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In Reply to: RE: CCa Siemens Identification (with actual photos) posted by Nunki on February 13, 2021 at 07:40:07:
OK, interesting! Thanks Nunki.
So, Lorenz after 1958 manufactures its tubes in Stuttgard no longer as Lorenz AG but as Standard Elektrik Lorenz (SEL) and uses a 2-line code system.
But this information may mean that the information from the Tube Museum and Audiotubes.com could be incomplete and perhaps does not cover all production, especially from the late 1960s onwards.
Looking at the pictures of those SEL tubes,there is a difference on the board, if that means anything. On the Siemens the two lines of codes are separated by a space and the SEL has no space.
There is still room for more discussion on this point. There is missing information, perhaps because these are rare and expensive tubes and not so many people have been involved.
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Follow Ups
- RE: CCa Siemens Identification (with actual photos) - beto1 08:19:46 02/13/21 (0)