13.07.2024, 09:58
(Dieser Beitrag wurde zuletzt bearbeitet: 13.07.2024, 10:10 von Kirunavaara.)
Megadium is mentioned in the 1985 brochure, which I unfortunatey can't find now. Here is a quote from the book Zeitschichten, 4th edition, page 511:
"Als Nachfolger der ferro super LH I von 1978 fungierte seit 1982 die Kassette LH super I, ihrerseits 1985
abgelöst von LH maxima I, beschichtet mit einem neuartigen Pigment, dem BASF den Namen Megadium gegeben
hatte. Wie der Namensteil „maxima“ zeigt (und neutrale Testergebnisse bestätigten), gehörte diese Kassette
zum Spitzenbereich der IEC I-Klasse 3417 (und erhob damit den analogen Anspruch zur chromdioxid maxima II).
1986 folgte mit LH maxima XI kurzzeitig eine Megadium-Doppelschicht-Kassette,3418 die sich allerdings nicht
durchsetzen konnte."
When I find the brochure again, I will post a picture.
The Pfizer oxide was first used for LH super in 1973 or 74. My guess is that the first ferro super LH I from 1978 is based on the same pigments, but treated with cobalt. It is also likely that LH super I in 1982 used the new LH-D pigment (no idea whether it was still based on Pfizer, or BASF's own base material) and cobalt-doped it. There is also an in-between generation of ferro super LH I tape from ca 1979/80 to 1982, which looks slightly darker than the first generation, but has less shedding and violining issues.
BP is a new code I've never seen before, but putting together all pieces of information, I am quite sure it means Portugal. I have not yet found evidence that BASF had an own assembly line there, but there were some obvious collaborations with local companies ike Audio Magnetics and Sonovox in the 70's and 80's. I wouldn't be surprised if Sonovox/Eurex packaged these German made cassettes for the Portuguese market, in order to save some import taxes or similar considerations (Portugal and Spain became members of the EC in 1986).
Oh, and there was also another name for a BASF tape coating: LD Linear Directed iron oxide, found on Ferro Extra I from 1991 onwards, but first appeared on the Colours Of Sound and Soundtrack design series in 1990:
http://agfabasf.com/images/content/img211-1.jpg
http://agfabasf.com/images/content/img214-.jpg
Thechnicaly, it was just a marketing term for the LH-D type, and was continued to be printed onto Ferro Extras when they contained x49 tape from Munich. At least they didn't mention LD on the Saehan made version for the US market:
http://agfabasf.com/images/content/20230123_174416.jpg
Regards
Martin
"Als Nachfolger der ferro super LH I von 1978 fungierte seit 1982 die Kassette LH super I, ihrerseits 1985
abgelöst von LH maxima I, beschichtet mit einem neuartigen Pigment, dem BASF den Namen Megadium gegeben
hatte. Wie der Namensteil „maxima“ zeigt (und neutrale Testergebnisse bestätigten), gehörte diese Kassette
zum Spitzenbereich der IEC I-Klasse 3417 (und erhob damit den analogen Anspruch zur chromdioxid maxima II).
1986 folgte mit LH maxima XI kurzzeitig eine Megadium-Doppelschicht-Kassette,3418 die sich allerdings nicht
durchsetzen konnte."
When I find the brochure again, I will post a picture.
The Pfizer oxide was first used for LH super in 1973 or 74. My guess is that the first ferro super LH I from 1978 is based on the same pigments, but treated with cobalt. It is also likely that LH super I in 1982 used the new LH-D pigment (no idea whether it was still based on Pfizer, or BASF's own base material) and cobalt-doped it. There is also an in-between generation of ferro super LH I tape from ca 1979/80 to 1982, which looks slightly darker than the first generation, but has less shedding and violining issues.
BP is a new code I've never seen before, but putting together all pieces of information, I am quite sure it means Portugal. I have not yet found evidence that BASF had an own assembly line there, but there were some obvious collaborations with local companies ike Audio Magnetics and Sonovox in the 70's and 80's. I wouldn't be surprised if Sonovox/Eurex packaged these German made cassettes for the Portuguese market, in order to save some import taxes or similar considerations (Portugal and Spain became members of the EC in 1986).
Oh, and there was also another name for a BASF tape coating: LD Linear Directed iron oxide, found on Ferro Extra I from 1991 onwards, but first appeared on the Colours Of Sound and Soundtrack design series in 1990:
http://agfabasf.com/images/content/img211-1.jpg
http://agfabasf.com/images/content/img214-.jpg
Thechnicaly, it was just a marketing term for the LH-D type, and was continued to be printed onto Ferro Extras when they contained x49 tape from Munich. At least they didn't mention LD on the Saehan made version for the US market:
http://agfabasf.com/images/content/20230123_174416.jpg
Regards
Martin