radiomuseum.org
Please click your language flag. Bitte Sprachflagge klicken.

Ultron, where?

Moderators:
Jürgen Stichling Ernst Erb Vincent de Franco Bernhard Nagel Mark Hippenstiel Eilert Menke 
 
Please click the blue info button to read more about this page.
Forum » Manufacturer's / brands history » MANUFACTURERS and TRADE NAMES (present in the museum) » Ultron, where?
           
Peter den Boer
Peter den Boer
 
NL  Articles: 38
Schem.: 0
Pict.: 0
07.Aug.11 11:35

Count of Thanks: 8
Reply  |  You aren't logged in. (Guest)   1

Roehrencodex refer Ultron to Mazda (France ?). I have a Ultron 4A15 with box. The box does not refer to a manufacturer. On the glass of the tube is the text: Licence SEM-SBR, which means that this tube was sold in Belgium. A Philips Roehren-Vergleichungslist from Januar 1939 shows that the Ultron  brand was used up to 1940. All considering, it looks likely that Ultron was a Mazda brand.

Attachments:

Gidi Verheijen
Gidi Verheijen
Officer
NL  Articles: 209
Schem.: 2069
Pict.: 2637
25.Jun.14 02:40

Count of Thanks: 6
Reply  |  You aren't logged in. (Guest)   2

Peter,

A few days ago I acquired a radio of the Belgian brand RGM (= Radio Geerts Mechelen). It is a prewar AC model and is equipped with 5 Ultron tubes: 4A17, 4A16, 4A22, 4A24 and 4R3. Maybe this helps in answering the question what the origin of the Ultron tubes is.

I will upload the pictures to the tube pages.

 

Gidi

Attachments:

Jacob Roschy
Jacob Roschy
Editor
D  Articles: 1676
Schem.: 17
Pict.: 68
30.Jun.14 10:28

Count of Thanks: 4
Reply  |  You aren't logged in. (Guest)   3

Before WWII the “Ultron” brand name has belonged to the “Manufacture Belge de Lampes Électroniqiues”, or in short “MBLE”.

MBLE used the brand name “Ultron” for European type tubes, for American type tubes they used the brand name “Adzam”, as well they used the brand name “Mazda” for lighting bulbs.

Apparently, after WWII they dropped the “Ultron” brand and henceforth they used the brand name “Adzam” for any tubes.

Later on, the German electronic distributor Bürklin took the brand name “Ultron” for the tubes they sold as reseller.

Regards, Jacob

Attachments:

  
rmXorg