somewhere along the line there was another door, and England was still being supplied with Hungarian valves in red and yellow boxes!

And it is not just true of Tungsram that the best came at the end- the best
Mullards were 70s production, if you look at signal/noise (M8137!) and the best from Telefunken and Brimar came right at the end of production (Telefunken EF806S and Brimar ECC807, as examples).

That is the best I can do...

Last edited by dotfret on Sun Nov 26, 2006 2:52 pm, edited 1 time in total


(fwiw 18watt.com requires membership to view the forum threads)

http://18watt.com/modules.php?name=Foru ... c&p=131570

The ebay tube looks interesting. Looks like a 6L6G. Not made by GEC?
dai h.
 
Posts: 716
Joined: Sat Jun 07, 2008 9:38 pm

Re: Tungsram = Tungsten + Wolfsram (article on Tungsram company)

Postby Jeff West » Wed Sep 10, 2008 10:09 pm

Thanks, Dai. That looks highly consistent with some other sources, if not drawn from them. Like:

http://www.competition-commission.org.uk/rep_pub/reports/1950_1959/fulltext/020c13.pdf

http://www.competition-commission.org.uk/rep_pub/reports/1950_1959/fulltext/020c02.pdf

Those CV1075s are from Tottenham production, per the "KB/T". Couldn't say if they contain any parts actually from Hungary!

Can't say I really share the sentiment that the best British valves were usually the last made, although it would be fine with me if everyone started preferentially seeking '70s pieces.
Jeff West
 
Posts: 65
Joined: Fri Jun 13, 2008 12:19 am


Return to Tubes

Who is online

Users browsing this forum: Google [Bot] and 1 guest


cron