02.07.2022, 19:59
Hi and thanks for the link! Yes, I've been on that page with the catalogues before, but it must have been a while ago, because more have been added since.
Unfortunately I could not find technical info by Agfa on their early Superchrom formulation. Their publication "Magneton-Illustrierte", which sometimes had quite detailed product descriptions, seems to have ceased just about one year before the Carat, and 2-3 years before the Superchrom was introduced. Anyway, for the older models, you can find lots of useful information there (all in German):
http://www.tbf-austria.org/agfa.html
As an example, take a look at the article about Super Ferro Dynamic on pages 2-4 of this number:
http://www.tbf-austria.org/files/agfa39.pdf
Besides the technical data and graphs for frequency response and THD, they reveal some formulation codes:
PE 67, PE 87, PE 127 is Stereochrom (C-60/90/120)
PE 68, PE 88, PE 128 is Super (their early Superferric)
PE 69, PE 89, PE 129 is Super Ferro Dynamic (the newer Superferric with higher dynamic and pigment from Pfizer)
Not mentioned in this article, but in earlier editions:
PE 65, PE 85, PE 125 were Agfa's first cassette tapes from the mid-late 1960's (with PE 65 being the exact same tape as the triple record for reel to reel)
PE 66, PE 86, PE 126 was the Low Noise type (again, PE 66 was also availabe for reel to reel)
Now about the Nora tape. I think this was an independent manufacturer in Turkey. Even though Raks also had shells which mimicked the 1979 Sony shells, they are too different from each other.
Some of the last generation Magna cassettes have shells which I suspect are from Nora, too (or whoever actually made them):
http://agfabasf.com/images/content/1347.jpg
I need to find an open one and take pictures. They have many details in common with the Nora shells. The problems with the tape you described sound familiar to me from a tape that Magna used in some of their better type I models, like Super Ferro XD or XD Professional. Could be either Magna's own or a Zonal tape.
Regards
Martin
Unfortunately I could not find technical info by Agfa on their early Superchrom formulation. Their publication "Magneton-Illustrierte", which sometimes had quite detailed product descriptions, seems to have ceased just about one year before the Carat, and 2-3 years before the Superchrom was introduced. Anyway, for the older models, you can find lots of useful information there (all in German):
http://www.tbf-austria.org/agfa.html
As an example, take a look at the article about Super Ferro Dynamic on pages 2-4 of this number:
http://www.tbf-austria.org/files/agfa39.pdf
Besides the technical data and graphs for frequency response and THD, they reveal some formulation codes:
PE 67, PE 87, PE 127 is Stereochrom (C-60/90/120)
PE 68, PE 88, PE 128 is Super (their early Superferric)
PE 69, PE 89, PE 129 is Super Ferro Dynamic (the newer Superferric with higher dynamic and pigment from Pfizer)
Not mentioned in this article, but in earlier editions:
PE 65, PE 85, PE 125 were Agfa's first cassette tapes from the mid-late 1960's (with PE 65 being the exact same tape as the triple record for reel to reel)
PE 66, PE 86, PE 126 was the Low Noise type (again, PE 66 was also availabe for reel to reel)
Now about the Nora tape. I think this was an independent manufacturer in Turkey. Even though Raks also had shells which mimicked the 1979 Sony shells, they are too different from each other.
Some of the last generation Magna cassettes have shells which I suspect are from Nora, too (or whoever actually made them):
http://agfabasf.com/images/content/1347.jpg
I need to find an open one and take pictures. They have many details in common with the Nora shells. The problems with the tape you described sound familiar to me from a tape that Magna used in some of their better type I models, like Super Ferro XD or XD Professional. Could be either Magna's own or a Zonal tape.
Regards
Martin