Nakamichi SX - 1976 - JP
Ferricobalt formulation as per Nakamichi. Setting: Type II, 70μs.
It may also have been TDK that produced these earlier cassettes for Nakamichi, but I can't be sure. TDK definitely produced cassettes for Nakamichi later on, but I can't confirm this run was also manufactured by TDK. Being TDK, this would very likely be their famous SA formulation for the time. If anyone has actual information about what TDK tape formulation was used in these Nakamichi SX-II tapes, please share it with us and we will share it here for the benefit of everyone. Thank you!
NOTE: Only one available! Sorry about the price! The wrapper is brittle and split in many places (see pics). It was repaired with good clear adhesive tape, with no finger prints on any of it.
See Wikipedia: https://en.wikipedia.org/wiki/Nakamichi
Nakamichi Corp., Ltd. (株式会社ナカミチ, Kabushiki-Gaisha Nakamichi) is a Japanese consumer electronics brand that originated in Japan and gained a name from the 1970s onwards for innovative and high quality audio cassette decks. Nakamichi is a subsidiary of Chinese holding company Nimble Holdings.
Nakamichi manufactured electronic devices from its founding in 1948 but only sold them under its name from 1972. It is credited with offering the world's first three-head cassette deck. Since 1999, its product range has included design-oriented home cinema audio systems, sound bars, speakers, headphones, mini hi-fi systems, automotive stereo products and video DVD products.
Nakamichi SX - 1976 - US