What's everyone using these days (at 1-7/8 ips)?
And what do you know about Type I and II BASF test tapes that I have
here in my hands that call out IEC 94 (Prague 1981) parts 1 & 2 and DIN
45 513 part 7? I'd sure love to see those specs. I will put in a
request with Cornell (who doesn't have them) for an interlibrary loan if
I don't scare some up here as I hope to.
I also have Nakamichi DA09001B (20 kHz), DA09002B (15kHz), DA09003B
(10kHz), and DA09005B (400Hz); STL Cat #26 Mfg 91/101 3180/120usec; and
other azimuth and speed tapes.
There is a cassette sized piece of paper separated from test tapes also
noting that tape was recorded to 1976 DIN 45 513 Teil(?) 6
standard...and so it has no high frequency boost to compensate for
playback head gap size loss that is noticeable in combination
record-playback heads. There is also a warning on the paper about
magnetization and how to determine heads need demagnetization. Perhaps
this paper came with the STL tape noted above?
Already starting here, BTW:
Cornell Lab of Ornithology
159 Sapsucker Woods Road
Ithaca, NY 14850
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To interpret and conserve the Earth's biological diversity through research, education, and citizen science focused on birds.