<nowiki>TDK KR; TDK KR; rare type of true chrome Type II compact cassettes by TDK; редкий тип компакт-кассет типа II производства TDK на основе настоящего хромдиоксида</nowiki>
TDK KR 
rare type of true chrome Type II compact cassettes by TDK
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Inception
  • 1973
End time
  • 1974
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The TDK KR (Krom) cassettes, made in 1973/74, used true chrome formulation patented by DuPont. The Japanese sought a royalty-free alternative, and eventually developed the ferrocobalt formulation compatible with chrome settings. As soon as TDK had the new technology going, they killed the KR type and quit chrome tape production altogether. All their Type II tapes, SA and the like, were ferrocobalts.

Media in category "TDK KR"

The following 2 files are in this category, out of 2 total.